Desa Water Heater CY2718N User Manual

MOUNTAIN OAK, PREMIUM AGED SPLIT OAK,  
AND SMOKY MOUNTAIN OAK UNVENTED  
(VENT-FREE) NATURAL GAS LOG HEATERS  
VARIABLE MANUALLY-CONTROLLED MODELS ALSO DESIGN-CERTIFIED  
AS VENTED DECORATIVE APPLIANCES  
OWNER’S OPERATION AND INSTALLATION MANUAL  
CGD3018N  
CGD3924N  
CGD3930N  
CY2718N  
CY3124N  
18", 24", and 30"  
Variable Manually-Controlled Models  
CGD3018NT  
CGD3930NT  
CGB3930NT  
CGD3924NT  
CGB3924NT  
®
Patent Pending  
18", 24" and 30" Thermostatically-  
Controlled Models  
(Smoky Mountain Oak Model Shown)  
WARNING:Improperinstallation,adjust-  
ment,alteration,service,ormaintenance  
can cause injury or property damage.  
Refer to this manual for correct installa-  
tion and operational procedures. For  
assistance or additional information  
consult a qualified installer, service  
agency, or the gas supplier.  
WARNING: If the information in this  
manual is not followed exactly, a fire or  
explosion may result causing property  
damage, personal injury, or loss of life.  
— Do not store or use gasoline or other  
flammable vapors and liquids in the  
vicinity of this or any other appliance.  
— 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.  
WARNING: This appliance is for instal-  
lation only in a solid-fuel burning ma-  
sonry or UL127 factory-built fireplace,  
or in an approved ventless firebox. It is  
design-certified for these installations  
in accordance with ANS Z21.11.2.  
Exception: Do not install this appliance  
in a factory-built fireplace that includes  
instructions stating it has not been  
tested or should not be used with  
unvented gas logs.  
• If you cannot reach your gas sup-  
plier, call the fire department.  
— Installation and service must be per-  
formed by a qualified installer, service  
agency, or the gas supplier.  
WARNING: This is an unvented gas-fired heater. It uses air (oxygen) from the room in  
which it is installed. Provisions for adequate combustion and ventilation air must be  
provided. RefertoAirforCombustionandVentilationsectiononpage4ofthismanual.  
This appliance may be installed in an aftermarket* manufactured (mobile) home, where not prohibited  
by state or local codes.  
* Aftermarket: Completion of sale, not for purpose of resale, from the manufacturer  
Save this manual for future reference.  
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OWNER’S MANUAL  
PRODUCT  
LOCAL CODES  
Installanduseheaterwithcare.Followalllocal  
codes. In the absence of local codes, use the  
latest edition of The National Fuel Gas Code  
ANS Z223.1, also known as NFPA 54*.  
IDENTIFICATION  
Crossover Log  
Back Log  
*Available from:  
American National Standards Institute, Inc.  
1430 Broadway  
Front Log  
New York, NY 10018  
National Fire Protection Association, Inc.  
Batterymarch Park  
Quincy, MA 02269  
Note: Where listed vented decorative logs  
are required, thermostat models are not  
Burner  
permitted.  
UNPACKING  
Middle Log  
Piezo  
Ignitor  
CAUTION: Do not remove the  
metal Data Plates from the grate  
assembly.TheDataPlatescontain  
important product information.  
Control Knob  
Base Grate  
1. Remove logs and heater base assem-  
bly from carton. Note: Do not pick up  
heater base assembly by burners. This  
could damage heater. Always handle  
base assembly by grate.  
Figure 1 - Vent-Free Gas Log Heater - Duel Burner (Logs May Vary by Model -  
Yellow Flame Logs Shown)  
2. Remove all protective packaging ap-  
plied to logs and heater for shipment.  
Back Log  
Crossover Log  
3. Check all items for any shipping dam-  
age. If damaged, promptly inform  
dealer where you bought heater.  
Front Log  
PRODUCT  
FEATURES  
OPERATION  
This heater is clean burning. It requires no  
outside venting. There is no heat loss out a  
vent or up a chimney. Heat is generated by  
realistic,dancingyellowflames.Thisheater  
is designed for vent-free operation with flue  
damper closed. It has been tested and ap-  
proved to ANS Z21.11.2 standard for  
unvented heaters. State and local codes in  
some areas prohibit the use of vent-free  
heaters. Non-thermostat models may also  
be operated as a vented decorative (ANS  
Z21.60) product by opening flue damper.  
Burner  
Piezo  
Ignitor  
Control Knob  
Figure 2 - Vent-Free Gas Log Heater - Single Burner (Mountain Oak Logs Shown)  
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VENT-FREE NATURAL GAS LOG HEATER  
Confined and Unconfined Space  
PROVIDING ADEQUATE  
VENTILATION  
PRODUCT  
The National Fuel Gas Code (ANS Z223.1,  
1992 Section 5.3) defines a confined space  
as a space whose volume is less than 50  
cubic feet per 1,000 Btu per hour (4.8 m3 per  
kw) of the aggregate input rating of all  
appliances installed in that space and an  
unconfined space as a space whose volume  
is not less than 50 cubic feet per 1,000 Btu  
per hour (4.8 m3 per kw) of the aggregate  
inputratingofallappliancesinstalledinthat  
space. Rooms communicating directly with  
the space in which the appliances are in-  
stalled*, through openings not furnished  
with doors, are considered a part of the  
unconfined space.  
FEATURES  
The following are excerpts from National  
Fuel Gas Code. NFPA 54/ANS Z223.1, Sec-  
tion5.3,AirforCombustionandVentilation.  
Continued  
SAFETY PILOT  
This heater has a pilot with an Oxygen  
Depletion Sensor Shutoff System (ODS).  
TheODS/pilotisarequiredfeatureforvent-  
free room heaters. The ODS/pilot shuts off  
the heater if there is not enough fresh air.  
All spaces in homes fall into one of the three  
following ventilation classifications:  
1. Unusually Tight Construction  
2. Unconfined Space  
3. Confined Space  
PIEZO IGNITION SYSTEM  
This heater has a piezo ignitor. This system  
requires no matches, batteries, or other  
sources to light heater.  
The information on pages 4 through 6 will  
help you classify your space and provide  
adequate ventilation.  
Unusually Tight Construction  
This heater shall not be installed in a con-  
fined space or unusually tight construction  
unless provisions are provided for adequate  
combustion and ventilation air.  
AIR FOR  
The air that leaks around doors and win-  
dows may provide enough fresh air for  
combustion and ventilation. However, in  
buildings of unusually tight construction,  
you must provide additional fresh air.  
COMBUSTION AND  
VENTILATION  
* Adjoining rooms are communicating only  
iftherearedoorlesspassagewaysorventila-  
tion grills between them.  
WARNING: This heater shall  
notbeinstalledinaconfinedspace  
or unusually tight construction  
unless provisions are provided  
foradequatecombustionandven-  
tilation air. Read the following in-  
structions to insure proper fresh  
air for this and other fuel-burning  
appliances in your home.  
