Heatiator Indoor Fireplace NNXT3933IL User Manual
Owner’s Manual  
Installation and Operation  
Model(s):  
NNXT4236I, NNXT4236IL  
NNXT3933I, NNXT3933IL  
CAUTION  
DO NOT DISCARD THIS MANUAL  
•
Read, understand and follow  
these instructions for safe  
installation and operation.  
•
Leave this manual with  
party responsible for  
use and operation.  
• Important operating and  
maintenance instructions  
included.  
WARNING  
WARNING  
HOT SURFACES!  
Glass and other surfaces are hot during  
operation and cool down.  
If the information in these instruc-  
tions is not followed exactly, a  
fire may result causing property  
damage, personal injury, or death.  
Hot glass will cause burns.  
• Do not touch glass until it is cooled  
• NEVER allow children to touch glass  
• Keep children away  
• Do not store or use gasoline or other flam-  
mable vapors and liquids in the vicinity of  
this or any other appliance.  
• CAREFULLY SUPERVISE children in same room as  
appliance.  
• Alert children and adults to hazards of high  
temperatures.  
High temperatures may ignite clothing or other  
flammable materials.  
• What to do if you smell gas:  
- Do not try to light any appliance.  
- Do not touch any electrical switch. Do not  
use any phone in your building.  
- Immediately call your gas supplier from  
a neighbor’s phone. Follow the gas  
supplier’s instructions.  
• Keep clothing, furniture, draperies and other combustibles  
away.  
This appliance has been supplied with an integral  
barrier to prevent direct contact with the fixed glass  
panel. Do NOT operate the appliance with the barrier  
removed.  
Contact your dealer or Hearth & Home Technologies if the  
barrier is not present or help is needed to properly install one.  
- If you cannot reach your gas supplier, call  
the fire department.  
• Installation and service must be performed  
by a qualified installer, service agency, or  
the gas supplier.  
In the Commonwealth of Massachusetts installation must  
be performed by a licensed plumber or gas fitter;  
This appliance may be installed as an OEM installation  
in manufactured home (USA only) or mobile home and  
must be installed in accordance with the manufacturer’s  
instructions and the manufactured home construction and  
safety standard, Title 24 CFR, Part 3280 or Standard for  
Installation in Mobile Homes, CAN/CSA Z240MH.  
See Table of Contents for location of additional  
Commonwealth of Massachusetts requirements.  
Installation and service of this appliance should be performed  
by qualified personnel. Hearth & Home Technologies  
suggests NFI certified or factory-trained professionals, or  
technicians supervised by an NFI certified professional.  
This appliance is only for use with the type(s) of gas  
indicated on the rating plate.  
Heatilator • Novus NNXT • 4055-879 • Rev. o • 2/12  
Download from Www.Somanuals.com. All Manuals Search And Download.  
1
Safety Alert Key:  
• DANGER! Indicates a hazardous situation which, if not avoided will result in death or serious injury.  
• WARNING! Indicates a hazardous situation which, if not avoided could result in death or serious injury.  
• CAUTION! Indicates a hazardous situation which, if not avoided, could result in minor or moderate injury.  
• NOTICE: Used to address practices not related to personal injury.  
Table of Contents  
A. Congratulations  
B. Limited Lifetime Warranty  
2
5
6 Termination Locations  
A. Vent Termination Minimum Clearances  
22  
1 Listing and Code Approvals  
A. Appliance Certification  
7 Vent Information and Diagrams  
A. Approved Pipe  
7
7
7
7
7
7
7
24  
24  
24  
24  
25  
B. Glass Specifications  
C. BTU Specifications  
B. Vent Table Key  
C. Use of Elbows  
D. Measuring Standards  
E. Vent Diagrams  
D. High Altitude Installations  
E. Non-Combustible Materials Specification  
F. Combustible Materials Specification  
G. Electrical Codes  
H. Requirements for the Commonwealth  
of Massachusetts  
8 Vent Clearances and Framing  
A. Pipe Clearances to Combustibles  
B. Wall Penetration Framing  
35  
35  
36  
37  
8
C. Install the Ceiling Firestop  
D. Install Attic Insulation Shield  
User Guide  
9 Appliance Preparation  
A. Top Vent  
38  
39  
40  
2 Operating Instructions  
A. Gas Fireplace Safety  
B. Your Fireplace  
B. Rear Vent  
C. Secure and Level the Appliance  
9
9
10  
10  
10  
10  
10 Install Vent Pipe  
C. Fan Kit (optional)  
A. Assemble Vent Sections (DVP Only)  
B. Assemble Vent Sections (SLP Only)  
C. Assemble Slip Sections  
D. Secure the Vent Sections  
E. Disassemble Vent Sections  
F. Install Decorative Ceiling Components  
(SLP only)  
G. Install Metal Roof Flashing  
H. Assemble and Install Storm Collar  
I. Install Vertical Termination Cap  
J. Install Decorative Wall Components (SLP only) 46  
K. Heat Shield Requirements for Horizontal  
41  
42  
42  
43  
43  
D. Clear Space  
E. Decorative Doors and Fronts  
F. Fixed Glass Assembly  
G. Remote Controls, Wall Controls and Wall  
Switches  
H. IPI Battery Tray/Battery Installation  
I. Control Module Operation  
J. Before Lighting Fireplace  
K. Lighting Instructions (IPI)  
L. After Fireplace is Lit  
10  
11  
11  
11  
12  
13  
13  
44  
45  
45  
46  
M. Frequently Asked Questions  
3 Maintenance and Service  
Termination  
L. Install Horizontal Termination Cap  
46  
47  
A. Maintenance Tasks-Homeowner  
14  
B. Maintenance Tasks-Qualified Service Technician 15  
11 Shrouds  
A. HHT Shrouds  
B. Field Constructed Shrouds  
48  
48  
Installer Guide  
12 Gas Information  
4 Getting Started  
A. Fuel Conversion  
B. Gas Pressure  
C. Gas Connection  
D. High Altitude Installations  
50  
50  
50  
50  
A. Typical Appliance System  
B. Design and Installation Considerations  
C. Tools and Supplies Needed  
16  
17  
17  
17  
D. Inspect Appliance and Components  
13 Electrical Information  
5 Framing and Clearances  
A. Select Appliance Location  
B. Construct the Appliance Chase  
C. Clearances  
A. Wiring Requirements  
51  
51  
51  
52  
53  
53  
54  
18  
19  
20  
21  
B. Intellifire Plus™ Ignition System Wiring  
C. Optional Accessories Requirements  
D. Electrical Service and Repair  
E. Junction Box Installation  
F. Wall Switch Installation for Fan (Optional)  
G. Remote Control Installation & Operations  
D. Mantel and Wall Projections  
Heatilator • Novus NNXT • 4055-879 • Rev. o • 2/12  
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3
14 Finishing  
A. Mantel and Wall Projections  
B. Facing Material  
58  
59  
15 Appliance Setup  
A. Remove the Packaging  
B. Remove Screen Package Assembly  
C. Remove the Shipping Materials  
D. Removing Fixed Glass Assembly  
E. Remove Top Log Pack  
F. Remove Packing Material  
G. Clean the Appliance  
H. Accessories  
I. Place the Rockwool  
J. Place the Lava Rock  
K. Place the Vermiculite  
L. Assemble Logs  
M. Replacing Fixed Glass Assembly  
N. Air Shutter Setting  
O. Remove Screen Protector  
P. Unpackage the Hood & Floor Cover  
Q. Install Hood  
R. Install Control Heat Shield  
S. Install Floor Cover  
60  
60  
60  
60  
60  
60  
61  
61  
61  
61  
61  
61  
62  
62  
63  
63  
63  
63  
64  
65  
T. Close the Screen Assembly  
16 Troubleshooting  
A. Intellifire Plus™ Intermittent Ignition System  
66  
17 Reference Materials  
A. Appliance Dimension Diagram  
B. Vent Components Diagrams  
C. Service Parts  
68  
69  
77  
81  
82  
D. Optional Components  
E. Contact Information  
= Contains updated information.  
4
Heatilator • Novus NNXT • 4055-879 • Rev. o • 2/12  
Download from Www.Somanuals.com. All Manuals Search And Download.  
B. Limited Lifetime Warranty  
Hearth & Home Technologies Inc.  
LIMITED LIFETIME WARRANTY  
Hearth & Home Technologies Inc., on behalf of its hearth brands (”HHT”), extends the following warranty for  
HHT gas, wood, pellet, coal and electric hearth appliances that are purchased from an HHT authorized dealer.  
WARRANTY COVERAGE:  
HHT warrants to the original owner of the HHT appliance at the site of installation, and to any transferee taking ownership  
of the appliance at the site of installation within two years following the date of original purchase, that the HHT appliance  
will be free from defects in materials and workmanship at the time of manufacture. After installation, if covered compo-  
nents manufactured by HHT are found to be defective in materials or workmanship during the applicable warranty period,  
HHT will, at its option, repair or replace the covered components. HHT, at its own discretion, may fully discharge all of its  
obligations under such warranties by replacing the product itself or refunding the verified purchase price of the product  
itself. The maximum amount recoverable under this warranty is limited to the purchase price of the product. This warranty  
is subject to conditions, exclusions and limitations as described below.  
WARRANTY PERIOD:  
Warranty coverage begins on the date of original purchase. In the case of new home construction, warranty coverage  
begins on the date of first occupancy of the dwelling or six months after the sale of the product by an independent,  
authorized HHT dealer/ distributor, whichever occurs earlier. The warranty shall commence no later than 24 months  
following the date of product shipment from HHT, regardless of the installation or occupancy date. The warranty period for  
parts and labor for covered components is produced in the following table.  
The term “Limited Lifetime” in the table below is defined as: 20 years from the beginning date of warranty coverage for  
gas appliances, and 10 years from the beginning date of warranty coverage for wood, pellet, and coal appliances. These  
time periods reflect the minimum expected useful lives of the designated components under normal operating conditions.  
Warranty Period  
Parts Labor  
HHT Manufactured Appliances and Venting  
EPA  
Components Covered  
Gas  
X
Wood Pellet  
Coal Electric Venting  
Wood  
All parts and material except as  
covered by Conditions,  
Exclusions, and Limitations  
listed  
1 Year  
X
X
X
X
X
X
Igniters, electronic components,  
and glass  
X
X
X
X
X
X
2 years  
X
X
X
Factory-installed blowers  
Molded refractory panels  
3 years  
X
X
Firepots and burnpots  
Castings and baffles  
5 years 1 year  
X
X
Manifold tubes,  
HHT chimney and termination  
7 years 3 years  
X
X
10  
1 year  
years  
X
X
X
Burners, logs and refractory  
Firebox and heat exchanger  
Limited  
3 years  
Lifetime  
X
X
X
X
X
X
X
X
All replacement parts  
beyond warranty period  
90 Days  
X
X
See conditions, exclusions, and limitations on next page.  
4021-645C 12-29-10  
Page 1 of 2  
Heatilator • Novus NNXT • 4055-879 • Rev. o • 2/12  
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5
B. Limited Lifetime Warranty (continued)  
WARRANTY CONDITIONS:  
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LIMITATIONS OF LIABILITY:  
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Page 2 of 2  
6
Heatilator • Novus NNXT • 4055-879 • Rev. o • 2/12  
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Listing and Code Approvals  
1
A. Appliance Certification  
D. High Altitude Installations  
NOTICE: If the heating value of the gas has been reduced,  
these rules do not apply. Check with your local gas utility or  
authorities having jurisdiction.  
MODELS: NNXT4236I, NNXT4236IL, NNXT3933I,  
NNXT3933IL  
LABORATORY: Underwriters Laboratories, Inc. (UL)  
TYPE: Vented Gas Fireplace Heaters  
When installing above 2000 feet elevation:  
STANDARD: ANSI Z21.88-2002•CSA2.33-M2002•UL307B  
•
In the USA: Reduce input rate 4% for each 1000 feet  
above 2000 feet.  
•
In CANADA: Reduce input rate 10% for elevations  
between 2000 feet and 4500 feet. Above 4500 feet,  
consult local gas utility.  
This product is listed to ANSI standards for “Vented Gas  
Fireplace Heaters” and applicable sections of “Gas Burn-  
ing Heating Appliances for Manufactured Homes and  
Recreational Vehicles”, and “Gas Fired Appliances for  
Use at High Altitudes”.  
Check with your local gas utility to determine proper  
orifice size.  
E. Non-Combustible Materials Specification  
NOTICE: This installation must conform with local codes.  
In the absence of local codes you must comply with the  
National Fuel Gas Code, ANSI Z223.1-latest edition in  
the U.S.A. and the CAN/CGA B149 Installation Codes in  
Canada.  
Material which will not ignite and burn. Such materials are  
those consisting entirely of steel, iron, brick, tile, concrete,  
slate, glass or plasters, or any combination thereof.  
Materials that are reported as passing ASTM E 136,  
Standard Test Method for Behavior of Materials in a  
Vertical Tube Furnace at 750 ºC and UL763 shall be  
considered non-combustible materials.  
NOT INTENDED FOR USE AS A PRIMARY HEAT SOURCE.  
This appliance is tested and approved as either supplemental  
room heat or as a decorative appliance. It should not be fac-  
tored as primary heat in residential heating calculations.  
F. Combustible Materials Specification  
Materials made of or surfaced with wood, compressed  
paper, plant fibers, plastics, or other material that can ig-  
nite and burn, whether flame proofed or not, or plastered  
or unplastered shall be considered combustible materials.  
B. Glass Specifications  
This appliance is equipped with 5 mm ceramic glass. Re-  
place glass only with 5 mm ceramic glass. Please contact  
your dealer for replacement glass.  
G. Electrical Codes  
NOTICE: This appliance must be electrically wired  
and grounded in accordance with local codes or, in the  
absence of local codes, with National Electric Code  
ANSI/NFPA 70-latest edition or the Canadian Electric  
Code CSA C22.1.  
C. BTU Specifications  
Novus  
NNXT4236  
NNXT3933  
Max/Min Input Rate (NG)  
Orifice Size (NG)  
31,000/18,500  
29,000/16,000  
#37/.104/2.65 mm #39/.0995/2.53 mm  
•
A120 VAC circuit for this product must be protected with  
ground-fault circuit-interrupter protection, in compliance  
with the applicable electrical codes, when it is installed  
in locations such as in bathrooms or near sinks.  
Max/Min Input Rate (LP)  
Orifice Size (LP)  
30,000/17,000  
27,000/15,750  
.061/155 mm  
#52/.0635/1.62 mm  
Heatilator • Novus NNXT • 4055-879 • Rev. o • 2/12  
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7
Inspection  
Note: The following requirements reference various  
Massachusetts and national codes not contained in this  
document.  
The state or local gas inspector of the side wall horizon-  
tally vented gas fueled equipment shall not approve the  
installation unless, upon inspection, the inspector ob-  
serves carbon monoxide detectors and signage installed  
in accordance with the provisions of 248 CMR 5.08(2)(a)1  
through 4.  
H. Requirements for the Commonwealth of  
Massachusetts  
For all side wall horizontally vented gas fueled equipment  
installed in every dwelling, building or structure used in  
whole or in part for residential purposes, including those  
owned or operated by the Commonwealth and where the  
side wall exhaust vent termination is less than seven (7)  
feet above finished grade in the area of the venting, in-  
cluding but not limited to decks and porches, the following  
requirements shall be satisfied:  
Exemptions  
The following equipment is exempt from 248 CMR  
5.08(2)(a)1 through 4:  
•
The equipment listed in Chapter 10 entitled “Equipment  
Not Required To Be Vented” in the most current edition  
of NFPA 54 as adopted by the Board; and  
•
Product Approved side wall horizontally vented gas  
fueled equipment installed in a room or structure  
separate from the dwelling, building or structure used  
in whole or in part for residential purposes.  
Installation of Carbon Monoxide Detectors  
At the time of installation of the side wall horizontal  
vented gas fueled equipment, the installing plumber or  
gas fitter shall observe that a hard wired carbon mon-  
oxide detector with an alarm and battery back-up is  
installed on the floor level where the gas equipment is  
to be installed. In addition, the installing plumber or gas  
fitter shall observe that a battery operated or hard wired  
carbon monoxide detector with an alarm is installed on  
each additional level of the dwelling, building or struc-  
ture served by the side wall horizontal vented gas fueled  
equipment. It shall be the responsibility of the property  
owner to secure the services of qualified licensed profes-  
sionals for the installation of hard wired carbon monoxide  
detectors.  
MANUFACTURER REQUIREMENTS  
Gas Equipment Venting System Provided  
When the manufacturer of Product Approved side wall  
horizontally vented gas equipment provides a venting  
system design or venting system components with the  
equipment, the instructions provided by the manufacturer  
for installation of the equipment and the venting system  
shall include:  
•
Detailed instructions for the installation of the venting  
system design or the venting system components;  
and  
•
A complete parts list for the venting system design or  
venting system.  
In the event that the side wall horizontally vented gas  
fueled equipment is installed in a crawl space or an attic,  
the hard wired carbon monoxide detector with alarm and  
battery back-up may be installed on the next adjacent  
floor level.  
Gas Equipment Venting System NOT Provided  
When the manufacturer of a Product Approved side  
wall horizontally vented gas fueled equipment does not  
provide the parts for venting the flue gases, but identi-  
fies “special venting systems”, the following requirements  
shall be satisfied by the manufacturer:  
In the event that the requirements of this subdivision can  
not be met at the time of completion of installation, the  
owner shall have a period of thirty (30) days to comply  
with the above requirements; provided, however, that dur-  
ing said thirty (30) day period, a battery operated carbon  
monoxide detector with an alarm shall be installed.  
•
The referenced “special venting system” instructions  
shall be included with the appliance or equipment  
installation instructions; and  
•
The “special venting systems” shall be Product  
Approved by the Board, and the instructions for that  
system shall include a parts list and detailed installation  
instructions.  
Approved Carbon Monoxide Detectors  
Each carbon monoxide detector as required in accor-  
dance with the above provisions shall comply with NFPA  
720 and be ANSI/UL 2034 listed and IAS certified.  
A copy of all installation instructions for all Product Ap-  
proved side wall horizontally vented gas fueled equip-  
ment, all venting instructions, all parts lists for venting  
instructions, and/or all venting design instructions shall  
remain with the appliance or equipment at the completion  
of the installation.  
Signage  
A metal or plastic identification plate shall be permanently  
mounted to the exterior of the building at a minimum  
height of eight (8) feet above grade directly in line with  
the exhaust vent terminal for the horizontally vented gas  
fueled heating appliance or equipment. The sign shall  
read, in print size no less than one-half (1/2) in. in size,  
“GAS VENT DIRECTLY BELOW. KEEP CLEAR OF ALL  
OBSTRUCTIONS”.  
See Gas Connection section for additional Common-  
wealth of Massachusetts requirements.  
8
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User Guide  
Operating Instructions  
2
•
Install a physical barrier such as:  
A. Gas Fireplace Safety  
-
-
A decorative firescreen.  