Unusually tight construction is de-  
fined as construction where:  
a. walls and ceilings exposed to the  
outside atmosphere have a con-  
tinuous water vapor retarder with  
a rating of one perm (6 x 10-11 kg  
per pa-sec-m2) or less with open-  
ings gasketed or sealed and  
b. weather stripping has been  
added on openable windows and  
doors and  
Today’s homes are built more energy effi-  
cient than ever. New materials, increased  
insulation, and new construction methods  
helpreduceheatlossinhomes.Homeowners  
weather strip and caulk around windows and  
doorstokeepthecoldairoutandthewarmair  
in. During heating months, home owners  
want their homes as airtight as possible.  
c. caulking or sealants are applied  
to areas such as joints around  
window and door frames, be-  
tween sole plates and floors, be-  
tween wall-ceiling joints, be-  
tween wall panels, at penetra-  
tions for plumbing, electrical, and  
gas lines, and at other openings.  
While it is good to make your home energy  
efficient, your home needs to breathe. Fresh  
air must enter your home. All fuel-burning  
appliances need fresh air for proper com-  
bustion and ventilation.  
If your home meets all of the three  
criteria above, you must provide ad-  
ditional fresh air. See Ventilation Air  
From Outdoors, page 6.  
Exhaustfans, fireplaces, clothesdryers, and  
fuel burning appliances draw air from the  
house to operate. You must provide ad-  
equate fresh air for these appliances. This  
will insure proper venting of vented fuel-  
burning appliances.  
If your home does not meet all of the  
three criteria above, proceed to De-  
termining Fresh-Air Flow for Heater  
Location, page 5.  
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OWNER’S MANUAL  
AIR FOR  
COMBUSTION AND  
VENTILATION  
Continued  
DETERMINING FRESH-AIR FLOW FOR HEATER LOCATION  
Determining if You Have a Confined or Unconfined Space  
Use this work sheet to determine if you have a confined or unconfined space.  
Space:Includestheroominwhichyouwillinstallheaterplusanyadjoiningroomswithdoorlesspassagewaysorventilationgrillsbetween  
the rooms.  
1. Determine the volume of the space (length x width x height).  
Length x Width x Height = _________________ cu. ft. (volume of space)  
Example: Space size 20 ft. (length) x 16 ft. (width) x 8 ft. (ceiling height) = 2560 cu. ft. (volume of space)  
If additional ventilation to adjoining room is supplied with grills or openings, add the volume of these rooms to the total volume of  
the space.  
2. Divide the space volume by 50 cubic feet to determine the maximum Btu/Hr the space can support.  
____________(volume of space) ÷ 50 cu. ft. = (Maximum Btu/Hr the space can support)  
Example: 2560 cu. ft. (volume of space) ÷ 50 cu. ft. = 51.2 or 51,200 (maximum Btu/Hr the space can support)  
3. Add the Btu/Hr of all fuel burning appliances in the space.  
Vent-free heater  
Gas water heater*  
Gas furnace  
______________ Btu/Hr  
______________ Btu/Hr  
______________ Btu/Hr  
______________ Btu/Hr  
______________ Btu/Hr  
Example:  
Gas water heater  
Vent-free heater  
Total  
40,000  
39,000  
79,000  
Btu/Hr  
Btu/Hr  
Btu/Hr  
Vented gas heater  
Gas fireplace logs  
+
=
Other gas appliances* + ______________ Btu/Hr  
Total ______________ Btu/Hr  
=
* Do not include direct-vent gas appliances. Direct-vent draws combustion air from the outdoors and vents to the outdoors.  
4. Compare the maximum Btu/Hr the space can support with the actual amount of Btu/Hr used.  
_________________ Btu/Hr (maximum the space can support)  
_________________ Btu/Hr (actual amount of Btu/Hr used)  
Example: 51,200 Btu/Hr (maximum the space can support)  
79,000 Btu/Hr (actual amount of Btu/Hr used)  
The space in the above example is a confined space because the actual Btu/Hr used is more than the maximum Btu/Hr the space cansupport.  
You must provide additional fresh air. Your options are as follows:  
A. Rework worksheet, adding the space of an adjoining room. If the extra space provides an unconfined space, remove door to adjoin-  
ing room or add ventilation grills between rooms. See Ventilation Air From Inside Building, page 6.  
B. Vent room directly to the outdoors. See Ventilation Air From Outdoors, page 6.  
C. Install a lower Btu/Hr heater, if lower Btu/Hr size makes room unconfined.  
If the actual Btu/Hr used is less than the maximum Btu/Hr the space can support, the space is an unconfined space. You will need no  
additional fresh air ventilation.  
WARNING: If the area in which the heater may be operated is smaller than that defined as an unconfined space  
or if the building is of unusually tight construction, provide adequate combustion and ventilation air by one of  
the methods described in the National Fuel Gas Code, ANS Z223.1, 1992, Section 5.3 or applicable local codes.  
Continued  
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VENT-FREE NATURAL GAS LOG HEATER  
AIR FOR  
12"  
COMBUSTION AND  
VENTILATION  
Ventilation  
Continued  
Ventilation Grills  
Into Adjoining Room,  
Option 2  
Grills  
Into Adjoining  
Room,  
Or  
VENTILATION AIR  
Remove  
Door into  
Adjoining  
Room,  
Option  
3
Option 1  
Ventilation Air From Inside  
Building  
Thisfreshairwouldcomefromanadjoining  
unconfined space. When ventilating to an  
adjoining unconfined space, you must pro-  
vide two permanent openings: one within  
12" of the ceiling and one within 12" of the  
floor on the wall connecting the two spaces  
(see options 1 and 2, Figure 3). You can also  
remove door into adjoining room (see op-  
tion 3, Figure 3). Follow the National Fuel  
Gas Code NFPA 54/ANS Z223.1, Section  
5.3, Air for Combustion and Ventilation for  
required size of ventilation grills or ducts.  
12"  
Figure 3 - Ventilation Air from Inside Building  
WARNING: Rework work-  
sheet, adding the space of the  
adjoining unconfined space. The  
combined spaces must have  
enough fresh air to supply all  
appliances in both spaces.  
Ventilated  
Outlet  
Attic  
Air  
Outlet  
Air  
Ventilation Air From Outdoors  
To Attic  
Provide extra fresh air by using ventilation  
grills or ducts. You must provide two per-  
manent openings: one within 12" of the  
ceiling and one within 12" of the floor.  
Connect these items directly to the outdoors  
orspacesopentotheoutdoors.Thesespaces  
include attics and crawl spaces.  
To  
Crawl  
Space  
Inlet  
Air  
Ventilated  
Crawl Space  
IMPORTANT: Do not provide openings for  
inlet or outlet air into attic if attic has a  
thermostat-controlledpowervent.Heatedair  
enteringtheatticwillactivatethepowervent.  
Inlet Air  
Figure 4 - Ventilation Air from Outdoors  
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OWNER’S MANUAL  
INSTALLATION AND  
CLEARANCES (Vent-Free  
Operation Only)  
INSTALLATION  
WARNING: Never install the  
heater  
NOTICE: This heater is intended  
foruseassupplementalheat.Use  
this heater along with your pri-  
mary heating system. Do not in-  
stall this heater as your primary  
heat source. If you have a central  
heating system, you may run  
system’scirculatingblowerwhile  
using heater. This will help circu-  
late the heat throughout the  
house. In the event of a power  
outage, you can use this heater  
as your primary heat source.  
• in a bedroom or bathroom un-  
less installed as a vented ap-  
pliance (Variable Manually-  
Controlled Models Only) (see  
page 10)  
• in a recreational vehicle  
• where curtains, furniture,  
clothing, or other flammable  
objectsarelessthan42inches  
from the front, top, or sides of  
the heater  
WARNING:Maintainthemini-  
mum clearances. If you can, pro-  
vide greater clearances from  
floor, ceiling, and adjoining wall.  