Adjustable safety gate.  
WARNING  
HOT SURFACES!  
•
Install a switch lock or a wall/remote control with child  
protection lockout feature.  
Keep remote controls out of reach of children.  
Never leave children alone near a hot fireplace, whether  
operating or cooling down.  
Teach children to NEVER touch the fireplace.  
Consider not using the fireplace when children will be  
present.  
Glass and other surfaces are hot  
during operation and cool down.  
Hot glass will cause burns.  
• Do not touch glass until it is cooled  
• NEVER allow children to touch glass  
• Keep children away  
•
•
•
•
• CAREFULLY SUPERVISE children in  
Contact your dealer for more information, or visit: www.  
hpba.org/safety-information.  
same room as appliance.  
• Alert children and adults to hazards of high  
temperatures.  
High temperatures may ignite clothing or other  
flammable materials.  
To prevent unintended operation when not using your  
fireplace for an extended period of time (summer months,  
vacations, trips, etc):  
•
•
•
•
Remove batteries from remote controls.  
Turn off wall controls.  
Unplug 6-volt power supply and/or remove batteries.  
Turn off gas controls valve on standing pilot models.  
• Keep clothing, furniture, draperies and other  
combustibles away.  
This appliance has been supplied with an integral  
barrier to prevent direct contact with the fixed glass  
panel. Do NOT operate the appliance with the barrier  
B. Your Fireplace  
removed.  
Contact your dealer or Hearth & Home Technologies if the  
barrier is not present or help is needed to properly install one.  
WARNING! DO NOT operate fireplace before reading and  
understanding operating instructions. Failure to operate  
fireplace according to operating instructions could cause  
fire or injury.  
If you expect that small children or vulnerable adults may  
come into contact with this fireplace, the following precau-  
tions are recommended:  
Decorative Doors  
(not shown)  
Section 2  
Fixed Glass Assembly  
Section 15  
Mantel  
Fan Kits  
Section 2  
Clear Space  
Section 2  
Hearth  
(not required)  
Figure 2.1 General Operating Parts  
Heatilator • Novus NNXT • 4055-879 • Rev. o • 2/12  
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9
C. Fan Kit (optional)  
F. Fixed Glass Assembly  
If desired, a fan kit may be added. Contact your dealer to  
order the correct fan kit.  
See Section 15.D.  
G. Remote Controls, Wall Controls and Wall  
Switches  
D. Clear Space  
This appliance comes supplied with an RC200 hand-held  
remote.  
WARNING! DO NOT place combustible objects in front of  
the fireplace or block louvers. High temperatures may start  
a fire. See Figure 2.2.  
•
•
Refer to Section 13.G. for operating instructions.  
Other controls are available. See your dealer for full  
details.  
Avoid placing candles and other heat-sensitive objects on  
mantel or hearth. Heat may damage these objects.  
Figure 2.2 Clear Space  
E. Decorative Doors and Fronts  
WARNING! Risk of Fire! Install ONLY doors or fronts  
approved by Hearth & Home Technologies. Unapproved  
doors or fronts may cause fireplace to overheat.  
This fireplace has been supplied with an integral barrier to  
prevent direct contact with the fixed glass panel. DO NOT  
operate the fireplace with the barrier removed.  
Contact your dealer or Hearth & Home Technologies if the  
barrier is not present or help is needed to properly install  
one.  
For more information refer to the instructions supplied  
with your decorative door or front.  
10  
Heatilator • Novus NNXT • 4055-879 • Rev. o • 2/12  
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H. IPI Battery Tray/Battery Installation  
MODULE  
The IntelliFire PlusTM system has a battery backup option.  
Battery longevity and performance will be affected by the  
service temperatures of this appliance.  
NOTICE: Batteries should only be used as a power source  
in the event of an emergency such as an outage.  
I. Control Module Operation  
1. The control module has an ON/OFF/REMOTE selector  
switch that must be set. See Figure 2.3.  
OFF Position: Appliance will ignore all power inputs and  
will not respond to any commands from a wall switch or  
remote. The unit should be in the OFF position during  
installation, service, battery installation, fuel conversion,  
and in the event that the control goes into LOCK-OUT  
mode as a result of an error code.  
NG/LP SETTING  
WIRE LEAD FROM REGULATOR CONNECTS HERE  
Figure 2.3 Control Module  
ON Position: Appliance will ignite and run continuously  
in the HI flame setting, with no adjustment in flame  
output. This mode of operation is primarily used for  
initial installation or power outage operation with battery  
backup.  
•
•
•
Wait five (5) minutes to allow possible accumulated gas  
to clear.  
Set the module selector switch to ON or REMOTE  
position.  
REMOTE Position: Appliance will initiate commands  
from an optional wired wall switch and/or the wireless  
remote.  
Start the appliance.  
WARNING! Risk of Explosion! DO NOT press the mod-  
ule reset switch more than one time within a five minute  
time period. Gas may accumulate in firebox. Call a quali-  
fied service technician.  
2. If using a wired wall switch with the module in REMOTE  
mode, the flame output can be adjusted with the HI/LO  
selector switch on the module. See Figure 2.3. Note  
that the flame HI/LO selector switch will become inactive  
once an optional remote control is programmed to the  
control module. Note that the control module will always  
ignite the fireplace on HI and remain so for the initial 10  
seconds of operation. If the HI/LO is switched to the  
LO position, the flame output will automatically drop to  
the lowest setting after the flame has been established  
for 10 sec. After this 10 second period, the flame can  
be adjusted from HI to LO with the switch.  
Nine Hour Safety Shutdown Feature  
This appliance has a safety feature that automatically  
shuts down the fireplace after 9 hours of continuous  
operation without receiving a command from the  
remote.  
3. The control module has safety feature that automatically  
shuts down the fireplace after 9 hours of continuous  
operation without receiving a command from the remote.  
4. If you intend to use both an optional wired wall switch  
and the remote control to operate your fireplace, the wall  
switch will override any commands given by the remote.  
J. Before Lighting Fireplace  
Before operating this fireplace for the first time, have a  
qualified service technician:  
5. Module Reset  
This module may lock-out under certain conditions.  
When this occurs, the appliance will not ignite or respond  
to commands. The module will go into lock-out mode  
by emitting three audible beeps, then continuously  
displaying a RED/GREEN error code at its status  
indicator LED.  
•
Verify all shipping materials have been removed from  
inside and/or underneath the firebox.  
Review proper placement of logs, rockwool and/or other  
decorative materials.  
Check the wiring.  
Check the air shutter adjustment.  
Ensure that there are no gas leaks.  
Ensure that the glass is sealed and in the proper position  
and that the integral barrier is in place.  
•
•
•
•
•
•
Check battery tray. Remove batteries if installed.  
Batteries should only be installed for use during power  
outages. See Section H.  
•
•
Locate the module selector switch. (See Figure 2.3).  
Set the module selector switch to the OFF position.  
WARNING! Risk of Fire or Asphyxiation! DO NOT oper-  
ate fireplace with fixed glass assembly removed.  
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11  
K. Lighting Instructions (IPI)  
•
•
For normal use, activate/deactivate your fireplace with the wall switch or remote control.  
The IPI system may be operated with four AA-cell batteries. When using batteries, unplug the power supply. To prolong  
battery life, remove them when using the power supply.  
•
If your fireplace must be deactivated for serviced or an extended period of time, follow the instructions below.  
FOR YOUR SAFETY  
LIGHTING  
READ BEFORE LIGHTING  
INSTRUCTIONS (IPI)  
WARNING: If you do not follow these instructions exactly, a fire  
or explosion may result causing property damage, personal injury  
or loss of life.  
1. This appliance is equipped with an ignition  
device which automatically lights the burner.  
DO NOT try to light the burner by hand.  
• Immediately call your gas supplier  
from a neighbor’s phone. Follow the  
gas supplier’s instructions.  
A. This appliance is equipped with an  
intermittent pilot ignition (IPI) device  
which automatically lights the burn-  
er. DO NOT try to light the burner by  
hand.  
GAS  
VALVE  
• If you cannot reach your gas sup-  
plier, call the fire department.  
B. BEFORE LIGHTING, smell all around  
the appliance area for gas. Be sure to  
smell next to the floor because some  
gas is heavier than air and will settle  
on the floor.  
C. DO NOT use this appliance if any  
part has been under water. Imme-  
diately call a qualified service tech-  
nician to inspect the appliance and  
to replace any part of the control  
system and any gas control which  
has been under water.  
2. Wait five (5) minutes to clear out any gas.  
Then smell for gas, including near the floor. If  
you smell gas, STOP! Follow “B” in the Safety  
Information located on the left side of this la-  
bel. If you do not smell gas, go to next step.  
WHAT TO DO IF YOU SMELL GAS  
• DO NOT try to light any appliance.  
3. To light the burner:  
• DO NOT touch any electric switch; do  
not use any phone in your building.  
Equipped with wall switch: Turn ON/OFF switch  
to ON.  
Equipped with remote or wall control: Press  
ON or FLAME button.  
WARNING: CAUTION:  
Equipped with thermostat: Set temperature to  
desired setting.  
Hot while in operation. DO NOT touch.  
Keep children, clothing, furniture, gaso-  
line and other liquids having flammable  
vapors away.  
DO NOT CONNECT LINE VOLT-  
AGE (110/120 VAC OR 220/240  
VAC) TO THE CONTROL VALVE.  
4. If the appliance does not light after three tries,  
call your service technician or gas supplier.  
Improper installation, adjustment, al-  
teration, service or maintenance can  
cause injury or property damage. Re-  
fer to the owner’s information manual  
provided with this appliance.  
TO TURN OFF  
GAS TO APPLIANCE  
1. Equipped with wall switch: Turn ON/OFF switch  
DO NOT operate the appliance with  
fixed glass assembly removed, cracked  
or broken. Replacement of the fixed  
glass assembly should be done by a  
licensed or qualified service person.  
to OFF.  
This appliance needs fresh air for  
safe operation and must be installed  
so there are provisions for adequate  
combustion and ventilation air.  
Equipped with remote or wall control: Press  
OFF button.  
NOT FOR USE  
WITH SOLID FUEL  
Equipped with thermostat: Set temperature to  
lowest setting.  
If not installed, operated, and main- For use with natural gas and propane.  
tained in accordance with the manufac- A conversion kit, as supplied by the  
turer’s instructions, this product could manufacturer, shall be used to convert  
expose you to substances in fuel or this appliance to the alternate fuel.  
2. Service technician should turn off electric  
power to the control when performing service.  
fuel combustion which are known to  
the State of California to cause can-  
cer, birth defects, or other reproductive  
Also Certified for Installation in a  
Bedroom or a Bedsitting Room.  
593-913G  
For assistance or additional informa-  
tion, consult a qualified installer, ser-  
vice agency or the gas supplier.  
harm.  
Keep burner and control compartment  
clean. See installation and operating  
instructions accompanying appliance.  
For additional information on operating your  
Hearth & Home Technologies fireplace, please refer to www.fireplaces.com.  
Final inspection by  
12  
Heatilator • Novus NNXT • 4055-879 • Rev. o • 2/12  
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L. After Fireplace is Lit  
Initial Break-in Procedure  
•
The fireplace should be run three to four hours  
continuously on high.  
•
•
•
•
Turn the fireplace off and allow it to completely cool.  
Remove fixed glass assembly. See Section 15.D.  
Clean fixed glass assembly. See Section 3.  
Replace the fixed glass assembly and run continuously  
on high an additional 12 hours.  
This cures the materials used to manufacture the fire-  
place.  
NOTICE! Open windows for air circulation during fireplace  
break-in.  
• Some people may be sensitive to smoke and  
odors.  
• Smoke detectors may activate.  
M.Frequently Asked Questions  
ISSUE  
SOLUTIONS  
Condensation on the glass  
This is a result of gas combustion and temperature variations. As the appliance warms, this  
condensation will disappear.  
Blue flames  
This is a result of normal operation and the flames will begin to yellow as the appliance is allowed  
to burn for 20 to 40 minutes.  
Odor from appliance  
When first operated, this appliance may release an odor for the first several hours. This is caused  
by the curing of materials from manufacturing. Odor may also be released from finishing materials  
and adhesives used near the appliance. These circumstances may require additional curing  
related to the installation environment.  
Film on the glass  
Metallic noise  
This is a normal result of the curing process of the paint and logs. Glass should be cleaned within  
3 to 4 hours of initial burning. A non-abrasive cleaner such as gas appliance glass cleaner may be  
necessary. See your dealer.  
Noise is caused by metal expanding and contracting as it heats up and cools down, similar to the  
sound produced by a furnace or heating duct. This noise does not affect the operation or longevity  
of the appliance.  
Is it normal to see the pilot  
flame burn continually?  
In an IntelliFire Plus™ ignition system (IPI), the pilot flame should turn off when appliance is  
turned off. Some optional control systems available with IPI models may allow pilot flame to  
remain lit. In a standing pilot system the pilot will always stay on.  
Heatilator • Novus NNXT • 4055-879 • Rev. o • 2/12  
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13  
Maintenance and Service  
3
Doors, Surrounds, Fronts  
Frequency: Annually  
Any safety screen or guard removed for servicing must be  
replaced prior to operating the fireplace.  
By: Homeowner  
When properly maintained, your fireplace will give you  
many years of trouble-free service. We recommend an-  
nual service by a qualified service technician.  
Tools needed: Protective gloves, stable work surface  
•
•
Assess condition of screen and replace as necessary.  
Inspect for scratches, dents or other damage and repair  
as necessary.  
A. Maintenance Tasks-Homeowner  
Installation and repair should be done by a qualified  
service technician only. The fireplace should be inspect-  
ed before use and at least annually by a professional  
service person.  
•
•
Check that louvers are not blocked.  
Vacuum and dust surfaces.  
Remote Control  
Frequency: Seasonally  
By: Homeowner  
The following tasks may be performed annually by the  
homeowner. If you are uncomfortable performing any of  
the listed tasks, please call your dealer for a service ap-  
pointment.  
Tools needed: Replacement batteries and remote control  
instructions.  
More frequent cleaning may be required due to lint from  
carpeting or other factors. Control compartment, burner  
and circulating air passageway of the fireplace must be  
kept clean.  
•
•
Locate remote control transmitter and receiver.  
Verify operation of remote. Refer to remote control  
operation instructions for proper calibration and setup  
procedure.  
CAUTION! Risk of Burns! The fireplace should be  
turned off and cooled before servicing.  
•
•
Place batteries as needed in remote transmitters and  
battery-powered receivers.  
Place remote control out of reach of children.  
Glass Cleaning  
Frequency: Seasonally  
By: Homeowner  
If not using your fireplace for an extended period of time  
(summer months, vacations/trips, etc), to prevent unin-  
tended operation:  
Tools Needed: Protective gloves, glass cleaner, drop  
cloth and a stable work surface.  
•
•
Remove batteries from remote controls.  
Unplug 6-volt power supply on IPI models.  
CAUTION! Handle fixed glass assembly with care.  
Glass is breakable.  
•
•
•
•
Avoid striking, scratching or slamming glass  
Avoid abrasive cleaners  
DO NOT clean glass while it is hot  
Prepare a work area large enough to accommodate fixed  
glass assembly and door frame by placing a drop cloth  
on a flat, stable surface.  
Venting  
Frequency: Seasonally  
By: Homeowner  
Tools needed: Protective gloves and safety glasses.  
•
Inspect venting and termination cap for blockage or  
obstruction such plants, bird nests, leaves, snow, debris,  
etc.  
Note: Fixed glass assembly and gasketing may have  
residue that can stain carpeting or floor surfaces.  
•
•
•
Remove door or decorative front from fireplace and set  
aside on work surface.  
See Section 15.D. for instructions to remove fixed glass  
assembly.  
Clean glass with a non-abrasive commercially available  
cleaner.  
•
Verify termination cap clearance to subsequent  
construction (building additions, decks, fences, or  
sheds). See Section 6.  
Inspect for corrosion or separation.  
Verify weather stripping, sealing and flashing remains  
intact.  
•
•
- Light deposits: Use a soft cloth with soap and water  
- Heavy deposits: Use commercial fireplace glass cleaner  
(consult with your dealer)  
•
Inspect draft shield to verify it is not damaged or  
missing.  
•
Carefully set fixed glass assembly in place on fireplace.  
Hold glass in place with one hand and secure glass  
latches with the other hand.  
•
Reinstall door or decorative front.  
14  
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Burner Ignition and Operation  
Frequency: Annually  
B. Maintenance Tasks-Qualified Service  
Technician  
The following tasks must be performed by a qualified  
service technician.  
By: Qualified Service Technician  
Tools needed: Protective gloves, vacuum cleaner, whisk  
broom, flashlight, voltmeter, indexed drill bit set, and a  
manometer.  
Gasket Seal and Glass Assembly Inspection  
Frequency: Annually  
•
•
•
Verify burner is properly secured and aligned with pilot  
or igniter.  
By: Qualified Service Technician  
Tools needed: Protective gloves, drop cloth and a stable  
work surface.  
Clean off burner top, inspect for plugged ports, corrosion  
or deterioration. Replace burner if necessary.  
Replace rockwool with new dime-size pieces. DO NOT  
block ports or obstruct lighting paths. Refer to Section  
15 for proper rockwool placement.  
Verify batteries have been removed from battery back-  
up IPI systems to prevent premature battery failure or  
leaking.  
Check for smooth lighting and ignition carryover to all  
ports. Verify that there is no ignition delay.  
Inspect for lifting or other flame problems.  
Verify air shutter setting is correct. See Section 15 for  
required air shutter setting. Verify air shutter is clear of  
dust and debris.  
Inspect orifice for soot, dirt and corrosion. Verify orifice  
size is correct. See Service Parts List for proper orifice  
sizing.  
•
•
Inspect gasket seal and its condition.  
Inspect fixed glass assembly for scratches and nicks  
that can lead to breakage when exposed to heat.  
Confirm there is no damage to glass or glass frame.  
Replace as necessary.  
Verify that fixed glass assembly is properly retained and  
attachment components are intact and not damaged.  
Replace as necessary.  
•
•
•
•
•
•
Logs  
Frequency: Annually  
By: Qualified Service Technician  
Tools needed: Protective gloves.  
•
•
Inspect for damaged or missing logs. Replace as  
necessary. Refer to Section 15 for log placement  
instructions.  
•
•
Verify manifold and inlet pressures. Adjust regulator as  
required.  
Inspect pilot flame pattern and strength. See Figure 3.1  
for proper pilot flame pattern. Clean or replace orifice  
spud as necessary.  
•
Verify correct log placement and no flame impingement  
causing sooting. Correct as necessary.  
•
•
Inspect thermocouple/thermopile or IPI flame sensing  
rod for soot, corrosion and deterioration. Polish with fine  
steel wool or replace as required.  
Verify thermocouple/thermopile or IPI millivolt output.  
Replace as necessary.  
Firebox  
Frequency: Annually  
By: Qualified Service Technician  
Tools needed: Protective gloves, sandpaper, steel wool,  
cloths, mineral spirits, primer and touch-up paint.  