MINIMUM FIREPLACE CLEARANCE  
TO COMBUSTIBLE MATERIALS  
Log Size  
Side Wall Ceiling  
16" 42"  
• in high traffic areas  
• in windy or drafty areas  
18", 24", 30"  
LOG SIZING REQUIREMENTS  
Minimum Firebox Size  
NOTICE: A qualified service per-  
son must install heater. Follow  
all local codes.  
CAUTION: This heater cre-  
ates warm air currents. These  
currents move heat to wall sur-  
faces next to heater. Installing  
heater next to vinyl or cloth wall  
coverings or operating heater  
where impurities (such as to-  
bacco smoke, aromatic candles,  
cleaning fluids, oil or kerosene  
lamps, etc) in the air exist, may  
discolor walls.  
Log  
Front Rear*  
Size Height Depth Width Width  
NOTICE:Stateorlocalcodesmay  
onlyallowoperationofthisappli-  
ance in a vented configuration.  
Check your state or local codes.  
18" 17"  
24" 17"  
30" 17"  
14"  
14"  
14"  
24"  
28"  
34"  
20"  
21"  
24"  
*Measured at 14" Depth  
WARNING: Before installing  
in a solid fuel burning fireplace,  
thechimneyflueandfireboxmust  
be cleaned of soot, creosote,  
ashes and loose paint by a quali-  
fied chimney cleaner. Creosote  
will ignite if highly heated. A dirty  
chimney flue may create and dis-  
tribute soot within the house. In-  
spectchimneyfluefordamage. If  
damaged,operateheaterwithflue  
damper closed.  
Carefullyfollowtheinstructionsbelow.This  
will ensure safe installation into a masonry,  
UL127-listed manufactured fireplace, or  
listed vent-free firebox.  
IMPORTANT:Vent-freeheatersaddmois-  
ture to the air. Although this is beneficial,  
installing heater in rooms without enough  
ventilation air may cause mildew to form  
from too much moisture. See Air for Com-  
bustion and Ventilation, pages 4 through 6.  
Minimum Wall and Ceiling  
Clearances (see Figure 5)  
A. Clearances from the side of the fire-  
place opening to any combustible wall  
should not be less than 16 inches.  
B. Clearances from the top of the fireplace  
opening to the ceiling should not be less  
than 42 inches.  
CHECK GAS TYPE  
Use only natural gas. If your gas supply is  
not natural gas, do not install heater. Call  
dealer where you bought heater for proper  
type heater.  
WARNING: Seal any fresh air  
vents or ash clean-out doors lo-  
catedonfloororwalloffireplace.  
If not, drafting may cause pilot  
outage or sooting. Use a heat-  
resistant sealant. Do not seal  
chimney flue damper.  
42"  
16"  
Left and  
Right Sides  
Figure5-MinimumClearancetoWalland  
Ceiling  
Continued  
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VENT-FREE NATURAL GAS LOG HEATER  
If Using Mantel  
INSTALLATION  
You must have noncombustible material(s)  
above the fireplace opening. Noncombus-  
tible materials (such as slate, marble, tile,  
etc.) must be at least 1/2 inch thick. With  
sheet metal, you must have noncombustible  
material behind it. Noncombustible mate-  
rial must extend at least 8 inches up (for all  
models). If noncombustible material is less  
than 12", you must install the fireplace hood  
accessory (24" and 30" models only). Even  
if noncombustible material is more than  
12", you may need the hood accessory to  
deflect heat away from your mantel shelf.  
Continued  
NOTICE: Manual control heaters  
maybeusedasaventedproduct.  
If so, you must always run heater  
with chimney flue damper open.  
If running heater with damper  
open, noncombustible material  
above fireplace opening is not  
needed. Go to Installing Damper  
Clamp Accessory for Vented  
Operation, page 10.  
See Figure 6 and Figures 7 and 8 on page 9  
for minimum clearances.  
Minimum Noncombustible  
Material Clearances  
IMPORTANT: If you cannot meet these  
minimum clearances, you must operate  
heater with chimney flue damper open. Go  
to Installing Damper Clamp Accessory for  
Vented Operation, page 10.  
If Not Using Mantel  
Note: If using a mantel, proceed to If Using  
Mantel. If not using a mantel, follow the  
information below.  
Noncombustible  
Material Distance (A)  
Requirements for  
Safe Installation  
You must have noncombustible material(s)  
above the fireplace opening. Noncombus-  
tible materials (such as slate, marble, tile,  
etc.) must be at least 1/2 inch thick. With  
sheet metal, you must have noncombustible  
materialbehindit.Noncombustiblematerial  
must extend at least 8" up (for all models). If  
noncombustible material is less than 12",  
youmustinstallthefireplacehoodaccessory  
(24" and 30" models only). See Figure 6 for  
minimum clearances.  
12" or more  
Noncombustible material okay.  
Between 8" and 12"  
24" or 30" Models: Install fireplace hood acces-  
sory (GA6050, GA6052, or GA6053 see Accesso-  
ries, page 27).  
18" Model: Noncombustible material okay.  
Less than 8"  
Noncombustible material must be extended to at  
least 8". See Between 8" and 12", above. If you  
cannot extend material, you must operate heater  
with flue damper open.  
IMPORTANT: If you cannot meet these  
minimum clearances, you must operate  
heater with chimney flue damper open. Go  
to Installing Damper Clamp Accessory for  
Vented Operation, page 10.  
Heat Resistant  
Material  
(A)  
Figure 6- Heat Resistant Material (Slate, Marble, Tile, etc.) Above Fireplace  
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OWNER’S MANUAL  
Mantel Shelf  
INSTALLATION  
10"  
Underside of  
Mantel Shelf  
Continued  
8"  
6"  
MANTEL CLEARANCES  
2 1/2"  
Inadditiontomeetingnoncombustiblemate-  
rial clearances, you must also meet required  
clearances between fireplace opening and  
mantel shelf. If you do not meet the clear-  
anceslistedinFigure7,youwillneedahood.  
All minimum  
distances are  
in inches  
Minimum Non-  
Combustible  
Material  
(A)  
Log Set  
24"/30" Models  
12"  
18"  
8"  
20"  
14"  
22"  
24"  
20"  
Determining Minimum Mantel  
Clearance  
8"  
163/4"  
18" Model  
Top of Fireplace  
Opening  
If you meet minimum clearance between  
mantel shelf and top of fireplace opening, a  
hood is not required (see Figure 7).  
Minimum Non-  
Combustible  
Material Height  
Distances to  
Underside of  
Mantel  
Determining Minimum Mantel  
Clearance When Using a Hood  
If minimum clearances in Figure 7 are not  
met, you must have a hood. When using a  
hood there are still certain minimum mantel  
clearancesrequired.Followminimumclear-  
ances shown in Figure 8 when using hood.  
Figure 7 - Minimum Mantel Clearances Without Using Hood  
Mantel Shelf  
12"  
Underside of  
Mantel Shelf  
NOTICE: If your installation does  
notmeettheminimumclearances  
shown, you must do one of the  
following:  
10"  
8"  
6"  
2 1/2"  
All minimum  
distances are  
in inches  
• operate the logs only with the  
Minimum Non-  
Combustible  
Material  
flue damper open  
• raise the mantel to an accept-  
able height  
Log Set  
8"  
Min.  
12"  
15"  
18"  
20"  
A
l
l
M
o
d
els
• remove the mantel  
Top of Fireplace  
Opening  
FLOOR CLEARANCES  
A. If installing appliance on the floor level,  
you must maintain the minimum distance  
of 14" to combustibles (see Figure 9).  
Hood  
Distances to  
Underside of  
Mantel  
(GA6050, GA6052,  
and GA6053)  
B. If combustible materials are less than  
14" to the fireplace, you must install  
appliance at least 5" above the combus-  
tible flooring (see Figure 10).  
Figure 8 - Minimum Mantel Clearances When Using Hood  
Combustible  
Material  
Hearth  
14"  
Min.  
Combustible  
Material  
5"  
Min.  
Noncombustible Material  
Figure 9- Minimum Fireplace Clearances  
If Installed at Floor Level  
Figure10-MinimumFireplaceClearances  
Above Combustible Flooring  
Continued  
104340  
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VENT-FREE NATURAL GAS LOG HEATER  
INSTALLATION  
Continued  
Damper  
INSTALLING DAMPER  
CLAMP ACCESSORY FOR  
VENTED OPERATION  
Clamp  
Damper  
Note: When used as a vented heater, appli-  
ance must be installed only in a solid-fuel  
burning fireplace with a working flue and  
constructed of noncombustible material.  
Damper  
Clamp  
Ifyourheaterisamanuallycontrolledmodel,  
you may use this heater as a vented product.  
There are three reasons for operating your  
heater in the vented mode.  
Damper  
Damper  
1. The fireplace does not meet the clear-  
ance to combustibles requirements for  
vent-free operation.  
2. State or local codes do not permit vent-  
free operation.  
3. You prefer vented operation.  
Ifreasons number 1 or 2 above apply toyou,  
you must permanently open chimney flue  
damper. You must install the damper clamp  
accessory (to order, see Accessories, page  
27). This will insure vented operation (see  
Figure 11). The damper clamp will keep  
damper open. Installation instructions are  
included with clamp accessory.  
Masonry Fireplace  
Manufactured Fireplace  
Figure 11 - Attaching Damper Clamp  
See chart below for minimum permanent  
flue opening you must provide. Attach  
damper clamp so the minimum permanent  
flue opening will be maintained at all times.  
Area of Various Standard  
Round Flues  
Diameter (ins.) Area (sq. ins.)  
5"  
6"  
7"  
8"  
20 sq. inches  
29 sq. inches  
39 sq. inches  
51 sq. inches  
Chimney  
Minimum Permanent  
Height (ft.) Flue Opening (sq. ins.)  
6' to 15'  
15' to 30'  
39 sq. inches  
29 sq. inches  
104340  
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OWNER’S MANUAL  
4. Mark screw locations through holes in  
mounting brackets (see Figure 13 or  
Installation Items Needed  
• hardware package (provided with heater)  
INSTALLATION  
Continued  
14). If installing in a brick-bottom fire-  
place, mark screw locations in mortar  
joint of bricks.  
• approved flexible gas hose (not provided)  
(if allowed by local codes)  
INSTALLING HEATER BASE  
ASSEMBLY  
• sealant resistant to propane (propane/LP)  
gas, not provided  
5. Remove heater base from fireplace.  
6. Drill holes at marked locations using  
3/16" drill bit.  
CAUTION: Do not remove the  
metal data plates attached to the  
heater base assembly. The data  
platescontainimportantwarranty  
information.  
• electric drill with 3/16" drill bit  
1. Apply pipe joint sealant lightly to male  
threads of the fitting to be threaded into  
gas regulator. Connect approved flex-  
ible gas hose to gas regulator of heater  
(see Figure 12).  
7. Attach base assembly to fireplace floor  
using two masonry screws (in hardware  
package) (see Figures 13 or 14).  
8. Connect to gas supply. See Connect-  
ing To Gas Supply, page 12.  
WARNING: You must secure  
this heater to fireplace floor. If  
not, heater will move when you  
adjust controls. Moving heater  
may cause a gas leak.  
IMPORTANT: Hold gas regulator with  
wrench when connecting flexible gas  
hose.  
Masonry  
Screw  
2. Locate masonry screws in hardware  
package.  
3. Position heater base assembly in fire-  
place.  
WARNING: If installing in a  
sunken fireplace, special care is  
needed. You must raise the fire-  
place floor to allow access to  
heater control panel. This will in-  
sure adequate air flow and guard  
against sooting. Raise fireplace  
floor with noncombustible mate-  
rial. Make sure material is secure.  
Flexible Gas Hose  
(if allowed by local  
codes)  
Heater Gas  
Regulator  
Mounting  
Bracket  
Fitting  
Figure 13 - Attaching Base Assembly to  
Fireplace Floor - Dual Burner Model  
CAUTION: Do not pick up  
heater base assembly by the  
burner. This could damage  
heater. Only handle base assem-  
bly by grates.  
Masonry  
Screw  
Figure 12 - Attaching Flexible Gas Hose  
to Heater Gas Regulator  
IMPORTANT: Make sure the heater burn-  
ersarelevel. Ifheaterisnotlevel, heaterwill  
not work properly. For thermostat models,  
avoid damage to thermostat bulb. Avoid  
nicksorsharpbendsinthermostatbulbwire.  
Keep thermostat bulb in mounting bracket.  
Mounting  
Bracket  
Figure 14 - Attaching Base Assembly to  
Fireplace Floor - Single Burner Model  
Continued  
104340  
11  
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VENT-FREE NATURAL GAS LOG HEATER  
Installation must include a manual shutoff Installsedimenttrapinsupplylineasshown  
valve, union, and plugged 1/8" NPT tap. in Figure 15. Locate sediment trap where it  
Locate NPT tap within reach for test gauge is within reach for cleaning. Locate sedi-  
INSTALLATION  
Continued  
hook up. NPT tap must be upstream from ment trap where trapped matter is not likely  
CONNECTING TO GAS  
SUPPLY  
heater (see Figure 15).  
to freeze. A sediment trap traps moisture  
and contaminants. This keeps them from  
going into heater controls. If sediment trap  
is not installed or is installed wrong, heater  
may not run properly.  
Apply pipe joint sealant lightly to male  
threads. This will prevent excess sealant  
from going into pipe. Excess sealant in pipe  
could result in clogged heater valves.  
NOTICE: A qualified service per-  
son must connect heater to gas  
supply. Follow all local codes.  
CAUTION: Avoid damage to  
regulator.Holdgasregulatorwith  
wrenchwhenconnectingittogas  
piping and/or fittings.  
CAUTION:Usepipejointseal-  
ant that is resistant to liquid pe-  
troleum (LP) gas.  
Installation Items Needed  
Beforeinstallingheater,makesureyouhave  
the items listed below.  
• piping (check local codes)  
• sealant (resistant to propane/LP gas)  
• manual shutoff valve *  
• test gauge connection *  
• sediment trap  
A.G.A. Design-Certified  
Manual Shutoff Valve  
With 1/8" NPT Tap*  
From  
Approved Flexible  
Gas Hose (if allowed  
by local codes)  
Gas Meter  
(5" W.C.** to  
10.5" W.C.  