•
Inspect for paint condition, warped surfaces, corrosion  
or perforation. Sand and repaint as necessary.  
Replace fireplace if firebox has been perforated.  
•
Control Compartment and Firebox Top  
Frequency: Annually  
By: Qualified Service Technician  
Tools needed: Protective gloves, vacuum cleaner, dust  
cloths  
•
Vacuum and wipe out dust, cobwebs, debris or pet hair.  
Use caution when cleaning these areas. Screw tips that  
have penetrated the sheet metal are sharp and should  
be avoided.  
•
•
Remove all foreign objects.  
Verify unobstructed air circulation.  
Figure 3.1 IPI Pilot Flame Patterns  
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15  
Installer Guide  
Getting Started  
4
A. Typical Appliance System  
NOTICE: Illustrations and photos reflect typical installations and are for design purposes only. Illustrations/diagrams are not  
drawn to scale. Actual product may vary from pictures in manual  
Note: Dual venting configurations  
ARE NOT allowed. Appliance  
MUST be vented EITHER vertically  
OR horizontally.  
Vertical Termination Cap  
(Section 10)  
NOTE: An installation will have either a  
vertical termination or a horizontal  
termination. It will not have both (as shown).  
Noncombustible Roof Flashing  
maintains minimum clearance  
around pipe (Section 10)  
Storm Collar  
(Section 10)  
Vent Pipe penetrates roof preferably  
without affecting roof rafters  
Attic Insulation Shield (not shown) must be used  
here to keep insulation away from vent pipe if  
attic is insulated (Section 8)  
Vent Pipe (Section 8)  
Ceiling Firestop on  
floor of attic (Section 8)  
Horizontal Termination Cap  
(Section 10)  
Framing headed off in  
ceiling joists (Section 8)  
Framing/Header  
(Section 5)  
Optional Wall Switch  
(Section 12)  
Mantel & Mantel Leg  
(Section 5 & 14)  
Surround (Section 14)  
Hearth Extension  
(Not required)  
Gas Line  
(Section 12)  
Figure 4.1 Typical System  
16  
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B. Design and Installation Considerations  
D. Inspect Appliance and Components  
Heatilator direct vent gas appliances are designed to op-  
erate with all combustion air siphoned from outside of the  
building and all exhaust gases expelled to the outside. No  
additional outside air source is required.  
•
•
•
•
•
Carefully remove the appliance and components from  
the packaging.  
The vent system components and decorative doors and  
fronts may be shipped in separate packages.  
If packaged separately, the log set and appliance grate  
must be installed.  
Report to your dealer any parts damaged in shipment,  
particularly the condition of the glass.  
Read all of the instructions before starting the installation.  
Follow these instructions carefully during the installation  
to ensure maximum safety and benefit.  
Installation MUST comply with local, regional, state and  
national codes and regulations. Consult insurance carrier,  
local building inspector, fire officials or authorities having  
jurisdiction over restrictions, installation inspection and  
permits.  
Before installing, determine the following:  
• Where the appliance is to be installed.  
• The vent system configuration to be used.  
• Gas supply piping.  
WARNING! Risk of Fire or Explosion! Damaged parts  
could impair safe operation. DO NOT install damaged, in-  
complete or substitute components. Keep appliance dry.  
• Electrical wiring requirements.  
• Framing and finishing details.  
Hearth & Home Technologies disclaims any responsibility for,  
and the warranty will be voided by, the following actions:  
• Whether optional accessories—devices such as a fan,  
wall switch, or remote control—are desired.  
• Installation and use of any damaged appliance or vent system  
component.  
• Modification of the appliance or vent system.  
Improper installation, adjustment, alteration, service or  
maintenance can cause injury or property damage. For  
assistance or additional information, consult a qualified  
service technician, service agency or your dealer.  
• Installation other than as instructed by Hearth & Home  
Technologies.  
• Improper positioning of the gas logs or the glass door.  
• Installation and/or use of any component part not approved  
by Hearth & Home Technologies.  
C. Tools and Supplies Needed  
Before beginning the installation be sure that the following  
tools and building supplies are available.  
Any such action may cause a fire hazard.  
Tape measure  
Pliers  
Framing material  
WARNING! Risk of Fire, Explosion or Electric Shock!  
DO NOT use this appliance if any part has been under wa-  
ter. Call a qualified service technician to inspect the appli-  
ance and to replace any part of the control system and/or  
gas control which has been under water.  
Non-corrosive leak check solution  
Phillips screwdriver  
Framing square  
Hammer  
Gloves  
Voltmeter  
Plumb line  
Level  
Electric drill and bits (1/4 in.)  
Safety glasses  
Reciprocating saw  
Manometer  
Flat blade screwdriver  
1/2 - 3/4 in. length, #6 or #8 Self-drilling screws  
Caulking material (300ºF minimum continuous exposure  
rating)  
One 1/4 in. female connection (for optional fan).  
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17  
Framing and Clearances  
5
NOTICE: Illustrations reflect typical installations and are  
FOR DESIGN PURPOSES ONLY. Illustrations/diagrams  
are not drawn to scale. Actual installation may vary due to  
individual design preference.  
A. Select Appliance Location  
When selecting a location for the appliance it is important  
to consider the required clearances to walls (see Figure  
5.1).  
WARNING! Risk of Fire or Burns! Provide adequate  
clearance around air openings and for service access. Due  
to high temperatures, the appliance should be located out  
of traffic and away from furniture and draperies.  
1 in. (25 mm)  
D
min. pipe to  
combustibles  
B
1/2 in. (13 mm) min.  
C
1/2 in. (13 mm)  
appliance to  
min. appliance  
to combustibles  
combustibles  
A
Drywall  
48 in.  
(1219 mm)  
maximum  
G
B
Alcove  
Installation  
D
A
A
Rear vent  
One 45° elbow  
Horiz Term  
Top Vent  
One 90° elbow  
Horiz Term  
In addition to these framing dimensions, also reference the  
following sections:  
• Clearances and Mantel Projections (Sections 3.C. and 3.D.)  
• Vent Clearances and Framing (Section 6)  
No elbows  
Rear Vent  
Rear Vent  
One 90° elbow  
Vert Term  
Horiz Term  
A
Two 90° elbows  
Horiz Term  
A
A
E
F
C
1 in. (25 mm)  
min. pipe to  
combustibles  
F
E
Model  
A
B
C
D
E
F
G
in.  
mm  
in.  
39  
991  
42  
35-1/2  
902  
37-5/8  
956  
19-5/8  
498  
19-5/8  
498  
43-3/8  
1102  
43-3/8  
1102  
47  
1194  
47  
53-1/4  
1353  
53-1/4  
1353  
40  
1016  
43  
NNXT3933  
NNXT4236  
mm  
1067  
1194  
1092  
Figure 5.1 Appliance Locations  
18  
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Walls, ceiling, base plate and cantilever floor of the chase  
should be insulated. Vapor and air infiltration barriers  
should be installed in the chase as per regional codes for  
the rest of the home. Additionally, in regions where cold  
air infiltration may be an issue, the inside surfaces may  
be sheetrocked and taped for maximum air tightness.  
B. Construct the Appliance Chase  
A chase is a vertical box-like structure built to enclose the  
gas appliance and/or its vent system. In cooler climates  
the vent should enclosed inside the chase.  
NOTICE: Treatment of ceiling firestops and wall shield  
firestops and construction of the chase may vary with the  
type of building. These instructions are not substitutes for the  
requirements of local building codes. Therefore, you MUST  
check local building codes to determine the requirements  
to these steps.  
To further prevent drafts, the wall shield and ceiling  
firestops should be caulked with caulk with a minimum of  
300ºF continuous exposure rating to seal gaps. Gas line  
holes and other openings should be caulked with caulk  
with a minimum of 300ºF continuous exposure rating or  
stuffed with unfaced insulation. If the appliance is being  
installed on a cement slab, a layer of plywood may be  
placed underneath to prevent conducting cold up into the  
room.  
Chases should be constructed in the manner of all out-  
side walls of the home to prevent cold air drafting prob-  
lems. The chase should not break the outside building  
envelope in any manner.  
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19  
C. Clearances  
•
•
Insulation and other materials must be secured to  
prevent accidental contact.  
NOTICE: Install appliance on hard metal or wood surfaces  
extending full width and depth. DO NOT install directly on  
carpeting, vinyl, tile or any combustible material other than  
wood.  
The chase must be properly blocked to prevent blown  
insulation or other combustibles from entering and  
making contact with fi replace or chimney.  
Failure to maintain airspace may cause overheating and  
a fire.  
WARNING! Risk of Fire! Maintain specified air space  
clearances to appliance and vent pipe:  
•
1/2 in.  
(13 mm)  
Note: If the inside of the framed cavity is to be  
finished, the framing dimensions must include the  
finished surface. If drywall is to be attached to the  
rear wall, the depth must be measured from the  
drywall surface.  
1/2 in.  
(13 mm)  
Drywall  
0 in.  
Combustible flooring may be installed next  
to the front of the appliance.  
D
Clearance to Ceiling  
30 in. (762 mm)  
0 in. TO LEVEL  
OF STANDOFFS  
B
36 in.  
(914 mm)  
C
0 in.  
A
A
B
C
D
D
Rough Opening  
(Width)  
Rough Opening  
(Height)  
Rough Opening  
(Depth)  
Rough Opening  
(DVP Pipe)  
Rough Opening  
(SLP Pipe)  
Model  
in.  
mm  
in.  
mm  
in.  
mm  
in.  
mm  
in.  
mm  
NNXT3933  
NNXT4236  
39  
42  
991  
1067  
34 7/8  
34 7/8  
886  
886  
19 5/8  
19 5/8  
498  
498  
10  
10  
254  
254  
9
9
229  
229  
Figure 5.2 Clearances to Combustibles  
20  
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D. Mantel and Wall Projections  
WARNING! Risk of Fire! Comply with all minimum clear-  
ances to combustibles as specified. Framing or finishing  
material closer than the minimums listed must be construct-  
ed entirely of non-combustible materials (i.e., steel studs,  
concrete board, etc).  
Mantels  
Note: All  
measurements  
in inches.  
30 in. minimum  
to ceiling  
18  
17  
16  
16  
15  
15-1/4  
14  
14-1/2  
13-3/4  
13  
12  
13  
11  
12-1/4  
11-1/2  
10-3/4  
10  
10  
9
8
7
6
9-1/4  
8-1/2  
5
7-3/4  
4
7
3
6-1/4  
5-1/2  
5
Measured from top of hood (in inches)  
Figure 5.3 Minimum Vertical and Maximum Horizontal Dimensions  
Mantel Legs or Wall Projections  
Top of  
Appliance  
Drywall  
A
B
Mantel Leg or  
Perpendicular Wall  
A 1 in. (25 mm) min.  
to perpendicular wall  
B 3-1/2 in. (89 mm) min.  
from fireplace opening  
to perpendicular wall  
Figure 5.4 Mantel Leg or Wall Projections (Acceptable on both sides of opening)  
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21  
Termination Locations  
6
A. Vent Termination Minimum Clearances  
WARNING  
A
B
6 in. (minimum) up to 20 in.  
152 mm/508 mm  
18 in. minimum  
457 mm  
Fire Risk.  
Maintain vent clearance to combustibles as  
specified.  
20 in. and over  
0 in. minimum  
• DO NOT pack air space with insulation or other  
materials.  
Gas, Wood or Fuel Oil  
Termination Cap  
Failure to keep insulation or other materials away  
from vent pipe may cause overheating and fire.  
B
Horizontal  
overhang  
A *  
20 in.  
24 in. min.  
(610 mm)  
(508 mm)  
Vertical  
wall  
Gas  
Termination  
Cap **  
Lowest  
Discharge  
Opening  
Termination  
Cap  
X
Storm Collar  
12  
Roof  
Flashing  
Roof Pitch  
is X / 12  
*
If using decorative cap cover(s), this distance may need to be  
increased. Refer to the installation instructions supplied with the  
decorative cap cover.  
H (min.) - Minimum height  
from roof to lowest  
discharge opening.  
In a staggered installation with both gas and wood or fuel oil  
terminations, the wood or fuel oil termination cap must be  
higher than the gas termination cap.  
**  
Figure 6.2 Multiple Termination Caps  
Roof Pitch  
H (Min.) Ft.  
Roof Pitch  
H (Min.) Ft.  
Flat to 6/12  
1.0*  
Over 11/12 to 12/12  
Over 12/12 to 14/12  
Over 14/12 to 16/12  
Over 16/12 to 18/12  
Over 18/12 to 20/12  
Over 20/12 to 21/12  
4.0  
5.0  
6.0  
7.0  
7.5  
8.0  
Over 6/12 to 7/12  
Over 7/12 to 8/12  
Over 8/12 to 9/12  
Over 9/12 to 10/12  
1.25*  
1.5*  
2.0*  
2.5  
Over 10/12 to 11/12 3.25  
* 3 ft. minimum in snow regions  
Figure 6.1 Minimum Height From Roof To Lowest Discharge  
Opening  
22  
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H
D
O
E
N
V
V
C
B
L
B
B
V
Fixed  
Closed  
G
V
V
V
Fixed  
Closed  
Openable  
V
V
F
B
J
X
M
B
V
V
K
X
I
A
V
A
GAS METER  
V
TERMINATION CAP  
X
AIR SUPPLY INLET  
RESTRICTION ZONE  
(TERMINATION NOT  
ALLOWED)  
Measure vertical clearances  
from this surface  
Q
P
W
V
S
R
U
U
Electrical  
Service  
V
V
T
D*  
V
Covered Alcove  
Applications  
Measure horizontal clearances  
from this surface.  
Clearances to Electrical Service  
Dimension Descriptions  
P 6” - Non-vinyl sidewalls  
12” – Vinyl sidewalls  
A Clearance above the ground, a veranda, porch, deck or balcony - 12 in.  
(30 cm) minimum. *  
Q 18” – Non-vinyl soffit and overhang  
42” – Vinyl soffit and overhang  
R 8 ft.  
B Clearance to window or door that may be opened – 10,000 BTUs or less,  
6 in. (15 cm) minimum; 10,000-50,000 BTUs, 9 in. (23 cm) minimum;  
over 50,000 BTUs, 12 in. (30 cm) minimum. *  
C Clearance to permanently closed window – 12 in. (30 cm) minimum  
- recommended to prevent condensation on window.  
S min  
T max  
1 cap  
2 caps  
3 ft  
6 ft  
2 x S actual  
1 x S actual  
2/3 x S actual  
1/2 x S actual  
D Vertical clearance to ventilated soffit located above the termination within  
a horizontal distance of 2 ft (60 cm) from the centerline of the termination  
– 18 in. (46 cm) minimum. **  
3 caps  
9 ft  
E Vertical clearance to unventilated soffit - 12 in. (30 cm) minimum. **  
F Clearance to outside corner - 6 in. (15 cm) minimum.  
G Clearance to inside corner - 6 in. (15 cm) minimum.  
4 caps  
12 ft  
S
min = # term caps x 3  
T max = (2/# term caps) x S (actual)  
H Not to be installed above a meter/regulator assembly within 3 ft (90 cm)  
horizontally* from the center line of the regulator (Canada only)  
U 6” min. – Clearance from sides of electrical service.  
W 12” min. – Clearance above electrical service.  
I
Clearance to service regulator vent outlet – 3 ft (.91 m) U.S. minimum  
and 3 ft (.91 m) Canada minimum. *  
* As specified in CGA B149 Installation Codes  
J Clearance to non-mechanical air supply inlet into building or the  
combustion air inlet to any other appliance – 9” (23 cm) U.S. minimum  
and 12 in. (30 cm) Canada minimum. *  
Note: Local codes or regulations may require different clearances.  
** Clearance required to vinyl soffit material – 30 in. (76 cm) minimum.  
K Clearance to mechanical air supply inlet - 3 ft (.91 m) U.S. minimum and  
6 ft (1.8 m) Canada minimum. *  
Note: Location of the vent termination must not interfere with access to  
the electrical service.  
L Clearance above a paved sidewalk or paved driveway located on public  
property - 7 ft (2.1 m) minimum.  
A vent may not terminate directly above a sidewalk or paved driveway  
which is located between two single family dwellings and serves both  
dwellings.  
WARNING!  
In the U.S.: Vent system termination is NOT permitted in screened  
porches. You must follow side wall, overhang and ground clearances as  
stated in the instructions.  
M Clearance under veranda, porch, deck or balcony - 12 in. (30 cm)  
minimum. * Recommended 30 in. (76 cm) for vinyl or plastic.  
Only permitted if veranda, porch, deck or balcony is fully open on a  
minimum of 2 sides beneath the floor. *  
In Canada: Vent system termination is NOT permitted in screened  
porches. Vent system termination is permitted in porch areas with two  
or more sides open. You must follow all side wall, overhang and ground  
clearances as stated in the instructions.  
N Vertical clearance between two horizontal termination caps – 12 in. (30  
cm) minimum.  
Hearth & Home Technologies assumes no responsibility for the improper  
performance of the appliance when the venting system does not meet  
these requirements.  
O Horizontal clearance between two horizontal termination caps – 12 in.  
(30 cm) minimum.  
Figure 6.3 Minimum Clearances for Termination  
CAUTION: IF EXTERIOR WALLS ARE FINISHED WITH VINYL SIDING, IT IS SUGGESTED THAT A VINYL PROTECTOR KIT BE INSTALLED.  
Heatilator • Novus NNXT • 4055-879 • Rev. o • 2/12  
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23  
Vent Information and Diagrams  
7
A. Approved Pipe  
This appliance is approved for use with Hearth & Home  
Technologies DVP and/or SLP venting systems. Refer to  
Section 17.B. for vent component information.  
Vertical  
DO NOT mix pipe, fittings or joining methods from differ-  
ent manufacturers.  
The pipe is tested to be run inside an enclosed wall.  
There is no requirement for inspection openings at each  
joint within the wall.  
8-1/2 in.  
WARNING! Risk of Fire or Asphyxiation. This appliance  
requires a separate vent. DO NOT vent to a pipe serving a  
separate solid fuel burning appliance.  
Horizontal  
B. Vent Table Key  
The abbreviations listed in this vent table key are used in  
the vent diagrams.  
On 45° runs, 1 ft (.3 m) of diagonal is equal to 8-1/2 in. (216  
mm) horizontal run and 8-1/2 in. (216 mm) vertical run.  
Figure 7.1 Using Two 45° Elbows  
Symbol  
Description  
First section (closest to appliance) of vertical length  
V1  
Effective Height/Length  
Second section of vertical length  
V2  
H1  
H2  
mm  
Pipe  
DVP4  
DVP6  
inches  
4
6
102  
152  
First section (closest to appliance) of horizontal length  
Subsequent sections of horizontal length  
Effective  
Height/Length  
DVP12  
DVP24  
DVP36  
DVP48  
DVP6A  
DVP12A  
12  
24  
36  
48  
3 - 6  
3 - 12  
305  
610  
914  
1219  
76 - 152  
76 - 305  
C. Use of Elbows  
Diagonal runs have both vertical and horizontal vent as-  
pects when calculating the effects. Use the rise for the  
vertical aspect and the run for the horizontal aspect (see  
Figure 7.1).  