Pressure)  
• tee joint  
• pipe wrench  
* AnA.G.A.design-certifiedmanualshutoff  
valve with 1/8" NPT tap is an acceptable  
alternative to test gauge connection. Pur-  
chase the optional A.G.A. design-certified  
manual shutoff valve from your dealer. See  
Accessories, page 27.  
Gas  
Regulator  
Tee Joint  
WARNING: Never connect  
heater to private (non-utility) gas  
wells. This gas is commonly  
known as wellhead gas.  
Pipe  
Nipple  
3" Minimum  
Cap  
Sediment Trap  
CAUTION: Use only new,  
black iron or steel pipe. Inter-  
nally-tinned copper tubing may  
be used in certain areas. Check  
yourlocalcodes. Usepipeof1/2"  
diameter or greater to allow  
proper gas volume to heater. If  
pipe is too small, undue loss of  
pressure will occur.  
Figure 15 - Gas Connection  
* Purchase the optional A.G.A. design-certified manual shutoff valve from your dealer. See  
Accessories, page 27.  
** Minimum inlet pressure for purpose of input adjustment.  
104340  
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OWNER’S MANUAL  
TestPressuresEqualToorLessThan  
1/2 PSIG  
Pressure Testing Heater Gas  
Connections  
1. Open manual shutoff valve (see Figure  
16).  
INSTALLATION  
Continued  
1. Close manual shutoff valve (see Fig-  
ure 16).  
CHECKING GAS  
CONNECTIONS  
2. Pressurize supply piping system by ei-  
ther using compressed air or opening  
main gas valve located on or near gas  
meter.  
2. Open main gas valve located on or near  
gas meter.  
WARNING: Test all gas pip-  
ing and connections for leaks  
after installing or servicing. Cor-  
rect all leaks at once.  
3. Make sure control knob of heater is in  
the OFF position.  
3. Check all joints from gas meter to  
manual shutoff valve (see Figure 17).  
Apply mixture of liquid soap and wa-  
ter to gas joints. Bubbles forming show  
a leak.  
4. Check all joints from manual shutoff  
valve to control valve (see Figure 17).  
Apply mixture of liquid soap and wa-  
ter to gas joints. Bubbles forming show  
a leak.  
WARNING:Neveruseanopen  
flame to check for a leak. Apply a  
mixture of liquid soap and water  
to all joints. Bubbles forming  
show a leak. Correct all leaks at  
once.  
4. Correct all leaks at once.  
5. Correct all leaks at once.  
6. Light heater (see Operating Heater,  
pages 17 and 18 [manually-controlled  
models] or pages 18 and 19 [thermo-  
statically-controlled models]). Check  
all other internal joints for leaks.  
Manual  
Open  
Shutoff Valve  
Pressure Testing Gas Supply  
Piping system  
7. Turn off heater (see To Turn Off Gas to  
Appliance, page 18 [manually-con-  
trolled models] or page 19 [thermostati-  
cally-controlled models]).  
TestPressuresInExcessOf1/2PSIG  
Closed  
1. Disconnect heater and its individual  
manual shutoff valve from gas supply  
piping system. Pressures in excess of  
1/2 psig will damage heater regulator.  
Figure 16 - Manual Shutoff Valve  
Manual  
Shutoff  
Valve  
Thermostat Gas Valve or  
Control Valve Location  
2. Cap off open end of gas pipe where  
manual shutoff valve was connected.  
3. Pressurize supply piping system by ei-  
ther using compressed air or opening  
main gas valve located on or near gas  
meter.  
4. Check all joints of gas supply piping  
system. Apply mixture of liquid soap  
and water to gas joints. Bubbles form-  
ing show a leak.  
Gas Meter  
5. Correct all leaks at once.  
6. Reconnect heater and manual shutoff  
valve to gas supply. Check reconnected  
fittings for leaks.  
Figure 17 - Checking Gas Joints  
Continued  
104340  
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VENT-FREE NATURAL GAS LOG HEATER  
Front Log (#3)  
Back Log (#1)  
INSTALLATION  
Continued  
Peg  
INSTALLING LOGS  
Hole in  
Grate Base  
CAUTION: After installation  
andperiodicallythereafter,check  
to ensure that no flame comes in  
contact with any log. With the  
heater set to high, check to see if  
3
flames contact any log. If so, re-  
position logs according to the  
Post  
loginstallationinstructionsinthis  
manual. Flames contacting logs  
will create soot.  
Recess  
Post  
Burner  
Dual Burner Yellow Flame Models  
Figure 20 - Installing Front Log (#3)  
Figure 18 - Installing Back Log (#1)  
WARNING: Failure to position  
thepartsinaccordancewiththese  
diagrams or failure to use only  
parts specifically approved with  
this heater may result in property  
damage or personal injury.  
Middle Log (#2)  
Notches  
Crossover Log  
(#1)  
Cutout  
Tab  
Each log is marked with a number. These  
numbers will help you identify the log when  
installing. It is very important to install these  
logs exactly as instructed. Do not modify  
logs. Only use logs supplied with heater.  
1. Locate pegs on the bottom of back log  
(#1). Slide these pegs into the holes in  
the grate base behind the burner (see  
Figure 18).  
Rectangular  
Knobs  
Burner  
2. Place the base of the middle log (#2) in  
the U-shaped slots of the grate base in  
front of the back log. The cutout on the  
right of the middle log should fit over the  
burner (see Figure 19). Make sure the  
front of the middle log is resting on the  
tabs of the grate base and the cutout area  
is centered over the burner “U” bend.  
“U” Bend  
U-Shaped  
Slot  
Figure 21 - Installing Crossover Log (#4)  
Figure 19 - Installing Middle Log (#2)  
3. Locate the recesses on the back of the  
front log (#3). Fit these recesses be-  
tween the posts of the grate base (see  
Figure 20).  
4. Locate the notches in the bottom of the  
crossover log (#4). Place the crossover  
log on top of the middle log and front  
log. Make sure the notches of the cross-  
over log lines up with rectangular knobs  
on top of the middle and front logs (see  
Figure 21).  
5. Place lava rock around base of heater.  
Do not put lava rock on logs on burner.  
104340  
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OWNER’S MANUAL  
4. Locate the notches in the bottom of the  
Front Log (#4)  
INSTALLATION  
front log (#4). Place the front log on  
the grate fingers. Make sure the notches  
of the front log line up with the grate  
fingers. See Figure 25.  
Continued  
Notches  
Dual Burner Premium Aged  
Split Oak Models  
5. With knot to right side, place smaller  
log piece (#5) over the pin on the left  
side of the middle log. The smaller log  
will rest on front log against the "knot"  
on the left. See Figure 26.  
WARNING: Failure to position  
thepartsinaccordancewiththese  
diagrams or failure to use only  
parts specifically approved with  
this heater may result in property  
damage or personal injury.  
6. Place lava rock around base of heater.  
Do not put lava rock on logs on burner.  
Each log is marked with a number. These  
numberswillhelpyouidentifythelogwhen  
installing. It is very important to install  
these logs exactly as instructed. Do not  
modify logs. Only use logs supplied with  
heater.  
Back Log (#2)  
Hole in  
Grate Base  
Peg  
Grate Fingers  
1. Place the base of the middle log (#1) in  
the U-shaped slots of the grate base.  
The cutout on the right of the middle  
log should fit over the burner (see Fig-  
ure 22). Make sure the front of the  
middle log is resting on the tabs of the  
grate base and the cutout area is cen-  
tered over the burner “U” bend.  
Figure 25 - Installing Front Log (#4)  
Log Piece (#5)  
2. Locate pegs on the bottom of back log  
(#2). Slide these pegs into the holes in  
the grate base behind the burner (see  
Figure 23).  
Burner  
3. Placecrossoverlog(#3)ontothepin(right)  
on middle log (#1) and into the recess of  
the back log (#2). See Figure 24.  
Figure 23 - Installing Back Log (#2)  
Crossover Log  
(#3)  
Middle Log (#1)  
Recess  
Peg  
Tab  
Figure 26 - Installing Log Piece (#5)  
Burner  
“U” Bend  
U-Shaped  
Slot  
Figure 22 - Installing Middle Log (#1)  
Figure 24 - Installing Crossover Log (#3)  
Continued  
104340  
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VENT-FREE NATURAL GAS LOG HEATER  
Back Log (#1)  
INSTALLATION  
Crossover  
Log (#3)  
Continued  
Single Burner Mountain Oak  
Models  
Hole in  
Grate  
WARNING: Failure to position  
Notch  
thepartsinaccordancewiththese  
diagrams or failure to use only  
parts specifically approved with  
this heater may result in property  
damage or personal injury.  
Post  
Each log is marked with a number. These  
numberswillhelpyouidentifythelogwhen  
installing. It is very important to install  
Notch  
these logs exactly as instructed. Do not  
modify logs. Only use logs supplied with  
heater.  
Figure 27 - Installing Back Log  
Figure 29 - Installing Crossover Log  
1. Place the back log (#1) onto the back  
of the burner. Make sure the log sits  
down into the hole in the grate and leans  
forward onto the two posts in front of  
the log (see Figure 27).  
Front Log  
(#2)  
Recess  
2. Locate the notches on the underside of  
the front log (#2). Also notice the re-  
cesses on the back of log #2. Slide the  
notches over the tabs on the grate base  
and the front posts into the recesses on  
the back (see Figure 28).  
Notch  
3. Place the crossover log (#3) on top of  
the back log and front log. Make sure  
the crossover log is seated into the  
notches on top of the back and front  
logs (see Figure 29).  
4. Add lava rock around base of heater.  
Do not put lava rock on logs or burner.  
Tabs on  
Grate Base  
Post  
Figure 28 - Installing Front Log  
104340  
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OWNER’S MANUAL  
4. 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 in-  
formation above. If you don’t smell  
gas, go to the next step.  
OPERATING  
LIGHTING  
INSTRUCTIONS  
HEATER  
Manually-Controlled Models  
WARNING:  
FOR YOUR SAFETY  
READ BEFORE  
LIGHTING  
• If fireplace has glass doors,  
never operate this heater with  
glass doors closed. If you op-  
erateheaterwithdoorsclosed,  
heat buildup inside fireplace  
will cause glass to burst. Also  
if fireplace opening has vents  
at the bottom, you must open  
the vents before operating  
heater.  
5. Slightly depress and turn control knob  
counterclockwise to the PI-  
C-clockwise  
LOT position. Press in control knob  
for five (5) seconds (see Figure 30).  
WARNING: If you do not fol-  
low these instructions exactly, a  
fireorexplosionmayresultcaus-  
ing property damage, personal  
injury or loss of life.  
Note: You may be running this  
heater for the first time after hook-  
ing up to gas supply. If so, the con-  
trol knob may need to be pressed in  
for 30 seconds. This will allow air to  
bleed from the gas system.  
• You must operate this heater  
withafireplacescreeninplace.  
Make sure fireplace screen is  
closed before running heater.  
A. This appliance has a pilot which must  
be lighted by hand. When lighting the  
pilot, follow these instructions exactly.  
6. With control knob pressed in, press  
and release ignitor button. This will  
light pilot. The pilot is attached to the  
burner. If needed, keep pressing ig-  
nitor button until pilot lights.  
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.  
NOTICE: During initial operation  
of new heater, burning logs will  
give off a paper-burning smell.  
Orange flame will also be present.  
Open damper or window to vent  
smell.Thiswillonlylastafewhours.  
Note: If pilot does not stay lit, con-  
tact a qualified service person or gas  
supplier for repairs. Until repairs are  
made, light pilot with match. To light  
pilot with match, see Manual Light-  
ing Procedure, page 18.  
WHAT TO DO IF YOU SMELL  
GAS  
• Do not try to light any appliance.  
• Do not touch any electric 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.  
• If you cannot reach your gas sup-  
plier, call the fire department.  
Note: Home owners generally prefer to  
operate their heater with the chimney  
damper closed. This will put all the heat  
into the room. However, there may be  
times you will desire the full flames of the  
Hi heat setting but will find the heat  
output excessive. You can open the chim-  
ney damper (if you have one) fully or  
partially to release some of the heat.  
7. Keep control knob pressed in for 30  
seconds after lighting pilot. After 30  
seconds, release control knob.  
Note: If pilot goes out, repeat steps  
3 through 7. If control knob does not  
pop out when released, contact a  
qualified service person or gas sup-  
plier for repairs.  
C. Use only your hand to push in or turn  
the gas control knob. Never use tools.  
If the knob will not push in or turn  
by hand, don’t try to repair it, call a  
qualified service technician or gas  
supplier. Force or attempted repair  
may result in a fire or explosion.  
8. Slightly depress and turn control  
C-clockwise  
knob counterclockwise  
to  
WARNING: Damper handle  
will be hot if heater has been  
running.  
desired heating level. The burner  
should light. Set control knob to any  
heat level between HI and LO.  
1. STOP! Read the safety information,  
column 1.  
WARNING: Do not operate  
heater between PILOT and HIGH  
positions.  
D. Do not use this appliance if any part  
has been under water. Immediately  
call a qualified service technician to  
inspect the appliance and to replace  
any part of the control system and  
any gas control which has been un-  
der water.  
2. Make sure manual shutoff valve is  
fully open.  
3. Press in and turn control knob clock-  
Ignitor Electrode  
wise  
to the OFF position.  
Clockwise  
Thermopile  
Thermocouple  
HI  
PILOT  
OFF  
LO  
Pilot  
Burner  
Ignitor Button  
Control Knob  
Figure 30 - Control Knob and Ignitor  
Button Location  
Figure 31 - Pilot  
Continued  
104340  
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VENT-FREE NATURAL GAS LOG HEATER  
Thermostatically-Controlled  
Models  
OPERATING  
LIGHTING  
INSTRUCTIONS  
HEATER  
Continued  
FOR YOUR SAFETY  
READ BEFORE  
LIGHTING  
WARNING  
VARIABLE CONTROL  
• If fireplace has glass doors,  
never operate this heater with  
glass doors closed. If you op-  
erateheaterwithdoorsclosed,  
heat buildup inside fireplace  
will cause glass to burst. Also  
if fireplace opening has vents  
at the bottom, you must open  
the vents before operating  
heater.  
OPERATION  
The variable control valve can be set to  
anyheatsettingandflameheightdesired,  
by simply turning the control knob until  
that setting is attained. Even the lowest  
setting provides realistic, dancing yellow  
flames.Selectinghighersettingsproduces  
greater heat output. This results in in-  
creased heating comfort.  
WARNING: If you do not fol-  
low these instructions exactly, a  
fireorexplosionmayresultcaus-  
ing property damage, personal  
injury or loss of life.  