DVP Pipe  
(see chart)  
Two 45º elbows may be used in place of one 90º elbow.  
On 45º runs, one foot of diagonal is equal to 8-1/2 in. (216  
mm) horizontal run and 8-1/2 in. (216 mm) vertical run. A  
length of straight pipe is allowed between two 45º elbows  
(see Figure 7.1).  
Effective Height/Length  
mm  
Pipe  
SLP4  
SLP6  
inches  
4
6
102  
152  
Effective  
Height/Length  
SLP12  
SLP24  
SLP36  
SLP48  
SLP6A  
SLP12A  
12  
24  
36  
48  
2 - 6  
2 - 12  
305  
610  
914  
1219  
51 - 152  
51 - 305  
D. Measuring Standards  
Vertical and horizontal measurements listed in the vent  
diagrams were made using the following standards.  
SLP Pipe  
(see chart)  
•
Pipe measurements are shown using the effective length  
of pipe (see Figure 7.2).  
Figure 7.2 Pipe Effective Length  
•
Horizontal terminations are measured to the outside  
mounting surface (flange of termination cap) (see  
Figure 6.4.).  
•
•
Vertical terminations are measured to bottom of  
termination cap.  
Horizontal pipe installed level with no rise.  
24  
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E. Vent Diagrams  
Note: The NNXT series appliances can adapt to  
SLP series vent pipe when venting off the top of  
the appliance. You must use a DVP-SLP24 adapter  
which can only be attached to the appliance starting  
collar.  
To replace the first starter elbow with two 45° elbows,  
refer to Figure 7.4. All other 90° elbows can be replaced  
with two 45° elbows.  
General Rules:  
When looking at horizontal termination diagrams, the  
adapter is not counted as part of the minimum vertical  
•
•
•
SUBTRACT 3 ft. from the total H measurement for each  
90° elbow installed horizontally.  
SUBTRACT 1-1/2 ft. from the total H measurement for  
each 45° elbow installed horizontally.  
A maximum of three 90° elbows (or six 45° elbows)  
may be used in any vent configuration. Some elbows  
may be installed horizontally. See Figure 7.8.  
Elbows may be placed back to back anywhere in the  
system as long as the first 90° elbow is a starter elbow  
except as shown in Figure 7.4.  
(V min.) requirements.  
1
Whether horizontal or vertical termination, the adapter is  
counted as part of the maximum vertical limitations.  
All venting rules for the vent run must still be followed.  
HORIZONTAL EXAMPLE  
•
•
•
•
When penetrating a combustible wall, a wall shield  
firestop must be installed.  
When penetrating a combustible ceiling, a ceiling  
firestop must be installed.  
Horizontal runs of vent do not require vertical rise;  
horizontal runs may be level.  
V1 = 1 ft.  
H1 = 11 ft.  
max.  
DVP  
1. Top Vent - Horizontal Termination  
One Elbow  
V1 = 1 ft.  
H1 = 11 ft.  
max  
DVP-SLP24  
V1  
H1  
SLP  
VERTICAL EXAMPLE  
V1 min.  
V1 max.  
H1 max.  
ft  
0
m
ft  
-
m
ft  
m
0.00  
-
-
-
-
-
-
2
0.61  
1.22  
1.83  
3.35  
5.18  
5.18  
5.18  
5.18  
0.33 0.10  
-
4
0.5  
1
0.15  
0.30  
0.46  
0.61  
-
6
DVP-SLP24  
Adapter  
12 ft (3.66 m) min.  
60 ft (18.29 m) max.  
12 ft (3.66 m) min.  
60 ft (18.29 m) max.  
-
11  
17  
17  
1.5  
2
-
-
DVP  
SLP  
25  
23  
7.62 17  
7.01 17  
You may install the elbow directly on top  
of the appliance (DVP only).  
DVP  
SLP  
Figure 7.3  
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25  
1. Top Vent - Horizontal Termination - (continued)  
Two 45° Elbows replacing One 90° Elbow  
4 ft min.  
(1.22 m)  
17 ft max.  
(5.18 m)  
Figure 7.4  
V1 min.  
V1 max.  
H1+H2 max. H1+H2+H3 max.  
Two Elbows  
ft  
m
ft  
m
ft  
m
ft  
m
0.5  
1
0.15  
0.30  
0.46  
0.61  
-
-
6
1.83  
3.35  
5.18  
5.18  
5.18  
5.18  
-
-
-
-
-
11  
17  
17  
17  
17  
11  
17  
17  
17  
17  
3.35  
5.18  
5.18  
5.18  
5.18  
1.5  
2
-
-
-
DVP  
SLP  
25  
23  
7.62  
7.01  
Installed  
Vertically  
H3  
Installed  
Horizontally  
V1  
H1  
H2  
H2  
Figure 7.5  
26  
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1. Top Vent - Horizontal Termination - (continued)  
V1 min.  
V1 + V2 max. H1+H2 max.  
Three Elbows  
ft  
m
ft  
m
ft  
m
DVP  
SLP  
1
1
0.30  
0.30  
24  
22  
7.32  
6.71  
17  
17  
5.18  
5.18  
Installed  
Vertically  
H2  
V2  
V1  
H1  
Figure 7.6  
2. Top Vent - Vertical Termination  
No Elbow  
Install Top Vent Flue Visor - No Elbow Configura-  
tions  
•
Remove the refractory retainer from one side  
refractory.  
Remove lower  
refractory retainer  
12 ft (3.66 m) min.  
60 ft (18.29 m) max.  
Figure 7.7a Remove Refractory Retainer from one Side  
Figure 7.7  
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27  
•
Remove the side refractory:  
•
•
Remove two screws from firebox top.  
Using these screws and the same holes, install the top  
vent flue baffle.  
-
-
Gently raise the front of the top refractory.  
Lift the side piece up slightly and then out.  
-
The flue baffle will be turned to install below the level  
of the firebox top for 12-30 ft vertical runs of vent.  
See Figure 7.7d.  
Lift top refractory  
and hold in place  
-
The flue baffle will be turned to install inside the flue  
for vertical vent runs of 31-60 ft. See Figure 7.7e.  
Pull side refractory  
forward & out  
Place flue visor,  
reinsert screws  
Figure 7.7b Remove Side Refractory  
•
Remove top refractory:  
-
-
Lower towards side removed in previous step.  
Gently twist out.  
Figure 7.7d 12-30 ft Vertical Run  
Lower & twist; pull out  
Place flue visor,  
reinsert screws  
Figure 7.7c Remove Top Refractory  
Figure 7.7e 31-60 ft Vertical Run  
•
Reinstall Refractory:  
-
-
Replace top refractory.  
Lift top refractory and slide side refractory back into  
position.  
-
Replace bottom retainer.  
28  
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2. Top Vent - Vertical Termination - (continued)  
Three Elbows  
Maximum horizontal run is  
100% of vertical, but cannot  
exceed 17 ft (5.18 m)  
12 ft (3.66 m) min.  
60 ft (18.29 m) max.  
Figure 7.8  
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29  
2. Top Vent - Vertical Termination - (continued)  
Two Elbows  
12 ft (3.66 m) min.  
60 ft (18.29 m) max.  
Maximum horizontal  
run is 100% of  
vertical, but cannot  
exceed 17 ft (5.18 m)  
Figure 7.9  
30  
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3. Rear Vent - Horizontal Termination  
No Elbow  
18 in. (457 mm) max.  
Figure 7.10  
One 45° Elbow  
18 in. (457 mm) max.  
Figure 7.11  
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31  
3. Rear Vent - Horizontal Termination - (continued)  
H1 max.  
V1 min.  
H1+H2 max.  
Two Elbows  
ft  
0
2
4
6
8
8
8
m
ft  
1
1
2
3
4
5
6
m
ft  
m
0
0.30  
0.30  
0.61  
0.91  
1.22  
1.52  
1.83  
3
3
0.91  
0.91  
1.83  
2.74  
3.66  
4.57  
5.49  
0.61  
1.22  
1.83  
2.44  
2.44  
2.44  
6
9
12  
15  
18  
V1  
H2  
H1  
Figure 7.12  
H1 max.  
V1 min.  
H1+H2+H3 max.  
Three Elbows  
ft  
0
2
4
6
8
8
8
m
ft  
1
1
2
3
4
5
6
m
ft  
3
m
0
0.30  
0.30  
0.61  
0.91  
1.22  
1.52  
1.83  
0.91  
0.91  
1.83  
2.74  
3.66  
4.57  
5.49  
0.61  
1.22  
1.83  
2.44  
2.44  
2.44  
3
6
9
12  
15  
18  
Installed  
Horizontally  
V1  
H2  
H3  
H1  
Figure 7.13  
32  
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4. Rear Vent - Vertical Termination  
One Elbow  
0 min.  
6 ft (1.83 m) max.  
12 ft (3.66 m) min.  
60 ft (18.29 m) max.  
Figure 7.14  
Two Elbows  
0 min.  
6 ft (1.83 m) max.  
12 ft (3.66 m) min.  
60 ft (18.29 m) max.  
Maximum horizontal  
run is 100% of  
vertical, but cannot  
exceed 18 ft (5.49 m)  
Figure 7.15  
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33  
4. Rear Vent - Vertical Termination - (continued)  
Three Elbows  
0 min.  
6 ft (1.83 m) max.  
12 ft (3.66 m) min.  
60 ft (18.29 m) max.  
Maximum horizontal run is  
100% of vertical, but can-  
not exceed 18 ft (5.49 m)  
Figure 7.16  
34  
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Vent Clearances and Framing  
8
A. Pipe Clearances to Combustibles  
WARNING! Risk of Fire! Maintain air space clearance to  
vent. DO NOT pack insulation or other combustibles:  
B. Wall Penetration Framing  
Combustible Wall Penetration  
Whenever a combustible wall is penetrated, you must  
frame a hole for the wall shield firestop(s). The wall shield  
firestop maintains minimum clearances and prevents cold  
air infiltration.  
•
•
•
Between ceiling firestops  
Between wall shield firestops  
Around vent system  
Failure to keep insulation or other material away from  
vent pipe may cause over heating and fire.  
•
•
•
The opening must be framed on all four sides using the  
same size framing materials as those used in the wall  
construction.  
SLP pipe -Awall shield firestop must be placed on each  
side of an interior wall. A minimum 1 1/2 in. (38 mm)  
overlap of attached heat shields must be maintained.  
DVP pipe - A wall shield firestop is required on one side  
only on interior walls. If your local inspector requires a  
wall shield firestop on both sides, then both wall shield  
firestops must have a heat shield attached to them.  
See Section 10.L. for information for regarding the  
installation of a horizontal termination cap.  
Note: Heat shields MUST overlap by a minimum of 1-1/2 in. (38 mm).  
• DVP heat shield - designed to be used on a wall 4 in. to 7-1/4 in. (102 mm to 184  
mm) thick.  
•
If wall thickness is less than 4 in. the existing heat shields must be field trimmed.  
If wall thickness is greater than 7-1/4 in. an extended heat shield will be required.  
• SLP heat shield - designed to be used on a wall 4-3/8 in. to 7-5/8 in. (111 mm to 194  
mm thick).  
•
If wall thickness is less than 4-3/8 the existing heat shields must be field trimmed.  
If wall thickness is greater than 7-5/8 in. an extended heat shield will be required.  
(DVP Pipe Shown)  
•
Heat  
Shield  
3 in. (76 mm)  
top clearance *  
Heat  
Non-Combustible Wall Penetration  
3 in. (76 mm)  
top clearance  
If the hole being penetrated is surrounded by non-combus-  
tible materials such as concrete, a hole with diameter one  
inch greater than the pipe is acceptable.  
Shield  
1 in. (25 mm)  
clearance around  
vertical sections  
Whenever a non-combustible wall is penetrated, the wall  
shield firestop is only required on one side and no heat  
shield is necessary.  
1 in. (25 mm)  
clearance  
bottom & sides  
Wall  
Shield  
Firestop  
WALL  
10 in.  
Vent framing hole.  
3 in. (76 mm)  
top clearance *  
Heat  
Shield  
DO NOT PACK WITH  
INSULATION OR  
OTHER MATERIAL.  
12 in.  
Heat  
Shield  
1 in. (25 mm)  
clearance  
bottom & sides  
The center of the  
framing hole is  
1 in. (25mm) above  
the center of the  
horizontal vent pipe.  
Wall  
Shield  
Firestop  
WALL  
* When using SLP pipe, minimum clearances from the vent pipe to combustible materi-  
A*  
B*  
als at inside wall firestops are:  
Top: 2-1/2 in. (64 mm)  
Bottom: 1/2 in. (13 mm)  
Sides: 1 in. (25 mm)  
Framing should be  
constructed of 2 X 4  
lumber or heavier.  
Figure 8.1 Horizontal Venting Clearances To Combustible  
Materials  
* To center of pipe.  
A
B
Top Vent Rear Vent  
Model  
in.  
39-1/2  
1003  
23-1/2  
597  
NNXT4236  
NNXT3933  
mm  
Figure 8.2 Wall Penetration  
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35  
C. Install the Ceiling Firestop  
A ceiling firestop MUST be used between  
floors and attics.  
•
DVP pipe only - Frame an opening 10 in.  
by 10 in. (254 mm by 254 mm) whenever  
the vent penetrates a ceiling/floor (see  
Figure 8.3).  
ATTIC ABOVE  
•
SLP pipe only - Frame opening 9 in. x  
9 in. (229 mm x 229 mm) whenever the  
vent penetrates a ceiling/floor (see Figure  
8.3).  
A
•
•
Frame the area with the same sized lumber  
as used in ceiling/floor joist.  
The ceiling firestop may be installed above  
or below the ceiling joists when installed  
with a attic insulation shield. It must be  
under joists between floors that are not  
insulated. Refer to Figure 8.4.  
•
Secure with three fasteners on each side.  
A
WARNING! Risk of Fire! DO NOT pack insu-  
lation around the vent. Insulation must be kept  
back from the pipe to prevent overheating.  
A
PIPE  
DVP  
SLP  
10 in. (254 mm)  
9 in. (229 mm)  
Figure 8.3 Installing Ceiling Firestop  
Install attic insula-  
tion shields before  
or after installation  
of vent system.  
3 fasteners  
per side  
Ceiling firestop  
installed below ceiling.  
Ceiling firestop  
installed above ceiling.  
Figure 8.4 Installing the Attic Shield  
36  
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D. Install Attic Insulation Shield  
WARNING! Fire Risk. DO NOT allow loose materials or  
insulation to touch vent. Hearth & Home Technologies Inc.  
requires the use of an attic shield.  
The National Fuel Gas Code ANSI Z223.1 and NFPA 54  
requires an attic shield constructed of 26 gauge minimum  
metal that extends at least 2 in. (51 mm) above insulation.  
Attic shields must meet specified clearance and be se-  
cured in place.  
Bend all tabs inward  
90° to maintain  
clearance and  
Insert 3  
screws  
Flat Ceiling Installation  
Bend 4 tabs  
inward 90°  
to maintain  
clearance  
prevent insulation  
from falling inside  
•
Remove one shield from box.  
NOTICE: Cut previously installed batt insulation to make  
room for the attic insulation shield.  
•
•
•
•
Wrap shield around pipe if pipe is already installed in  
area to be insulated.  
Match the three holes in each side and fasten with three  
screws to form a tube.  
Bend three tabs on the bottom of the shield outward to  
allow attachment to the ceiling firestop.  
Bend the remaining bottom tabs inward 90° to maintain  
the air space between the pipe and the shield. Set the  
shield on the ceiling firestop and attach to the firestop.  
Bend all tabs inward 90° around the top of the shield.  
These tabs must be used to prevent blown insulation  
from getting between the shield and vent pipe, and to  
maintain air space clearance.  
Figure 8.5 Attic Insulation Shield  
•
Vaulted Ceiling Installation  
•
Remove one shield from box.  
NOTICE: Cut previously installed batt insulation to make  
room for the attic insulation shield.  
•
Cut the attic insulation shield (if application is for vaulted  
ceiling) to fit your ceiling pitch. Snip cut edge to recreate  
1 in. bend tabs all the way around the bottom.  
Wrap shield around pipe if pipe is already installed in  
area to be insulated.  
Match the three holes in each side and fasten with three  
screws to form a tube.  
Bend three tabs on the bottom of the shield outward to  
allow attachment to the ceiling firestop.  
Bend the remaining bottom tabs inward 90° to maintain  
the air space between the pipe and the shield. Set  
the shield on the ceiling firestop and attach to the  
firestop.  
•
•
•
•
•
Bend all tabs inward 90° around the top of the shield.  
These tabs must be used to prevent blown insulation  
from getting between the shield and vent pipe, and to  
maintain air space clearance.  
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37  
Appliance Preparation  
9
•
Fold the center parts of the retaining band up and use  
to remove the vent cap.  
A. Top Vent  
CAUTION! Risk of Cuts, Abrasions or Flying Debris.  
Wear protective gloves and safety glasses during installa-  
tion. Sheet metal edges are sharp.  
NOTICE: Once appliance is set up for top or rear venting,  
it CANNOT be changed at a later time.  
•
Remove the cover plate by removing the four screws  
holding it to the top of the appliance. Remove and discard  
the cover plate.  
Figure 9.4  
•
Discard the vent cap, remove and discard the insulation  
basket.  
Note: Once the vent cap has been removed it cannot  
be reattached.  
Figure 9.1  
•
Remove the center insulation plug.  
Figure 9.5  
•
Snap the first vent section into place.  
Figure 9.2  
•
Cut the metal retaining band and fold the sides out.  
Figure 9.3  
38  
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B. Rear Vent  
NOTICE: Once appliance is set up for top or rear venting,  
it CANNOT be changed at a later time.  
•
Discard the vent cap, remove and discard the insulation  
basket.  
•
Fold the tabs toward the center of the vent cap (90º) and  
remove the insulation gasket.  
Figure 9.9  
Figure 9.6  
•
Attach the first vent section (it will snap into place). Slide  
the insulation gasket onto the vent section, up against  
the appliance and over the tabs.  
•
Cut the metal retaining band and fold the sides out.  
Figure 9.7  
Figure 9.10  
•
Fold the center parts of the retaining band out and use  
to remove the vent cap.  
Figure 9.8  
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39  
C. Secure and Level the Appliance  
WARNING! Risk of Fire! Prevent contact with:  
•
•
•
Sagging or loose insulation  
Insulation backing or plastic  
Framing and other combustible materials  
Block openings into the chase to prevent entry of  
blown-in insulation. Make sure insulation and other  
materials are secured.  
DO NOT notch the framing around the appliance  
standoffs.  
Failure to maintain air space clearance may cause  
overheating and fire.  
The diagram shows how to properly position and secure  
the appliance (see Figure 9.11). Nailing tabs are provided  
to secure the appliance to the framing members.  