A. This appliance has a pilot which must  
be lighted by hand. When lighting the  
pilot, follow these instructions exactly.  
• You must operate this heater  
withafireplacescreeninplace.  
Make sure fireplace screen is  
closed before running heater.  
CAUTION:Donottrytoadjust  
heating levels by using the  
manual shutoff valve.  
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.  
NOTICE: During initial operation  
of new heater, burning logs will  
give off a paper-burning smell.  
Orangeflamewillalsobepresent.  
Open damper or window to vent  
smell. This will only last a few  
hours.  
TO TURN OFF GAS  
TO APPLIANCE  
WHAT TO DO IF YOU SMELL  
GAS  
• Do not try to light any appliance.  
• Do not touch any electric 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.  
• If you cannot reach your gas sup-  
plier, call the fire department.  
Shutting Off Heater  
1. Press in and turn control knob clock-  
wise  
to the HIGH position.  
Clockwise  
Note: Home owners generally prefer to  
operate their heater with the chimney  
damper closed. This will put all the heat  
into the room. However, there may be  
times you will desire the full flames of the  
Hi heat setting but will find the heat  
output excessive. You can open the chim-  
ney damper (if you have one) fully or  
partially to release some of the heat.  
2. Turn control knob clockwise  
to the pilot position.  
Clockwise  
3. Press in control knob and turn clock-  
wise to the OFF position.  
Clockwise  
C. Use only your hand to push in or turn  
the gas control knob. Never use tools.  
If the knob will not push in or turn  
by hand, don’t try to repair it, call a  
qualified service technician or gas  
supplier. Force or attempted repair  
may result in a fire or explosion.  
Shutting Off Burners Only (pilot  
stays lit)  
1. Turn control knob clockwise  
Clockwise  
to the HIGH position.  
WARNING: Damper handle  
will be hot if heater has been  
running.  
2. Press in and turn control knob clock-  
wise  
to the pilot position.  
Clockwise  
D. Do not use this appliance if any part  
has been under water. Immediately  
call a qualified service technician to 1. STOP! Read the safety information,  
MANUAL LIGHTING  
PROCEDURE  
inspect the appliance and to replace  
any part of the control system and  
any gas control which has been un-  
der water.  
column 2.  
2. Make sure manual shutoff valve is  
fully open.  
1. Follow steps 1 through 5 under Light-  
ing Instructions, page 17.  
Clockwise  
3. Turn control knob clockwise  
2. Depress control knob and light pilot  
with match.  
to the OFF position.  
4. 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 in-  
formation above. If you don’t smell  
gas, go to the next step.  
3. Keep control knob pressed in for 30  
seconds after lighting pilot. After 30  
seconds, release control knob. Now  
follow step 8 on page 17.  
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OWNER’S MANUAL  
OPERATING  
HEATER  
MANUAL LIGHTING  
PROCEDURE  
1. Follow steps 1 through 5 under Light-  
ing Instructions, pages 18 and 19.  
Continued  
5. Turn control knob counterclockwise  
2. Depress control knob and light pilot  
C-clockwise  
to the PILOT position.  
Control Knob  
Ignitor Button  
with match.  
Press in control knob for five (5) sec-  
onds (see Figure 32).  
Figure 32 - Control Knob and Ignitor But-  
ton Location  
3. Keep control knob pressed in for 30  
seconds after lighting pilot. After 30  
seconds, release control knob. Now  
follow step 8.  
Note: You may be running this  
heater for the first time after hook-  
ing up to gas supply. If so, the con-  
trol knob may need to be pressed in  
for 30 seconds or less. This will allow  
air to bleed from the gas system.  
• If control knob does not pop out  
when released, contact a qualified  
service person or gas supplier for  
repairs.  
Ignitor Electrode  
Thermopile  
Thermocouple  
INSPECTING  
BURNERS  
Check pilot flame pattern and burner flame  
patterns often.  
PILOT FLAME PATTERN  
Pilot Burner  
6. With control knob pressed in, press  
and release ignitor button. This will  
light pilot. The pilot is attached to the  
front burner. If needed, keep press-  
ing ignitor button until pilot lights.  
Figure34showsacorrectpilotflamepattern.  
Figure 35 shows an incorrect pilot flame  
pattern.Theincorrectpilotflameisnottouch-  
ing the thermocouple. This will cause the  
thermocouple to cool. When the thermo-  
couple cools, the heater will shut down.  
Figure 33 - Pilot  
TO TURN OFF GAS  
TO APPLIANCE  
Note: If pilot does not stay lit, con-  
tact a qualified service person or gas  
supplier for repairs. Until repairs are  
made, light pilot with match. To light  
pilot with match, see Manual Light-  
ing Procedure.  
Shutting Off Heater  
1. Turn control knob clockwise  
If pilot flame pattern is incorrect, as shown  
in Figure 35  
Clockwise  
to the OFF position.  
• turn heater off (see To Turn Off Gas to  
Appliance, page 18 [manually-controlled  
models] or page 19 [thermostat-con-  
trolled models])  
Shutting Off Burners Only (pilot  
stays lit)  
7. Keep control knob pressed in for 30  
seconds after lighting pilot. After 30  
seconds, release control knob.  
1. Turn control knob clockwise  
Clockwise  
to the PILOT position.  
• see Troubleshooting, pages 21 through 23  
Thermocouple  
Note: If pilot goes out, repeat steps  
3 through 7. This heater has a safety  
interlock system. Wait one (1) minute  
for system to reset before lighting  
pilot again.  
THERMOSTAT  
CONTROL  
OPERATION  
8. Turn control knob counterclockwise  
Thethermostatcontrolknobcanbesetto  
anycomfortlevelbetweenHiandLo.The  
thermostat will gradually modulate the  
heatoutputandflameheightfromhigher  
to lower settings, or pilot, in order to  
maintain the comfort level you select.  
The ideal comfort setting will vary by  
householddependingupontheamountof  
space to be heated, the output of the  
central heating system, etc.  
to desired heating level. The  
C-clockwise  
burners should light. Set control  
knob to any heat level between HI  
and LO.  
Pilot Burner  
Figure 34 - Correct Pilot Flame Pattern  
Thermocouple  
CAUTION:Donottrytoadjust  
heating levels by using the  
manual shutoff valve.  
Note: Selecting the Hi setting with the  
control knob will cause the burners to  
remainfullyon,withoutmodulatingdown  
in most cases.  
Pilot Burner  
Figure 35 - Incorrect Pilot Flame Pattern  
104340  
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VENT-FREE NATURAL GAS LOG HEATER  
Burner  
Tube  
Wealsorecommendthatyoukeeptheburner  
tubeandpilotassemblycleanandfreeofdust  
and dirt. To clean these parts we recommend  
using compressed air no greater than 30 PSI.  
Yourlocalcomputerstore,hardwarestore,or  
home center may carry compressed air in a  
can. You can use a vacuum cleaner in the  
blow position. If using compressed air in a  
can, please follow the directions on the can.  
If you don't follow directions on the can, you  
could damage the pilot assembly.  
INSPECTING  
Ports/Slots  
BURNERS  
Continued  
BURNER PRIMARY AIR  
HOLES  
Air is drawn into the burner through the  
holes in the fitting at the entrance to the  
burner. These holes may become blocked  
with dust or lint. Periodically inspect these  
holes for any blockage and clean as neces-  
sary. Blocked air holes will create soot.  