•
•
•
•
Bend out nailing tabs on each side.  
Place the appliance into position.  
Nailing Flanges  
(both sides)  
Keep nailing tabs flush with the framing.  
Level the appliance from side to side and front to  
back.  
Shim the appliance as necessary. It is acceptable to use  
wood shims underneath the appliance.  
Secure the appliance to the framing by using nails or  
screws through the nailing tabs.  
Figure 9.11 Proper Positioning and Securing of an Appliance  
•
•
•
Secure the appliance to the floor by inserting two screws  
through the pilot holes at the bottom of the appliance.  
40  
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Install Vent Pipe  
10  
A. Assemble Vent Sections (DVP Only)  
Attach Pipe to the Firebox Assembly  
Note: The end of the pipe sections with the lanced tabs will  
face towards the appliance.  
Attach the first pipe section to the starting collar:  
•
•
•
Lanced pipe end to the starting collar  
Inner pipe over inner collar  
Push the pipe section until all lanced tabs snap in  
place  
•
Lightly tug on pipe to confirm it has locked.  
Commercial, Multi-family (Multi-level exceeding  
two stories), or High-Rise Applications  
All outer pipe joints must be sealed with high temperature  
silicone with a minimum of 300ºF continuous exposure  
rating, including the slip section that connects directly to  
the horizontal termination cap.  
Figure 10.1 High Temperature Silicone Sealant  
• Apply a bead of silicone sealant inside the female outer  
pipe joint prior to joining sections. See Figure 10.1  
A
Lances  
• Only outer pipes need to be sealed. All unit collar, pipe,  
slip section, elbow and cap outer flues shall be sealed in  
this manner, unless otherwise stated.  
WARNING! Risk of Fire or Explosion! DO NOT break  
silicone seals on slip sections. Use care when removing  
termination cap from slip pipe. If slip section seals are bro-  
ken during removal of the termination cap, vent may leak.  
B
Figure 10.2  
Figure 10.3  
Assemble Pipe Sections  
Per Figure 10.2:  
Note: Make sure that the seams are not aligned to prevent  
unintentional disconnection.  
•
•
•
•
Start the inner pipe on the lanced end of section A into  
the flared end of section B.  
Start the outer pipe of section A over the outer pipe of  
section B.  
Once both vents sections are started, push firmly until  
all lanced tabs lock into place.  
Lightly tug on the pipe to confirm the tabs have  
locked.  
It is acceptable to use screws no longer than 1/2 in. (13  
mm) to hold outer pipe sections together. If predrilling  
holes, DO NOT penetrate inner pipe.  
CORRECT  
For 90° and 45° elbows that are changing the vent  
direction from horizontal to vertical, one screw minimum  
should be put in the outer flue at the horizontal elbow joint  
to prevent the elbow from rotating. Use screws no longer  
than 1/2 in. (13 mm). If predrilling screw holes, DO NOT  
penetrate inner pipe.  
INCORRECT  
Figure 10.4 Seams  
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41  
B. Assemble Vent Sections (SLP Only)  
C. Assemble Slip Sections  
To attach the first vent component to the starting collars  
of the appliance  
WARNING! Risk of Fire or Asphyxiation! Overlap pipe  
sections at least 1 1/2 in. (38 mm). Secure slip sections  
with two screws which must not exceed 1/2 in. (13 mm)  
in length. Use the pilot holes. Pipe could separate if not  
properly joined.  
•
•
•
Attach a DVP-SLP24 adapter to the starting collar of the  
appliance.  
Lock the vent components into place by sliding the pipe  
section onto the collar.  
Align the seam of the pipe and seam of collar to allow  
engagement. Rotate the vent component to lock into  
place. Use this procedure for all vent components. See  
Figure 10.5.  
•
Slide the inner flue of the slip section into the inner flue of  
the pipe section and the outer flue of the slip section over  
the outer flue of the pipe section. See Figure 10.6.  
Slide together to the desired length.  
•
•
Slide the gasket over the first vent section and place  
it flush to the appliance. This will prevent cold air  
infiltration. Caulk with a minimum of 300ºF continuous  
exposure rating may be used to hold the part in place.  
Continue adding vent components, locking each  
succeeding component into place.  
•
•
Ensure that each succeeding vent component is securely  
fitted and locked into the preceding component.  
Commercial, Multi-family (Multi-level exceeding  
two stories), or High-Rise Applications  
Figure 10.6 Slip Section Pilot Holes  
For Installation into a commercial, multi-family (multi-level  
exceeding two stories) or high-rise applications: All outer  
pipe joints must be sealed with silicone with a minimum  
of 300ºF continuous exposure rating, including the slip  
section that connects directly to the horizontal termination  
cap.  
•
•
Maintain a 1-1/2 in. (38 mm) overlap between the slip  
section and the pipe section.  
Secure the pipe and slip section with two screws no  
longer than 1/2 in. (13 mm), using the pilot holes in the  
slip section. See Figure 10.7.  
•
Apply a bead of silicone sealant inside the female outer  
pipe joint prior to joining sections. See Figure 10.1  
Only outer pipes need to be sealed. All unit collar, pipe,  
slip section, elbow and cap outer flues shall be sealed  
in this manner, unless otherwise stated.  
•
WARNING! Risk of Fire or Explosion! DO NOT break  
silicone seals on slip sections. Use care when removing  
termination cap from slip pipe. If slip section seals are bro-  
ken during removal of the termination cap, vent may leak.  
Figure 10.7 Screws into Slip Section  
2 - Rotate  
•
Continue adding pipe as necessary following instructions  
in “Assemble Pipe Sections.”  
NOTICE: If slip section is too long, the inner and outer flues  
of the slip section can be cut to the desired length.  
1 - Align Seams  
NOTICE: When installing a vent system with an HRC  
termination cap, all pipe system joints shall be sealed using  
silicone with a minimum of 300ºF continuous exposure  
rating.  
Figure 10.5 Adding Venting Components  
• Apply a bead of silicone sealant inside the female outer  
pipe joint prior to joining sections.  
• Only outer pipes are sealed, sealing the inner flue is not  
required.  
• All unit collar, pipe, slip section, elbow and cap outer flues  
shall be sealed.  
42  
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D. Secure the Vent Sections  
E. Disassemble Vent Sections  
•
Vertical runs of DVP pipe must be supported every 8 ft.  
(2.44 m) after the 25 ft. (7.62 m) maximum unsupported  
rise.  
•
Rotate either section (see Figure 10.10) so the seams  
on both pipe sections are aligned as shown in Figure  
10.11.  
•
•
•
•
•
Vertical runs of SLP pipe must be supported every 8 ft.  
(2.44 m).  
Horizontal sections of vent must be supported every 5  
ft. (1.52 m) with a vent support or plumber’s strap.  
Wall shield firestops may be used to provide horizontal  
support.  
Vent support or plumber’s strap (spaced 120° apart)  
may be used for support. See Figures 10.9 and 10.10.  
SLP ceiling firestops have tabs that may be used to  
provide vertical support.  
•
Pull carefully to separate the pieces of pipe.  
WARNING! Risk of Fire, Explosion or Asphyxi-  
ation! Improper support may allow vent to sag and  
separate. Use vent run supports and connect vent  
sections per installation instructions. DO NOT allow  
vent to sag below connection point to appliance.  
Figure 10.10 Rotate Seams for Disassembly  
Figure 10.8 Securing Vertical Pipe Sections  
Figure 10.11 Align and Disassemble Vent Sections  
Figure 10.9 Securing Horizontal Pipe Sections  
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43  
F. Install Decorative Ceiling Components  
(SLP only)  
Level  
A decorative ceiling thimble can be installed on a flat ceil-  
ing through which the vent passes. The decorative ceiling  
thimble is used to cover the firestop.  
Cathedral ceiling  
support box  
•
Seal the gap between the vent pipe and firestop using  
silicone with a minimum of 300ºF continuous exposure  
rating to prevent cold air infiltration.  
2 in. (51 mm)  
minimum below  
finished ceiling  
•
Install the decorative ceiling thimble by sliding it up to  
the ceiling and attaching it using the provided screws.  
A decorative cathedral ceiling support box can be used  
where vertical vent runs pass through a cathedral ceiling.  
Cut hole 1/8 in. (3 mm) greater  
in size than pattern of support  
box as it is projected onto  
roofline.  
•
Use a plumb-bob to mark the center line of the venting  
system on the ceiling and drill a small hole through the  
ceiling and roof at this point. Locate the hole and mark  
the outline of the cathedral ceiling support box on the  
outside roof.  
Figure 10.12  
•
•
•
•
•
Remove shingles or other roof covering as necessary  
to cut the rectangular hole for the support box. Cut the  
hole 1/8 in. (3 mm) larger than the support box outline.  
Lower the support box through the hole in the roof until  
its bottom is at least 2 in. (51 mm) below the ceiling  
(Figure 10.12).  
Level the support box both vertically and horizontally  
and temporarily tack it in place through the inside walls  
into the roof sheathing.  
Use tin snips to cut the support box from the top corners  
down to the roof line and fold the resulting flaps to the  
roof. See Figure 10.13.  
Nail the flaps to the roof AFTER running a bead of non  
hardening sealant between the flaps and the roof.  
WARNING! Risk of Fire! Clean out ALL materials from  
inside the support box and complete the vertical vent run  
and termination.  
Figure 10.13  
44  
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G. Install Metal Roof Flashing  
H. Assemble and Install Storm Collar  
•
See minimum vent heights for various pitched roofs  
(Figure 10.14) to determine the length of pipe to extend  
through the roof.  
Slide the roof flashing over the pipe sections extending  
through the roof as shown in Figure 10.15.  
CAUTION! Risk of Cuts, Abrasions or Flying Debris.  
Wear protective gloves and safety glasses during installa-  
tion. Sheet metal edges are sharp.  
•
•
•
Connect both halves of the storm collar with two screws  
(see Figure 10.16).  
Horizontal  
overhang  
Wrap the storm collar around the exposed pipe section  
closest to the roof and align brackets. Insert a bolt  
(provided) through the brackets and tighten the nut to  
complete the storm collar assembly (Figure 10.17). Make  
sure the collar is tight against the pipe section.  
Slide the assembled storm collar down the pipe section  
until it rests on the roof flashing.  
20 in.  
24 in. min.  
(508 mm)  
(610 mm)  
Vertical  
wall  
Lowest  
Discharge  
Opening  
•
•
Termination  
Cap  
Caulk around the top of the storm collar (see Figure  
10.24).  
X
Storm Collar  
12  
Roof  
Flashing  
Roof Pitch  
is X / 12  
H (min.) - Minimum height  
from roof to lowest  
discharge opening.  
Roof Pitch  
H (Min.) Ft.  
Roof Pitch  
H (Min.) Ft.  
Flat to 6/12  
1.0*  
Over 11/12 to 12/12  
Over 12/12 to 14/12  
Over 14/12 to 16/12  
Over 16/12 to 18/12  
Over 18/12 to 20/12  
Over 20/12 to 21/12  
4.0  
5.0  
6.0  
7.0  
7.5  
8.0  
Over 6/12 to 7/12  
Over 7/12 to 8/12  
Over 8/12 to 9/12  
Over 9/12 to 10/12  
1.25*  
1.5*  
2.0*  
2.5  
Over 10/12 to 11/12 3.25  
* 3 ft. minimum in snow regions  
Figure 10.16 Assembling the Storm Collar  
Figure 10.14 Minimum Height From Roof To Lowest Discharge  
Opening  
NOTICE: Failure to properly caulk the roof flashing and pipe  
seams may permit entry of water.  
• Caulk the gap between the roof flashing and the outside  
diameter of the pipe.  
• Caulk the perimeter of the flashing where it contacts the  
roof surface. See Figure 10.15.  
• Caulk the overlap seam of any exposed pipe sections that  
are located above the roof line.  
CAULK  
Figure 10.17 Assembling the Storm Collar Around the Pipe  
Figure 10.15  
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45  
I. Install Vertical Termination Cap  
K. Heat Shield Requirements for Horizontal  
Termination  
•
Attach the vertical termination cap by sliding the inner  
collar of the cap into the inner flue of the pipe section  
while placing the outer collar of the cap over the outer  
flue of the pipe section.  
WARNING! Risk of Fire! To prevent overheating and fire,  
heat shields must extend through the entire wall thick-  
ness.  
•
Secure the cap by driving three self-tapping screws  
(supplied) through the pilot holes in the outer collar of the  
cap into the outer flue of the pipe (see Figure 10.18).  
• DO NOT remove the heat shields attached to the  
wall shield firestop and the horizontal termination  
cap.  
• Heat shields must overlap 1-1/2 in. (38 mm) mini-  
mum.  
Termination Cap  
There are two sections of the heat shield. One section  
is factory-attached to the wall shield firestop. The other  
section is factory-attached to the cap. See Figure 10.20.  
If the wall thickness does not allow the required 1-1/2 in.  
(38 mm) heat shield overlap when installed, an extended  
heat shield must be used.  
•
If the wall thickness is less than 4 in./102 mm (DVP) or  
4-3/8 in./ 111 mm (SLP), the heat shields on the cap and  
wall shield firestop must be trimmed. A minimum 1-1/2  
in. (38 mm) overlap MUST be maintained.  
Use an extended heat shield if the finished wall thickness  
is greater than 7-1/4 in. (184 mm).  
The extended heat shield may need to be cut to length  
maintaining sufficient length for a 1-1/2 in. (38 mm)  
overlap between heat shields.  
(1 of three)  
Brackets/  
Bolts  
Storm  
Collar  
•
•
Screws  
•
•
Attach the extended heat shield to either of the existing  
heat shields using the screws supplied with the extended  
heat shield. Refer to “Vent Components Diagrams” in  
the back of this manual.  
Rest the small leg on the extended heat shield on top  
of the pipe section to properly space it from the pipe  
section.  
Caulk  
Figure 10.18  
J. Install Decorative Wall Components (SLP  
only)  
Important Notice: Heat shields may not be field constructed.  
A decorative wall thimble can be installed on an interior  
wall through which the vent passes. The decorative wall  
thimble is used to cover the wall shield firestop.  
•
Slide the decorative wall thimble over the last section of  
horizontal pipe before passing through the wall to the  
outside.  
•
Once the pipe section and the termination cap have  
been connected, slide the wall thimble up to the interior  
wall surface and attach with screws provided. See  
Figure 10.19.  
Figure 10.19 Wall Thimble  
46  
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•
When installing a horizontal termination cap, follow  
the cap location guidelines as prescribed by current  
ANSI Z223.1 and CAN/CGA-B149 installation codes  
and refer to Section 6 of this manual.  
L. Install Horizontal Termination Cap  
WARNING! Risk of Fire! The telescoping flue section  
of the termination cap MUST be used when connecting  
vent.  
CAUTION! Risk of Burns! Local codes may require  
installation of a cap shield to prevent anything or anyone  
from touching the hot cap.  
• 1-1/2 (38 mm) minimum overlap of flue telescoping  
section is required.  
Failure to maintain overlap may cause overheating and  
fire.  
NOTICE: For certain exposures which require superior  
resistance to wind-driven rain penetration, a flashing kit and  
HRC caps are available. When penetrating a brick wall, a  
brick extension kit is available for framing the brick.  
•
•
Vent termination must not be recessed in the wall. Siding  
may be brought to the edge of the cap base.  
Flash and seal as appropriate for siding material at  
outside edges of cap.  
Note: When using termination caps with factory-supplied  
heat shield attached, no additional wall shield firestop is  
required on the exterior side of a combustible wall.  
Heat Shield or  
Extended  
Heat Shield  
Heat Shield  
1-1/2 in. (38 mm) min.  
overlap  
Wall Shield  
Firestop  
Slip Section  
can be extended  
Inner Vent  
SHEATHING  
Outer Vent  
EXTERIOR  
INTERIOR  
Vent depth from back of appliance to  
outside surface of exterior wall  
(see chart below)  
Figure 10.20 Venting through the wall  
Cap Specification Chart (depth without using additional pipe sections)  
DVP-TRAPK1  
DVP-TRAP1  
DVP-TRAPK2  
DVP-TRAP2  
SLP-TRAP1  
SLP-TRAP2  
Top Vent Depth  
Rear Vent Depth  
Top Vent Depth  
Rear Vent Depth  
Top Vent Depth Top Vent Depth  
4 3/8 to 8 3/8  
4 1/2 to 6 3/8 in.  
3 to 4 7/8 in.  
6 7/8 to 10 7/8 in. 5 3/8 to 9 3/8 in. 2 to 3 7/8 in.  
in.  
NNXT Series  
DVP-HPC1  
DVP-HPC1  
DVP-HPC2  
DVP-HPC2  
Top Vent Depth  
Rear Vent Depth  
Top Vent Depth  
Rear Vent Depth  
4 1/2 to 6 5/8 in.  
3 to 5 1/8 in.  
6 5/8 to 10 3/4 in. 5 1/8 to 9 1/4 in.  
DVP-TRAP1 can adjust 1 1/2 in. (3 1/8 to 4 5/8)  
DVP-TRAP2 can adjust 4 in. (5 3/8 to 9 3/8)  
SLP-TRAP1 can adjust 1 5/8 in. (3 1/8 to 4 3/4)  
SLP-TRAP2 can adjust 4 in. (5 1/4 to 9 1/4))  
DVP-HPC1 can adjust 2 1/8 in. (4 1/4 to 6 3/8)  
DVP-HPC2 can adjust 4 1/8 in. (6 3/8 to 10 1/2)  
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47  
Shrouds  
11  
A. HHT Shrouds  
•
You may install a shroud with this fireplace. See Section 17.D. for a list of UL Listed shrouds. Follow the instructions  
included with these optional components  
B. Field Constructed Shrouds  
WARNING! Risk of Fire! Shrouds must be constructed  
as specified. Improper construction may overheat chase  
top.  
•
Chase top shrouds may be field constructed where permitted by regional building codes.  
NOTICE: Some regional codes require an agency-Listed  
shroud. Consult your local building officials.  
•
The following field constructed shroud designs have been tested for Hearth Technologies fireplace systems and termination  
caps.  
•
•
The shrouds must be constructed from a minimum .018 in. (26 ga) thick aluminized steel.  
The wire mesh is optional but recommended and must be .018 in. thick minimum, 1/2 in. mesh.  
Open Top Shroud (may be used with DVP-TV, DVP-TVHW, SLP-TVHW)  
Min. Base Dims.  
in  
19 x 19  
Min.  
Top Dim.  
mm  
483 x 483  
Min.  
Top Dim.  
Min. Top Dims.  
in  
16 x 16  
mm  
406 x 406  
Min.  
Base Dim.  
Min.  
Base Dim.  
Figure 11.1 Open Top Shroud Dimensions  
48  
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Mailbox Style Shroud (may be used with DVP-TV, DVP-TVHW, SLP-TVHW)  
Min. Base Dims.  
Min. Height  
in  
20 x 20  
mm  
508 x 508  
Min. Height  
in  
18  
Min. Base Dim  
mm  
457  
Min.  
Base Dim  
Figure 11.2 Mailbox Style Shroud Dimensions  
Roofed Style Shroud (may be used with DVP-TV, DVP-TVHW, SLP-TVHW)  
Min. Base Dims.  
in  
20 x 20  
mm  
508 x 508  
Min. Height  
Minimum  
Height  
in  
18  
Minimum  
Opening  
Height  
mm  
458  
Min. Opening Width  
Min. Opening  
Width  
in  
14  
Minimum  
Base Dimension  
mm  
356  
Min. Opening Height  
in  
10  
mm  
254  
Figure 11.2 Roofed Style Shroud Dimensions  
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49  
Gas Information  
12  
A. Fuel Conversion  
C. Gas Connection  
•
Make sure the appliance is compatible with available  
gas types.  
•
Refer to Reference Section 17.A. for location of gas line  
access in appliance.  
•
Conversions must be made by a qualified service  
technician using Hearth & Home Technologies specified  
and approved parts.  
•
•
Gas line may be run through knockout(s) provided.  
The gap between supply piping and gas access hole  
may be caulked with caulk with a minimum of 300ºF  
continuous exposure rating, or stuffed with non-  
combustible, unfaced insulation to prevent cold air  
infiltration.  
Ensure that gas line does not come in contact with outer  
wrap of the appliance. Follow local codes.  
Pipe incoming gas line into valve compartment.  
Connect incoming gas line to the 1/2 in. (13 mm)  
connection on manual shutoff valve.  
B. Gas Pressure  
•
Optimum appliance performance requires proper input  
pressures.  
Gas line sizing requirements will be determined inANSI  
Z221.3 National Fuel Gas Code in the USA and CAN/  
CGA B149 in Canada.  
•
•
•
•
•
Pressure requirements are:  
Gas Pressure  
Minimum inlet pressure  
Maximum inlet pressure  
Manifold pressure  
Natural Gas  
5.0 in. w.c.  
10.0 in. w.c.  
3.5 in. w.c.  
Propane  
11.0 in. w.c.  
13.0 in. w.c.  
10.0 in. w.c.  
WARNING! Risk of Fire or Explosion! Support control  
when attaching pipe to prevent bending gas line.  
•
A small amount of air will be in the gas supply lines.  
WARNING! Risk of Fire or Explosion! Gas build-up dur-  
ing line purge could ignite.  
WARNING! Risk of Fire or Explosion! High pressure  
will damage valve. Low pressure may cause explosion.  
•
Purge should be performed by qualified service  
technician.  
•
•
Verify inlet pressures. Verify minimum pressures when  
other household gas appliances are operating.  
Install regulator upstream of valve if line pressure is  
greater than 1/2 psig.  
•
•
Ensure adequate ventilation.  
Ensure there are no ignition sources such as sparks or  
open flames.  
Light the appliance. It will take a short time for air to purge  
from lines. When purging is complete the appliance will  
light and operate normally.  
WARNING  
WARNING! Risk of Fire, Explosion or Asphyxiation!  
Check all fittings and connections with a non-corrosive  
commercially available leak-check solution. DO NOT use  
open flame. Fittings and connections could have loos-  
ened during shipping and handling.  
Fire Risk.  
Explosion Hazard.  
High pressure will damage valve.  
• Disconnect gas supply piping BEFORE  
pressure testing gas line at test pressures  
above 1/2 psig.  
WARNING! Risk of Fire! DO NOT change valve settings.  
This valve has been preset at the factory.  
• Close the manual shutoff valve BEFORE  
pressure testing gas line at test pressures  
equal to or less than 1/2 psig.  
Note: Have the gas supply line installed in accordance with  
local codes, if any. If not, follow ANSI 223.1. Installation  
should be done by a qualified installer approved and/or  
licensed as required by the locality. (In the Commonwealth  
of Massachusetts installation must be performed by a  
licensed plumber or gas fitter).  
D. High Altitude Installations  
NOTICE: If the heating value of the gas has been reduced,  
these rules do not apply. Check with your local gas utility or  
authorities having jurisdiction.  
When installing above 2000 feet elevation:  
Note: A listed (and Commonwealth of Massachusetts  
approved) 1/2 in. (13 mm) T-handle manual shut-off valve  
and flexible gas connector are connected to the 1/2 in. (13  
mm) control valve inlet.  
•
In the USA: Reduce burner orifice 4% for each 1000 feet  
above 2000 feet.  
In CANADA: Reduce burner orifice 10% for elevations  
between 2000 feet and 4500 feet. Above 4500 feet,  
consult local gas utility.  
•
• If substituting for these components, please consult  
local codes for compliance.  
50  
Heatilator • Novus NNXT • 4055-879 • Rev. o • 2/12  
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Electrical Information  
13  
C. Optional Accessories Requirements  
A. Wiring Requirements  
•
This appliance may be used with a wall switch, wall  
mounted thermostat and/or a remote control.  
Wiring for optional Hearth & Home Technologies  
approved accessories should be done now to avoid  
reconstruction. Follow instructions that come with those  
accessories.  
NOTICE: This appliance must be electrically wired  
and grounded in accordance with local codes or, in the  
absence of local codes, with National Electric Code  
ANSI/NFPA 70-latest edition or the Canadian Electric  
Code CSA C22.1.  
•
•
•
•
Wire the appliance junction box to 120 VAC. This is  
required for use of optional accessories (standing pilot  
ignition) or proper operation of the appliance (Intellifire  
Plus™ ignition).  
A120 VAC circuit for this product must be protected with  
ground-fault circuit-interrupter protection, in compliance  
with the applicable electrical codes, when it is installed  
in locations such as in bathrooms or near sinks.  
Low voltage and 120 VAC voltage cannot be shared  
within the same wall box.  
• Hearth & Home Technologies recommends that Intelli-  
Fire PlusTM wireless controls be used for their features  
and functionality with the IntelliFire PlusTM ignition sys-  
tem.  
•
A standard ON/OFF switch is compatible.  
WARNING! Risk of Shock or Explosion! DO NOT wire  
120V to the valve or to the appliance wall switch. Incorrect  
wiring will damage controls.  
B. Intellifire Plus™ Ignition System Wiring  
•
Wire the appliance junction box to 120 VAC for proper  
operation of the appliance.  
WARNING! Risk of Shock or Explosion! DO NOT wire  
IPI controlled appliance junction box to a switched circuit.  
Incorrect wiring will override IPI safety lockout.  
•
•
•
•
Refer to Figure 13.1, Intellifire Plus intermittent pilot  
ignition (IPI) wiring diagram.  
This appliance is equipped with an Intellifire control valve  
which operates on a 6-volt system.  
Plug the 6-volt DC power supply into the appliance  
junction box to supply power to the unit  
For battery backup protection, install four AA-cell  
batteries (not included) into the battery pack before use.  
Remove batteries if the fireplace will not be used for an  
extended period of time.  
NOTICE: Battery polarity must be correct or module damage  
will occur.  
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51  
D. Electrical Service and Repair  
WARNING! Risk of Shock! Replace damaged wire with  
type 105° C rated wire. Wire must have high temperature  
insulation.  
WARNING! Risk of Shock! Label all wires prior to  
disconnection when servicing controls. Wiring errors can  
cause improper and dangerous operation. Verify proper  
operation after servicing.  
RC200 12V DC  
(A23 X 1)  
FLAME  
SENSE  
IGNITER  
TO JUNCTION  
BOX (120V)  
6V DC  
SUPPLY  
3 PRONG 120VAC  
CONTROL MODULE  
I
AUX200 MODULE  
S
FAN  
FLAME  
MODULATION  
TO JUNCTION  
BOX 120VAC  
BATTERY PACK  
6V DC  
RED  
BLACK  
ORANGE  
(PILOT)  
GREEN  
(MAIN)  
BROWN  
BROWN/RED  
OPTIONAL ON/OFF  
SWITCH  
GROUND  
Figure 13.1 RC200 Wiring Diagram  
52  
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E. Junction Box Installation  
If the box is being wired from the OUTSIDE of the appli-  
ance:  
Romex  
Connector  
•
•
•
Remove the cover plate located on the outer shell - right  
side (see Figure 13.2).  
Install the supplied Romex™ connector in the cover  
plate.  
Make all necessary wire connections and reattach the  
cover plate to the outer shell.  
14/2WG  
Cover Plate  
outside firebox  
If the box is being wired from the INSIDE of the appli-  
ance:  
Copper  
•
Remove the screw attaching the junction box/receptacle  
to the outer shell, rotate the junction box inward to  
disengage it from the outer shell (see Figure 13.2).  
Pull the electrical wires from outside the appliance  
through this opening into the valve compartment. See  
Figure 13.4.  
ground attached  
to GRN screw with  
GRN wire  
GRN wire  
inside box  
•
Figure 13.2 Junction Box Detail  
F. Wall Switch Installation for Fan (Optional)  
If the box is being wired to a wall mounted switch for use with a fan, see Figure 13.3:  
•
•
•
•
•
The power supply for the appliance must be brought into a switch box.  
The power can then be supplied from the switch box to the appliance using a minimum of 14-3 with ground wire.  
At the switch box connect the black (hot) wire and red (switch leg) wire to the wall switch as shown.  
At the appliance connect the black (hot), white (neutral) and green (ground) wires to the junction box as shown.  
Add a 1/4 in. insulated female connector to the red (switch leg) wire, route it through the knockout in the face of the  
junction box, and connect to the top fan switch connector (1/4 in. male) as shown.  
Switch  
Minimum 14-3 AWG  
with Ground  
Red  
Black  
Black  
White  
Green  
White  
Green  
Junction Box  
Power  
Supply  
Wires  
Switch Box  
Knockout  
Red  
Figure 13.3 Junction Box Wired to Wall Switch or BC10  
Heatilator • Novus NNXT • 4055-879 • Rev. o • 2/12  
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53  
G. Remote Control Installation & Operations  
RC200  
IntelliFire Plus™ Multifunction Remote Control  
Installation & Operating Instructions  
Canadian Equipment Requirements  
Hearth & Home Technologies disclaims any responsibility for,  
This digital apparatus does not exceed the (ClassA/ Class  
B) limits for radio noise emissions from digital apparatus  
set out in the Radio Interference Regulations of the Cana-  
dian Department of Communications. Le present appareil  
numerique n’emet pas de bruits radioelectriques depas-  
sant les limites applicables aux appareils numeriques (de  
la class A/de la class B) prescrites dans le Reglement sur  
le brouillage radioelectrique edicte par le ministere des  
Communications du Canada.  
and the warranty will be voided by, the following actions:  
• Installation and use of any damaged system component.  
• Modification of the system component.  
• Installation other than as instructed by Hearth & Home  
Technologies.  
• Installation and/or use of any component part not approved  
by Hearth & Home Technologies.  
Any such action may cause a fire hazard.  
• Read, understand and follow these instructions for safe  
installation and operation.  
This device complies with RSS-210 of Industry and Science  
Canada. Operation is subject to the following two condi-  
tions: (1) this device may not cause interference, and (2)  
this device must accept any interference, including interfer-  
ence that may cause undesired operation of the device.  
Introduction  
The RC200 multifunctional wireless control with dock-  
ing station is designed to control constant pilot feature,  
flame height, blower speed and to turn your gas fire-  
place on and off. The RC200 remote control is only for  
use with the Hearth & Home Technologies IntelliFire  
Plus™ system (IPI).  
Installation Precautions  
This control is tested and safe when installed in accor-  
dance with this installation manual. Do not install any  
components that may be damaged.  
Do not modify, disassemble, or substitute any of the com-  
ponents included with this kit. Installation of this unit must  
be done by a qualified service technician.  
FCC Requirements  
WARNING! Risk of Fire! Changes or modifications to  
this unit not expressly approved by the party responsible  
for compliance could void the user’s authority to operate  
the equipment.  
Placement of this remote control may affect performance.  
An assessment of the space should be done prior to in-  
stallation for optimum performance.  
Note: This equipment has been tested and found to  
comply with the limits for a Class B digital device, pur-  
suant to Part 15 of the FCC Rules. These limits are  
designed to provide reasonable protection against  
harmful interference in a residential installation. This  
equipment generates, uses, and can radiate radio  
frequency energy and, if not installed and used in ac-  
cordance with the instructions, may cause harmful in-  
terference to radio communications. However, there is  
no guarantee that interference will not occur in a partic-  
ular installation. If this equipment does cause harmful  
interference to radio or television reception, which can  
be determined by turning the equipment off and on, the  
user is encouraged to try to correct the interference by  
one or more of the following measures:  
Determine Location  
Determine the location for the remote control. The selected  
location should be in the same space as the gas fireplace  
with visual sight of fireplace. The remote control must be  
placed within 30 feet of the fireplace but should not be  
exposed to extreme heat.  
The RC200 is approved for interior installation and should  
always be placed under weather resistant cover when used  
in exterior applications.  
• Keep remote control out of reach of children.  
• Reorient or relocate the receiving antenna.  
• Increase the separation between the equipment and  
receiver.  
• Connect the equipment into an outlet on a circuit dif-  
ferent from that to which the receiver is connected.  
• Contact the dealer or an experienced radio TV techni-  
cian for help.  
54  
Heatilator • Novus NNXT • 4055-879 • Rev. o • 2/12  
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5. Close the housing door and press the power button.  
The red light illuminates if the battery was properly in-  
stalled. See Figure 3.  
Installation of Remote Control Housing  
CAUTION! Risk of Fire! DO NOT install damaged or  
modified components. Warranty will be voided if damaged  
or modified components are installed.  
Kit components: One remote control, two #6 screws, two  
wall anchors, one A23 battery and one AUX200 module (if  
purchased retail).  
RED LED  
1. Remove remote control components from packaging.  
2. Remove battery cover from the back of the remote by  
sliding it down and install A23 battery.  
To prevent unintended operation when not using your fire-  
place for an extended period of time (summer months,  
vacation, trips, etc):  
• Remove battery from remote control.  
Figure 3. Mounting Remote Control Housing  
• Unplug switching adapter and remove back-up batteries.  
3. Secure the remote control housing on a flat wall sur-  
face using the two screws and wall anchors provided.  
See Figure 1.  
AUX200 Module Installation  
• Control Module should be set in the OFF position before  
any components are installed.  
• Insert the 4 hole harness from the AUX200 module into  
the 4 pin plug on the control module. See Figure 4.  
AUX200  
CABLE  
Figure 4. AUX 200 module installation  
Fan Installation  
• Insert the 3 prong plug from the fan into the receptacle  
located in the AUX200 module. See Figure 5.  
Figure 1. Mounting Remote Control Housing  
4. Place remote control inside housing. See Figure 2.  
Figure 2. Remote in Housing  
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55  
• Insert 3 prong plug fromAUX200 module into REM/AUX  
receptacle of fireplace junction box.  
Function Buttons  
Press the POWER button to turn the fireplace  
ON and OFF. The fireplace will first ignite the pi-  
lot. Once the pilot flame is established the main  
burner will be lit.  
Press the FLAME button to adjust the flame  
height. The flame height can be adjusted to 5  
different settings: MAX, HIGH, MEDIUM, LOW,  
MIN. Flame height will not be adjustable for first  
ten seconds when fireplace is turned on. The  
system remembers the previous flame height  
setting and will automatically adjust to previ-  
ous setting after 10 seconds.  
FAN CORD  
Press the FAN button to adjust the fan speed.  
The FAN speed can be adjusted to 4 different  
settings: HIGH, MED, LOW and OFF. The fan  
has a timer built into the control module. After  
the fireplace is turned ON the timer will wait for  
7 minutes before turning on the fan. In addition,  
the fan will remain on for 12 minutes after the  
fireplace has been turned OFF. Whenever the  
fan is turned ON, the FAN will start up on the  
high setting for 10 seconds before adjusting to  
the previous user setting.  
Figure 5. Plug Fan into AUX200 Module  
Programming the RC200 to the Control Module  
CAUTION! Risk of burns! DO NOT program the remote  
control to the control module when fireplace is hot.  
• Verify the ON/OFF/REMOTE switch is in the REMOTE  
position. Green LED light will blink three times and beep  
once 5 seconds later when ready. See Figure 6.  
• Using a small item (such as a paper clip) press and  
release the learn button located near the ON/OFF/  
REMOTE switch. See Figure 6.  
Press the PILOT button to activate or deactivate  
the constant pilot. The control module will beep  
once indicating constant pilot has been activat-  
ed. A double beep indicates the constant pilot  
has been deactivated.  
• Control module will beep once and LED will blink green  
for 10 seconds.  
• While the LED is blinking, press the power button on  
the remote control. A double beep will come out of the  
control module to indicate that it has been programmed  
successfully.  
NOTICE: Whenever the fireplace is cycled from OFF to  
ON, the main burner will light on high for 10 seconds before  
returning to the previous user setting.  
NOTICE: Up to three remote controls can be programmed  
into the control module. Simply press a button on the other  
remote controls during the 10 second programming process  
to add another remote into the system.  
Setting the Child Lock  
• Remove battery cover from the back of the remote by  
sliding it down. Slide the child lock switch to enable or  
disable the child lock feature. See Figure 7.  
To clear memory in the control module, use a small item  
(such as a paper clip) to press and release the LEARN  
button. Control module will beep once and LED will blink  
green for 10 seconds DO NOT press any buttons on the  
remote during the ten seconds that the green LED blinks.  
The memory will be cleared.  
NOTICE: No functions will be usable until child lock feature  
is disabled.  
REMOTE POSITIONN  
Figure 6. Programming RC200  
Figure 7. Child Lock Switch  
56  
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The fireplace may be manually shut down by one of the  
following methods:  
Power Outage  
• If fireplace battery backup system IS installed at time of  
power outage, fireplace operation will not be interrupted.  
Turn off the control module:  
• Open or remove the decorative front to access the control  
module.  
• If fireplace battery backup system IS NOT installed at  
time of power outage, fireplace will shut off. To resume  
fireplace operation, install battery backup.  
• Move switch to OFF (See Figure 6).  
NOTICE: Battery polarity must be correct or module  
damage will occur.  
Disconnect power to the control module:  
• Open or remove the decorative front to access power  
cord to the junction box and/or back-up batteries.  
Manual Fireplace Shutoff  
• Unplug the control module and/or remove back-up  
batteries.  
In the unlikely event that the remote wall switch malfunc-  
tions and will not turn off the fireplace, call your dealer  
for service assistance. In the meantime, you may choose  
one of the following actions to turn off the fireplace:  
Shut off gas to the control:  
• Open or remove the decorative front and locate the gas  
shut-off valve to the left of the gas control.  
CAUTION! Risk of burns! Fireplace surfaces are hot  
when operating and during cool down. Use care and wear  
gloves when opening the front and accessing compo-  
nents inside the fireplace.  
• Rotate the valve 90 degrees to turn off gas supply.  
Turn off power to the fireplace (if back-up batteries are  
not installed):  
• Locate house circuit breaker for fireplace.  
• Turn off the circuit breaker.  
Frequently Asked Questions/Troubleshooting  
Symptom  
Possible Cause  
Batteries  
Corrective Action  
Verify battery is functional and installed correctly.  
Remote control will not transmit  
Remote control is in Child  
Lock mode  
Disengage Child Lock mode.  
Control module is not in  
“REMOTE” mode  
Ensure module switch is set to REMOTE.  
Control module and remote The control module will beep when it successfully receives a  
control are not programmed command. If it does not beep, clear module memory and re-  
Control module will not take  
to each other  
program wall switch.  
commands from remote control  
Control module is  
unplugged. In case of  
power outage, backup  
batteries are depleted or  
missing  
If red LED light comes on when power button is pressed, verify  
that the control module is plugged in the fireplace junction box  
located in the controls area. Also verify that the batteries are  
installed in the battery pack.  
Fan does not turn on when fireplace  
is started  
The fireplace must run for seven minutes in order for the fan  
to engage.  
Built in time delay  
Built in time delay  
Fan does not turn off when fireplace  
turned off  
The fan will run for twelve minutes after the fireplace is turned off.  
The fireplace will automatically shut down after nine hours of  
continuous operation if it does not receive a command from  
the remote.  
Fireplace shuts down after extended  
periods  
Built-in timer  
The fireplace cannot be turned off by remote if an external  
wired wall switch is installed and in the ON position. Turn ex-  
ternal wall switch to OFF.  
External wired wall switch  
Fireplace is on but will not shut off  
with the remote control  
At control module, turn off fireplace by sliding the ON/OFF/RE-  
MOTE switch to OFF. Warning! Risk of Fire! Fireplace is hot.  
Use caution when accessing module.  
Remote control or control  
module failure  
Please contact your Hearth & Home Technologies  
dealer with any questions or concerns.  
For the location of your nearest  
Hearth & Home Technologies dealer,  
please visit www.fireside.com.  
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57  
Finishing  
14  
A. Mantel and Wall Projections  
WARNING! Risk of Fire! Comply with all minimum clear-  
ances to combustibles as specified. Framing or finishing  
material closer than the minimums listed must be construct-  
ed entirely of non-combustible materials (i.e., steel studs,  
concrete board, etc).  
Mantels  
Note: All  
measurements  
in inches.  
30 in. minimum  
to ceiling  
18  
17  
16  
16  
15  
15-1/4  
14  
14-1/2  
13-3/4  
13  
12  
13  
11  
12-1/4  
11-1/2  
10-3/4  
10  
10  
9
8
7
9-1/4  
6
7
8-1/2  
7-3/4  
5
4
3
6-1/4  
5-1/2  
5
Measured from top of hood (in inches)  
Figure 14.1 Minimum Vertical and Maximum Horizontal Dimensions  
Mantel Legs or Wall Projections  
Top of  
Appliance  
Drywall  
A
B
Mantel Leg or  
Perpendicular Wall  
A 1 in. (25 mm) min.  
to perpendicular wall  
B 3-1/2 in. (89 mm) min.  
from fireplace opening  
to perpendicular wall  
Figure 14.2 Mantel Leg or Wall Projections (Acceptable on both sides of opening)  
58  
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B. Facing Material  
•
Metal front faces may be covered with non-combustible  
materials only.  
•
Facing and/or finishing materials must not interfere with  
air flow through louvers, operation of louvers or doors,  
or access for service.  
•
•
•
Facing and/or finishing materials must never overhang  
into the glass opening.  
Observe all clearances when applying combustible  
materials.  
Seal joints between the finished wall and appliance top  
and sides using a 300°F minimum sealant. Refer to  
Figure 14.3.  
WARNING! Risk of Fire! DO NOT apply combustible ma-  
terials beyond the minimum clearances. Comply with all  
minimum clearances to combustibles as specified in this  
manual. Overlapping materials could ignite and will inter-  
fere with proper operation of doors and louvers.  
Non-combustible strip shipped with appliance.  
DO NOT REMOVE!  
May be covered with non-combustible materials only.  
Finish wall material may be  
combustible on sides and up to  
non-combustible strip on top.  
0 in.  
0 in.  
0 in.  
High Temperature Sealant (300° F/149° C min.)  
Top and Side Seal Joint  
Figure 14.3 Non-combustible Facing Diagram  
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59  
Appliance Setup  
15  
A. Remove the Packaging  
C. Remove the Shipping Materials  
Remove the shrink film, corrugated top cap, bottom cap  
and column protectors from the appliance. The appliance  
should look as shown in Figure 15.1.  
Remove the shipping materials from inside or underneath  
the firebox.  
D. Removing Fixed Glass Assembly  
WARNING! Risk of Asphyxiation! Handle fixed glass  
assembly with care. Inspect the gasket to ensure it is  
undamaged and inspect the glass for cracks, chips or  
scratches.  
DO NOT:  
• Strike, slam or scratch glass  
• Operate fireplace with glass removed, cracked,  
broken or scratched.  
Replace fixed glass assembly as a complete assembly.  
•
•
Remove screen.  
Pull the four (30/33/36 in. appliances) or seven (42 in.  
appliance) glass assembly latches out of the groove on  
the glass frame. Refer to Figure 15.4.  
Figure 15.1 Appliance Unwrapped  
•
Remove the glass assembly from the appliance.  
B. Remove Screen Package Assembly  
•
Grasp the top of the screen package and lift up to  
remove. See Figures 15.2 and 15.3.  
Latches  
(both bottom  
and top)  
Glass  
Assembly  
Figure 15.4 Glass Assembly  
E. Remove Top Log Pack  
The top log pack is shipped inside the firebox. When you  
remove the glass, the log pack will come out also.  
Figure 15.2 Lift up on Screen Package  
F. Remove Packing Material  
•
Remove packing material (Figure 15.5).  
Figure 15.3 Remove Screen Package  
60  
Figure 15.5 Remove Lytherm Pieces  
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G. Clean the Appliance  
L. Assemble Logs  
Clean/vacuum any sawdust that may have accumulated  
inside the firebox or underneath in the control cavity.  
•
Base logs have been permanently mounted on the  
burner pan/hearth sheet and should not be moved.  
H. Accessories  
Install approved accessories per instructions included  
with the accessories. Refer to Section 17.  
WARNING! Rick of Fire and Electric Shock! Use ONLY  
Hearth & Home Technologies-approved optional acces-  
sories with this appliance. Using non-listed accessories  
could result in a safety hazad and will void the warranty.  
I. Place the Rockwool  
Figure 15.7 Base Logs  
WARNING! Risk of Explosion! Follow rockwool place-  
ment instructions. DO NOT place rockwool directly over  
burner ports. Replace rockwool material annually. Improp-  
erly placed rockwool interferes with proper burner opera-  
tion.  
•
Install the left middle log by aligning the hole in the  
bottom of the log with the pin on the left side of the left  
bottom log.  
•
•
Rockwool is shipped with this gas appliance.  
Place a small amount of 1/2 in. diameter pieces (dime-  
size) rockwool on the burner pan so that the rockwool  
touches, but does not cover, the holes in the burner  
pan (refer to Figure 15.5). This will provide the “glowing  
embers” look.  
•
It is not necessary to use the entire bag. Save the  
remaining rockwool for future use.  
J. Place the Lava Rock  
See Figure 15.6.  
Figure 15.8 Install Left Middle Log  
•
Install the left top log by aligning the slot in the bottom  
of the left top log with the left pin in the back log. The  
back of the top log should set on the back log with the  
tip resting on the left middle log.  
Rockwool  
Lava Rock &  
Vermiculite  
Figure 15.6 Placement of Rockwool, Lava Rock and Vermiculite  
K. Place the Vermiculite  
Sprinkle on top of lava rock.  
Figure 15.9 Install Left Top Log  
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61  
•
Install the Right middle log by aligning the slot and hole  
in the bottom of the log with the two pins on the right  
end of the left bottom log.  
M.Replacing Fixed Glass Assembly  
•
Set the glass panel on the lower two or four glass  
assembly latches, ensuring the glass panel is centered  
in the opening.  
•
Replace glass latches. See Figure 15.4.  
N. Air Shutter Setting  
Air shutter setting should be adjusted by a qualified in-  
staller at the time of installation.  
•
•
•
The air shutter is set at the factory for minimum vertical  
vent run.  
Adjust air shutter for longer vertical runs. See  
Figure 15.12.  
Turn the thumbscrew to open and close.  
Figure 15.10Instell Right Middle Log  
•
Install the top right Y log by aligning the slot on the bottom  
of the log with the pin on the right side of the back log.  
The Y end of the log should rest on the top indent in the  
right middle log and the top of the right bottom log.  
Close  
Open  
Figure 15.12Adjusting Air Shutter  
Figure 15.11 Install Top Right Y Log  
62  
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O. Remove Screen Protector  
Q. Install Hood  
•
Cut the tape on top of the screen protector. See  
Figure 15.13.  
•
Locate the four screws just inside the upper section of  
the appliance.  
•
Open the screen protector and remove the screen. See  
Figure 15.14.  
•
•
Slide the hood into position uncer the screw heads.  
Tighten the four screws. See Figure 15.16.  
Figure 15.13Cut Packaging Tape  
Figure 15.16Intalling Hood  
R. Install Control Heat Shield  
The control heat shield shipped in the bottom of the ap-  
pliance MUST be placed over the control plate before  
operating the appliance. Not doing so may result in over-  
heating the controls on the plate.  
Install the Control Heat Shield  
•
Locate control heat shield (see Figure 15.17) and remove  
from appliance.  
Figure 15.14Remove Screen Protector  
P. Unpackage the Hood & Floor Cover  
Remove parts package from appliance as shown in Fig-  
ure 5.15.  
Control Heat Shield  
Figure 15.17Locate Control Heat Shield  
Figure 15.5 Removing Parts Package  
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63  
•
•
•
Bend four legs at 90° angle as shown in Figure 15.18.  
S. Install Floor Cover  
Install the floor cover as shown in Figure 15.20.  
Bend to a 90° angle  
Figure 15.18Bend Control Heat Shield Legs  
Figure 15.20Installing Floor Cover  
Place over control plate so that all of the control plate is  
covered and legs are on bottom pan of appliance. See  
Figure 15.19.  
Note: The floor cover in the bottom front of the fireplace  
may be covering the UL labels. It is loose and can be  
removed/replaced.  
Control Heat Shield in Place  
Figure 15.19Control Heat Shield - Installed  
Make sure all wires are under the top of the control heat  
shield and that there are no wires pinched between legs  
and the bottom pan.  
64  
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•
•
Rotate the screen in at the bottom until it touches the  
magnetic touch latches. See Figure 15.23.  
Press in on the bottom of the screen until the magnetic  
touch latches close. See Figure 15.24.  
T. Close the Screen Assembly  
•
Make sure the screen magnetic touch latches are in the  
open position. See Figure 15.21.  
•
Hange the screen on the shoulder screws in the columns.  
See Figure 15.22.  
Open  
Figure 15.23Rotate the Screen Down  
Figure 15.21Magnetic Touch Latch Open  
Hang Screen on Shoulder Screws  
Figure 15.24Press on Bottom of Screen  
Figure 15.22Hang Screen  
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65  
Troubleshooting  
16  
With proper installation, operation, and maintenance your gas appliance will provide years of trouble-free service. If you  
do experience a problem, this troubleshooting guide will assist a qualified service technician in the diagnosis of a problem  
and the corrective action to be taken. This troubleshooting guide can only be used by a qualified service technician. Con-  
tact your dealer to arrange a service call by a qualified service technician.  
A. Intellifire Plus™ Intermittent Ignition System  
Symptom  
Possible Cause  
Corrective Action  
1. Pilot won’t light.  
The ignitor/module  
makes noise, but no  
spark.  
A. Incorrect wiring.  
Verify “S” wire (white) for sensor and “I” wire (orange) for ignitor are  
connected to correct terminals on module and pilot assembly.  
B. Loose connections or electrical  
shorts in the wiring.  
Verify no loose connections or electrical shorts in wiring from mod-  
ule to pilot assembly. Verify connections underneath pilot assembly  
are tight; also verify igniter and flame sense wires are not grounding  
out to metal chassis, pilot burner, pilot enclosure, mesh screen if  
present, or any other metal object.  
C. Ignitor gap is too large.  
Verify gap of igniter to right side of pilot hood. The gap should be  
approximately .17 in. or 1/8 in. (3 mm).  
2. Pilot won’t light,  
there is no noise or  
spark.  
A. No power or transformer installed  
incorrectly.  
Verify that transformer is installed and plugged into module. Check  
voltage of transformer at connection to module. Acceptable read-  
ings of a good transformer are between 6.4 and 6.6 volts AC.  
B. A shorted or loose connection in  
wiring configuration or wiring har-  
ness.  
Remove and reinstall the wiring harness that plugs into module.  
Verify there is a tight fit. Verify pilot assembly wiring to module. Re-  
move and verify continuity of each wire in wiring harness. Replace  
any damaged components.  
C. Improper wall switch wiring.  
D. Module not grounded.  
Verify that 120/VAC power is “ON” to junction box.  
Verify black ground wire from module wire harness is grounded to  
metal chassis of appliance.  
3. Pilot sparks, but  
Pilot will not light.  
A. Gas supply.  
Verify that incoming gas line ball valve is “open”. Verify that inlet  
pressure reading is within acceptable limits.  
B. Ignitor gap is too large.  
Verify gap of igniter to right side of pilot hood. The gap should be  
approximately .17 in. or 1/8 in. (3 mm).  
C. Module is not grounded.  
D. Pilot valve solenoid  
Verify module is securely grounded to metal chassis of appliance.  
Verify that 1.5 to 1.8 VDC is supplied to pilot solenoid from module.  
If below 1.5 volts, replace module. If 1.5 volts or greater, replace  
valve.  
66  
Heatilator • Novus NNXT • 4055-879 • Rev. o • 2/12  
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Intellifire Plus Intermittent Pilot Ignition System - (continued)  
4. Pilot lights but con-  
tinues to spark, and  
main burner will not  
ignite. (If the pilot  
continues to spark  
after the pilot flame  
has been lit, flame  
rectification has not  
occurred.)  
A. A shorted or loose connection in  
Verify all connections to wiring diagram in manual. Verify connec-  
tions underneath pilot assembly are tight. Verify flame sense or ig-  
niter wires are not grounding out to metal chassis, pilot burner, pilot  
enclosure or screen if present, or any other metal object.  
flame sensing rod.  
B. Poor flame rectification or contami- With fixed glass assembly in place, verify that flame is engulfing  
nated flame sensing rod.  
flame sensing rod on left side of pilot hood. Flame sensing rod  
should glow shortly after ignition. With a multi-meter, verify that  
current in series between module and sense lead is at least 0.14  
microamps. Verify correct pilot orifice is installed and gas inlet is set  
to pressure specifications. Polish flame sensing rod with fine steel  
wool to remove any contaminants that may have accumulated on  
flame sensing rod.  
C. Module is not grounded.  
Verify module is securely grounded to metal chassis of appliance.  
Verify that wire harness is firmly connected to the module.  
D. Damaged pilot assembly or con-  
Verify that ceramic insulator around the flame sensing rod is not  
cracked, damaged, or loose. Verify connection from flame sensing  
rod to white sensor wire. Polish flame sensing rod with fine steel  
wool to remove any contaminants that may have accumulated on  
flame sensing rod. Verify continuity with a multi-meter with ohms set  
at lowest range. Replace pilot if any damage is detected.  
taminated flame sensing rod.  
Heatilator • Novus NNXT • 4055-879 • Rev. o • 2/12  
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67  
Reference Materials  
17  
A. Appliance Dimension Diagram  
Dimensions are actual appliance dimensions. Use for reference only. For framing dimensions and clearances refer to Section 5.  
C
Model  
A
B
C
NNXT3933  
in.  
mm  
in.  
38  
965  
41  
33  
838  
36  
11 5/8  
295  
14 5/8  
371  
19-1/8 in.  
(486 mm)  
NNXT4236  
mm  
1041  
916  
11-5/8in.  
(295 mm)  
A
Alternative  
Gas Access  
Gas Line  
Access  
31-1/2 in.  
(800 mm)  
34-1/2 in.  
(876 mm)  
Electrical  
Access  
2-3/8 in.  
34 in.  
(60 mm)  
(864 mm)  
6-1/2 in.  
(165 mm)  
B
3 in.  
(76 mm)  
1-1/2 in.  
(38 mm)  
1-3/4 in.  
(44 mm)  
8 in.  
(203 mm)  
15-3/4 in.  
(400 mm)  
23-1/2 in.  
(597 mm)  
Figure 17.1 Appliance Dimensions  
68  
Heatilator • Novus NNXT • 4055-879 • Rev. o • 2/12  
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B. Vent Components Diagrams  
Effective Height/Length  
4-7/8 in.  
(124 mm)  
mm  
Pipe  
DVP4  
DVP6  
inches  
4
6
102  
152  
10-1/2 in.  
(267 mm)  
45°  
Effective  
DVP12  
DVP24  
DVP36  
DVP48  
DVP6A  
DVP12A  
12  
24  
36  
48  
3 - 6  
3 - 12  
305  
610  
914  
1219  
76 - 152  
76 - 305  
Height/Length  
10-7/8 in.  
(276 mm)  
DVP45  
DVP Pipe  
45° Elbow  
(see chart)  
11-3/8 in.  
(289 mm)  
7-3/8 in.  
1 in.  
(25 mm)  
10 in.  
(254 mm)  
(187 mm)  
9-1/4 in.  
(235 mm)  
1-1/4 in.  
(32 mm)  
Assembled  
Height: 24 in./610 mm  
Diameter: 10 in./254 mm  
1/2 in.  
13-1/4 in.  
(337 mm)  
(13 mm) TYP  
DVP90ST  
DVP-FS  
DVP-AS2  
90° Elbow  
Ceiling Firestop  
12 in.  
(305 mm)  
6 in.  
(152 mm)  
1 in.  
(25 mm)  
1-1/2 in.  
(38 mm)  
10 in.  
(254 mm)  
8 in.  
(203 mm)  
UP  
14 in.  
(356 mm)  
12 in.  
(305 mm)  
5 in.  
(127 mm)  
DVP-WS  
Wall Shield Firestop  
DVP-HVS  
Vent Support  
Figure 17.2 DVP Vent Components  
Heatilator • Novus NNXT • 4055-879 • Rev. o • 2/12  
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69  
B. Vent Components Diagrams (continued)  
31 in.  
(787 mm)  
24-5/8 in.  
(625 mm)  
13-1/4 in.  
(367 mm)  
27-1/2 in.  
(698 mm)  
24-5/8 in.  
(625 mm)  
13-1/4 in.  
(367 mm)  
RF12M  
RF6M  
Roof Flashing Multi-pak  
Roof Flashing Multi-pak  
13-3/4 in.  
(349 mm)  
5 in.  
(127 mm)  
11-7/8 in.  
(302 mm)  
5 in.  
(127 mm)  
13-7/8 in.  
(352 mm)  
13-3/4 in.  
(349 mm)  
BEK  
DVP-BEK2  
Trap Cap Brick Extension  
DVP-HPC Cap Brick Extension  
11-5/8 in.  
(295 mm)  
12-1/8 in.  
(308 mm)  
7-1/8 in.  
(181 mm)  
5-3/4 in.  
(146 mm)  
COOL-ADD  
Cap Shield  
DVP-TRAPFL  
Flashing  
13-7/8 in.  
(352 mm)  
9-1/2 in.  
(241 mm)  
26 in.  
(660 mm)  
14 in.  
(356 mm)  
DVP-HSM-B  
Extended Heat Shield  
DRC-RADIUS  
Cap Shield  
Figure 17.3 DVP Vent Components  
70  
Heatilator • Novus NNXT • 4055-879 • Rev. o • 2/12  
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B. Vent Components Diagrams (continued)  
7-3/8 in.  
(187 mm)  
9 in.  
(229 mm)  
1-1/2 in.  
(38 mm)  
12-1/2 in.  
(317 mm)  
2-3/4 in.  
(70 mm)  
11-1/2 in.  
(280 mm)  
17-3/4 in.  
(451 mm)  
14 in.  
(356 mm)  
12-1/4 in.  
(311 mm)  
16 in.  
(406 mm)  
12 in.  
PVK-80  
(305 mm)  
(For use with IPI and DSI appliances only.)  
DVP-TB1  
Basement Vent Cap  
3-7/8 in.  
(98 mm)  
10-1/2 in.  
(267 mm)  
7-1/4 in.  
(184 mm)  
12-1/2 in.  
(318 mm)  
DVP-TV  
Vertical Termination Cap  
5-1/4 in.  
(133 mm)  
7-1/4 in.  
(184 mm)  
1 in.  
(25 mm)  
DVP-TVHW  
(High wind)  
Vertical Termination Cap  
14 in.  
(356 mm)  
16-7/8 in.  
(429 mm)  
14 in.  
(356 mm)  
3/8 in. (10 mm)  
1 in. (25 mm)  
7-3/4 to 10-3/8 in.  
(197 to 264 mm)  
12 in.  
(305 mm)  
DVP-FBHT  
Fire Brick Termination Cap  
7-1/8 in.  
(181 mm)  
12-1/8 in.  
(314 mm)  
8-3/4 in.  
(222 mm)  
1-5/8 in.  
(41 mm)  
DVP-HPC  
High Performance Cap  
Figure 17.4 DVP Vent Components  
Heatilator • Novus NNXT • 4055-879 • Rev. o • 2/12  
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71  
B. Vent Components Diagrams (continued)  
Note: Heat shields MUST overlap by a minimum of 1-1/2 in. (38 mm). The heat shield is designed to be  
used on a wall 4 in. to 7-1/4 in. (102 mm to 184 mm) thick. If wall thickness is less than 4 in. (102 mm) the  
existing heat shields must be field trimmed. If wall thickness is greater than 7-1/4 in. (184 mm) a DVP-HSM-B  
will be required.  
8 in.  
(203 mm)  
Heat  
Shield  
15-1/8 in.  
(384 mm)  
Minimum  
Effective Length  
Maximum  
Effective Length  
Term Cap  
Trap1  
3-1/8 in.  
79 mm  
4-5/8 in.  
117 mm  
9-3/8 in.  
238 mm  
Max  
Effective  
Length  
5-3/8 in.  
137 mm  
12 in.  
(305 mm)  
Trap2  
DVP-TRAP  
Horizontal Termination Cap  
DVP-TRAP1  
DVP-TRAPK1  
DVP-TRAPK2  
DVP-HPC2  
DVP-TRAP2  
DVP-HPC1  
Figure 17.5 DVP Vent Components  
72  
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B. Vent Components Diagrams (continued)  
Fillers  
DVP-TRAP to DVP-HPC Side Filler Kit  
8-1/8 in.  
13 in.  
(206 mm)  
(330 mm)  
15 in.  
(381 mm)  
DVP-HRC-SS  
Effective Length  
5-3/4 to 8-3/8 in.  
146 to 213 mm  
5-1/2 in. 8-3/8 in.  
140 mm 213 mm  
3°  
87°  
10-1/2 in.  
267 mm  
10-7/8 in.  
276 mm  
DVP-HRC-ZC-SS  
Figure 17.6 DVP Vent Components  
Heatilator • Novus NNXT • 4055-879 • Rev. o • 2/12  
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73  
B. Vent Components Diagrams (continued)  
6-1/2 in.  
165 mm  
6-1/2 in.  
165 mm  
6-1/2 in.  
165 mm  
8-3/4 in.  
222 mm  
9-1/4 in.  
235 mm  
6 in.  
152 mm  
6-5/8 in.  
168 mm  
6-5/8 in.  
168 mm  
SLP45  
45° Elbow  
9-7/8 in.  
251 mm  
SLP90-ST  
90° Elbow  
Effective  
Height/  
Length  
6-1/2 in.  
165 mm  
Effective Height/Length  
Pipe  
SLP4  
inches  
4
mm  
102  
152  
SLP6  
6
SLP12  
SLP24  
SLP36  
SLP48  
SLP6A  
SLP12A  
12  
305  
SLP PIPE  
24  
610  
25-3/16 in.  
640 mm  
36  
914  
48  
1219  
51 - 152  
51 - 305  
2 - 6  
2 - 12  
10-7/8 in.  
276 mm  
8-1/16 in.  
205 mm  
1-1/2 in.  
38 mm  
8-7/8 in.  
225 mm  
DVP-SLP24  
Adapter  
SLP-HVS  
Horizontal Pipe  
Support  
8-11/16 in.  
220 mm  
12 in.  
305 mm  
8-11/16 in.  
220 mm  
1-1/2 in.  
38 mm  
12 in.  
305 mm  
5-1/2 in.  
146 mm  
SLP-WS  
SLP-FS  
Wall Shield Firestop  
Ceiling Firestop  
Figure 17.7 SLP Series Vent Components  
74  
Heatilator • Novus NNXT • 4055-879 • Rev. o • 2/12  
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B. Vent Components Diagrams (continued)  
Note: Heat shields MUST overlap by a minimum of 1-1/2 in. (38 mm). The heat shield is designed to be  
used on a wall 4 in. to 7-1/4 in. (102 mm to 184 mm) thick. If wall thickness is less than 4 in. (102 mm)  
the existing heat shields must be field trimmed. If wall thickness is greater than 7-1/4 in. (184 mm) a  
DVP-HSM-B will be required.  
8 in.  
(203 mm)  
Heat  
Shield  
15-1/8 in.  
(384 mm)  
Minimum  
Effective Length  
Maximum  
Effective Length  
Term Cap  
Trap1  
Max  
3-1/8 in.  
79 mm  
4-3/4 in.  
121 mm  
9-1/4 in.  
235 mm  
Effective  
Length  
12 in.  
(305 mm)  
5-1/4 in.  
133 mm  
Trap2  
SLP-TRAP  
Horizontal Termination Cap  
6-11/16 in.  
(169 mm)  
3-15/16 in.  
(101 mm)  
3-15/16 in.  
(101 mm)  
3-13/16 in.  
(97 mm)  
5-1/16 in.  
(128 mm)  
8 in.  
(203 mm)  
8-1/8 in.  
(206 mm)  
13 in.  
(330 mm)  
SL-2DVP  
Adapter  
15 in.  
(381 mm)  
26 in.  
660 mm  
DVP-HSM-B  
SLP-HRC-SS  
Extended Heat Shield  
Effective Length  
5-3/4 to 8-3/8 in.  
146 to 213 mm  
5-1/2 in. 8-3/8 in.  
140 mm 213 mm  
3°  
87°  
14-7/16 in.  
367 mm  
10-1/2 in.  
267 mm  
10-7/8 in.  
276 mm  
2-5/16 in.  
59 mm  
14-7/16 in.  
367 mm  
SLP-WT-BK  
Wall Thimble-Black  
SLP-HRC-ZC-SS  
Figure 17.8 SLP Series Vent Components  
Heatilator • Novus NNXT • 4055-879 • Rev. o • 2/12  
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75  
B. Vent Components Diagrams (continued)  
13 in.  
14 in.  
330 mm  
356 mm  
1-5/16 in.  
34 mm  
13 in.  
330 mm  
10-9/16 in.  
269 mm  
SLP-DCF-BK  
Ceiling Firestop  
Black  
SLP-CCS-BK  
Cathedral Ceiling  
Support Box-Black  
12 in.  
9 in.  
305 mm  
12-1/2 in.  
(317 mm)  
(229 mm)  
2-3/4 in.  
(70 mm)  
12-1/2 in.  
318 mm  
11-1/2 in.  
(280 mm)  
12-1/4 in.  
(311 mm)  
8-1/16 in.  
205 mm  
16 in.  
(406 mm)  
SLP-TVHW  
Vertical  
Termination Cap  
PVK-80  
(For use with IPI and DSI appliances only.)  
10-11/16 in.  
271mm  
7-1/4 in.  
(184 mm)  
1 in.  
(25 mm)  
28-1/2 in.  
724 mm  
14 in.  
(356 mm)  
3/8 in. (10 mm)  
1 in. (25 mm)  
13-1/2 in.  
343 mm  
7-3/4 to 10-3/8 in.  
(197 to 264 mm)  
DVP-FBHT  
Horizontal  
SLK-SNKD  
Snorkel  
Termination Cap  
Termination Cap  
Figure 17.9 SLP Series Vent Components  
76  
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NNXT3933I, NNXT4236I  
C. Service Parts  
Novus DV Heater IPI Appliance  
Beginning Manufacturing Date: Aug 2009  
Ending Manufacturing Date: ______  
10  
11  
8
8
12  
13  
14  
07  
15  
26  
25  
16  
24  
23  
22  
20  
17  
21  
19  
18  
Log Set Assembly  
7
5
1
6
4
3
2
Part number list on following page.  
Heatilator • Novus NNXT • 4055-879 • Rev. o • 2/12  
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77  
C. Service Parts (continued)  
NNXT3933I, NNXT3933IL  
IMPORTANT: THIS IS DATED INFORMATION. When requesting service or replacement parts for  
your appliance please provide model number and serial number. All parts listed in this manual may  
be ordered from an authorized dealer.  
Stocked  
at Depot  
ITEM  
DESCRIPTION  
COMMENTS  
PART NUMBER  
4055-976  
Log Assembly  
Back Log  
Y
1
2
3
SRV4055-966  
SRV4055-967  
SRV4055-969  
SRV4055-974  
SRV4055-970  
SRV4055-971  
SRV4055-972  
SRV4055-973  
25844  
Bottom Right Log  
Bottom Left Log  
Log Assembly, Top and Middle  
Middle Right Log  
Top Right Log  
4
5
6
Middle Left Log  
Top Left Log  
7
8
Intake Cover Gasket  
Intake Cover Gasket  
Non Combustible Board  
Dry Wall Lip  
9
4031-239  
10  
11  
12  
13  
14  
15  
16  
17  
18  
4055-895  
4055-893  
Hood  
4055-215  
Heater Baffle  
4055-881  
Hearth Pan  
4055-874  
Valve Assembly  
Glass Frame Assembly  
Screen Assembly  
Floor Cover  
Refer to valve page.  
GLA4000-307  
SRV4055-991  
4055-274  
Y
Y
Burner Assembly NG  
Burner Assemlby LP  
Gasket Valve Plate  
Glass Latch Assembly  
Magnetic Touch Latch  
Junction Box  
4055-882  
Y
Y
19  
4055-896  
20  
21  
22  
23  
24  
25  
26  
27  
4055-135  
Pkg of 2  
33858/2  
Y
Y
Y
Qry 2 req  
4021-650  
4021-013  
Cover Plate  
4031-222  
Junction Box Shield  
Nailing Flange  
4055-888  
Qty 4 req  
4044-161  
Back Gasket  
4000-225  
Cord Clip  
14218  
Refractory, Back  
Refractory, Right Side  
Refractory, Left Side  
Refractory, Top  
4055-856  
4055-859  
4055-860  
4055-866  
Conversion Kit NG  
Conversion Kit LP  
Pilot Orifice NG  
Pilot Orifice LP  
DCKVN-NNXT  
DCKVP-NNXT  
593-528  
Y
Y
Y
Y
Y
Y
593-527  
Regulator NG  
NGK-DXV-50  
LPK-DXV-50  
Regulator LP  
Additional service parts on following page.  
78  
Heatilator • Novus NNXT • 4055-879 • Rev. o • 2/12  
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C. Service Parts (continued)  
NNXT4236I, NNXT4236IL  
IMPORTANT: THIS IS DATED INFORMATION. When requesting service or replacement parts for  
your appliance please provide model number and serial number. All parts listed in this manual may  
be ordered from an authorized dealer.  
Stocked  
at Depot  
ITEM  
DESCRIPTION  
COMMENTS  
PART NUMBER  
4055-976  
Log Assembly  
Back Log  
Y
1
2
3
SRV4055-966  
SRV4055-967  
SRV4055-969  
SRV4055-974  
SRV4055-970  
SRV4055-971  
SRV4055-972  
SRV4055-973  
25844  
Bottom Right Log  
Bottom Left Log  
Log Assembly, Top and Middle  
Middle Right Log  
Top Right Log  
4
5
6
Middle Left Log  
Top Left Log  
7
8
Intake Cover Gasket  
Intake Cover Gasket  
Non Combustible Board  
Dry Wall Lip  
9
4031-239  
10  
11  
12  
13  
14  
15  
16  
17  
18  
4055-895  
4055-893  
Hood  
4055-215  
Heater Baffle  
4055-881  
Hearth Pan  
4055-874  
Valve Assembly  
Glass Frame Assembly  
Screen Assembly  
Floor Cover  
Refer to valve page.  
GLA4000-307  
SRV4055-991  
4055-274  
Y
Y
Burner Assembly NG  
Burner Assemlby LP  
Gasket Valve Plate  
Glass Latch Assembly  
Magnetic Touch Latch  
Junction Box  
4055-882  
Y
Y
19  
4055-896  
20  
21  
22  
23  
24  
25  
26  
27  
4055-135  
Pkg of 2  
33858/2  
Y
Y
Y
Qry 2 req  
4021-650  
4021-013  
Cover Plate  
4031-222  
Junction Box Shield  
Nailing Flange  
4055-888  
Qty 4 req  
4044-161  
Back Gasket  
4000-225  
Cord Clip  
14218  
Refractory, Back  
Refractory, Right Side  
Refractory, Left Side  
Refractory, Top  
4055-856  
4055-859  
4055-860  
4055-866  
Conversion Kit NG  
Conversion Kit LP  
Pilot Orifice NG  
Pilot Orifice LP  
DCKVN-NNXT  
DCKVP-NNXT  
593-528  
Y
Y
Y
Y
Y
Y
593-527  
Regulator NG  
NGK-DXV-50  
LPK-DXV-50  
Regulator LP  
Additional service parts on following page.  
Heatilator • Novus NNXT • 4055-879 • Rev. o • 2/12  
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79  
NNXT3933I, NNXT4236I  
C. Service Parts  
Beginning Manufacturing Date: Aug 2009  
Ending Manufacturing Date: ______  
#16 Ignition Control Assembly  
#15 Valve Assembly  
15.1  
15.2  
15.3  
15.4  
15.5  
15.12  
15.6  
16.2  
15.11  
15.10  
15.7  
15.9  
16.4  
16.1  
16.3  
15.8  
IMPORTANT: THIS IS DATED INFORMATION. When requesting service or replacement  
parts for your appliance please provide model number and serial number. All parts listed  
in this manual may be ordered from an authorized dealer.  
Stocked  
at Depot  
ITEM  
DESCRIPTION  
COMMENTS  
PART NUMBER  
4055-889  
2090-012  
2090-013  
4021-042  
4055-202  
4055-205  
302-320A  
2166-302  
2166-303  
303-315/5  
2166-305  
2166-304  
4021-429  
4021-512  
4055-964  
2166-307  
4055-899  
2166-325  
2166-323  
582-839  
15.1  
Pilot Shield  
Pilot Assembly NG  
Pilot Assembly LP  
Pilot Gasket  
Y
Y
15.2  
15.3  
15.4  
15.5  
15.6  
Air Shutter Assembly  
Valve Bracket  
Y
Flex Ball Valve Assembly  
Valve NG  
Y
Y
Y
Y
Y
Y
15.7  
Valve LP  
15.8  
15.9  
15.10  
15.11  
15.12  
16  
Male Connector  
Transformer  
Pkg of 5  
Wire Harness  
Gasket, Bulkhead  
Bulkhead W/Flex Tube  
Igntion Control Assembly  
Control Module  
Control Plate  
Y
Y
Y
16.1  
16.2  
16.3  
16.4  
AuxRC200  
Y
Y
Y
Y
Battery Pack  
Orifice NG (#39C)  
Orifice LP (#52C)  
582-852  
80  
Heatilator • Novus NNXT • 4055-879 • Rev. o • 2/12  
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D. Optional Components  
20 in.  
[508 mm]  
C
17 in.  
[432 mm]  
9-3/8 in.  
[238 mm]  
D
B
A
LDS33/LDS46 Decorative Shroud  
TCG375 Terra Cotta Cap  
A
B
C
D
Catalog # in. mm in. mm in. mm in. mm  
LDS33  
LDS46  
36  
914  
36  
914 8.5 216  
11  
11  
279  
279  
48 1219 72 1829 8.5 216  
E
D
LDSCP-M Shroud Leg Multipack  
(not shown)  
C
B
A
LDS-BV Decorative Shroud  
Catalog #  
A
26  
B
C
E
E
23  
in.  
12.5  
318  
15.5  
394  
22  
LDS-BV  
mm  
660  
533  
584  
See your Heatilator dealer for a complete listing of optional components.  
Heatilator • Novus NNXT • 4055-879 • Rev. o • 2/12  
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81  
E. Contact Information  
Please contact your Heatilator dealer with any questions or concerns.  
For the location of your nearest Heatilator dealer,  
please visit www.heatilator.com.  
Heatilator, a brand of Hearth & Home Technologies Inc.  
7571 215th Street West, Lakeville, MN 55044  
www.heatilator.com  
- NOTES -  
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NOTICE  
DO NOT DISCARD THIS MANUAL  
• Important operating  
and maintenance  
instructions included.  
• Read, understand and follow  
these instructions for safe  
installation and operation.  
• Leave this manual with  
party responsible for use  
and operation.  
This product may be covered by one or more of the following patents: (United States) 5328356, 5601073, 5613487,  
5647340, 5890485, 5941237, 5947112, 5996575, 6006743, 6019099, 6053165, 6145502, 6170481, 6374822, 6484712,  
6601579, 6769426, 6863064, 7077122, 7098269, 7258116, 7470729 or other U.S. and foreign patents pending.  
2000-945  
Printed in U.S.A. - Copyright 2012  
82  
Heatilator • Novus NNXT • 4055-879 • Rev. o • 2/12  
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