Pilot Assembly  
Pilot Air  
Inlet Hole  
1. Shut off the unit, including the pilot.  
Allow the unit to cool for at least thirty  
minutes.  
MAIN BURNER  
2. Inspect burner, pilot, and primary air  
inlet holes on injector holder for dust  
and dirt (see Figure 36).  
Periodically inspect all burner flame holes  
with the heater running. All slotted burner  
flame holes should be open with yellow  
flame present. All round burner flame holes  
should be open with a small blue flame  
present. Some burner flame holes may be-  
comeblockedbydebrisorrust,withnoflame  
present. If so, turn off heater and let cool,  
Either remove blockage or replace burner.  
Blocked burner flame holes will create soot.  
3. Blow air through the ports/slots and  
holes in the burner.  
4. Check the injector holder located at the  
end of the burner tube again. Remove  
any large particles of dust, dirt, lint, or  
pet hairs with a soft cloth or vacuum  
cleaner nozzle.  
Figure 37 - Pilot Inlet Air Hole  
LOGS  
• If you remove logs for cleaning, refer to  
Installing Logs, pages 14 through 16, to  
properly replace logs.  
5. Blow air into the primary air holes on  
the injector holder.  
CLEANING AND  
MAINTENANCE  
6. In case any large clumps of dust have  
now been pushed into the burner repeat  
steps 3 and 4.  
• Replace log(s) if broken or chipped  
(dime-sized or larger).  
WARNING: Turn off heater  
and let cool before cleaning.  
MAIN BURNER  
Clean the pilot assembly also. A yellow tip  
on the pilot flame indicates dust and dirt in  
the pilot assembly. There is a small pilot air  
inlet hole about two inches from where the  
pilot flame comes out of the pilot assembly  
(see Figure 37). With the unit off, lightly  
blow air through the air inlet hole. You may  
blowthroughadrinkingstrawifcompressed  
air is not available.  
Periodically inspect all burner flame holes  
with the heater running. All slotted burner  
flame holes should be open with yellow  
flame present. All round burner flame holes  
should be open with a small blue flame  
present. Some burner flame holes may be-  
comeblockedbydebrisorrust,withnoflame  
present. If so, turn off heater and let cool,  
Either remove blockage or replace burner.  
Blocked burner flame holes will create soot.  
CAUTION: You must keep  
control areas, burner, and circu-  
lating air passageways of heater  
clean. Inspect these areas of  
heater before each use. Have  
heaterinspectedyearlybyaquali-  
fied service person. Heater may  
needmorefrequentcleaningdue  
to excessive lint from carpeting,  
bedding material, etc.  
Injector Holder  
(May Be Brass or  
Aluminum De-  
pending on Model)  
Burner  
Tube  
CLEANING BURNER  
INJECTOR HOLDER AND  
PILOT AIR INLET HOLE  
The primary air inlet holes allow the proper  
amount of air to mix with the gas. This  
provides a clean burning flame. Keep these  
holesclearofdust, dirt, andlint. Cleanthese  
air inlet holes prior to each heating season.  
Blocked air holes will create soot. We rec-  
ommend that you clean the unit every 2,500  
hours of operation or every three months.  
Primary Air Inlet  
Holes (Shape of  
Holes May Vary  
by Model)  
Figure 36 - Injector Holder On Outlet  
Burner Tube  
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OWNER’S MANUAL  
TROUBLESHOOTING  
Note: For additional help, visit DESA  
International’s Technical Service web  
site at www.desatech.com.  
WARNING: Turn off and un-  
CAUTION: Never use a wire,  
needle, or similar object to clean  
ODS/pilot.ThiscandamageODS/  
pilot unit.  
plug heater and let cool before  
servicing. Only a qualified ser-  
vice person should service and  
repair heater.  
Note:Alltroubleshootingitemsarelistedin  
order of operation.  
OBSERVED PROBLEM  
POSSIBLE CAUSE  
REMEDY  
When ignitor button is pressed, there is no  
spark at ODS/pilot  
1. Ignitor electrode not connected to igni- 1. Reconnect ignitor cable  
tor cable  
2. Ignitor cable pinched or wet  
2. Free ignitor cable if pinched by any  
metal or tubing. Keep ignitor cable dry  
3. Tighten nut holding piezo ignitor to base  
panel of log set. Nut is located behind  
base panel.  
3. Piezo ignitor nut is loose  
4. Broken ignitor cable  
4. Replace ignitor cable  
5. Bad piezo ignitor  
5. Replace piezo ignitor  
6. Ignitor electrode broken  
7. Ignitor electrode positioned wrong  
6. Replace piezo ignitor  
7. Replace piezo ignitor  
When ignitor button is pressed, there is  
spark at ODS/pilot but no ignition  
1. Gas supply turned off or manual shutoff 1. Turn on gas supply or open manual  
valve closed  
shutoff valve  
2. Control knob not in PILOT position  
2. Turn control knob to PILOT position  
3. Control knob not pressed in while in PI- 3. Press in control knob while in PILOT  
LOT position  
position  
4. Air in gas lines when installed  
4. Continue holding down control knob.  
Repeat igniting operation until air is re-  
moved  
5. ODS/pilot is clogged  
5. Clean ODS/pilot (see Cleaning and  
Maintenance, page 20) or replace ODS/  
pilot assembly  
6. Gas regulator setting is not correct  
1. Control knob not fully pressed in  
6. Replace gas regulator  
ODS/pilot lights but flame goes out when  
control knob is released  
1. Press in control knob fully  
2. Control knob not pressed in long enough 2. After ODS/pilot lights, keep control  
knob pressed in 30 seconds  
3. Manual shutoff valve not fully open  
3. Fully open manual shut-off valve  
4. Pilot flame not touching thermocouple, 4. A) Contact local natural gas company  
which allows thermocouple to cool,  
causing pilot flame to go out. This prob-  
lem could be caused by one or both of  
the following:  
B) Clean ODS/pilot (see Cleaning and  
Maintenance, page 20) or replace ODS/  
pilot assembly  
A) Low gas pressure  
B) Dirty or partially clogged ODS/pilot  
5. Thermocouple connection loose at con- 5. Hand tighten until snug, then tighten 1/  
trol valve  
4 turn more  
6. Thermocouple damaged  
6. Replace thermocouple  
7. Control valve damaged  
7. Replace control valve  
Continued  
104340  
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VENT-FREE NATURAL GAS LOG HEATER  
TROUBLESHOOTING  
Continued  
OBSERVED PROBLEM  
POSSIBLE CAUSE  
REMEDY  
Burner does light after ODS/pilot is lit  
1. Burner orifice clogged  
1. Clean burner (see Cleaning and Main-  
tenance, page 20) or replace burner ori-  
fice  
2. Inlet gas pressure is too low  
3. Burner orifice diameter is too small  
2. Contact local natural gas company  
3. Replace burner orifice  
Delayed ignition burner  
1. Manifold pressure is too low  
2. Burner orifice clogged  
1. Contact local natural gas company  
2. Clean burner (see Cleaning and Main-  
tenance, page 20) or replace burner ori-  
fice  
Burner backfiring during combustion  
1. Burner orifice is clogged or damaged  
1. Clean burner (see Cleaning and Main-  
tenance, page 20) or replace burner ori-  
fice  
2. Damaged burner  
3. Gas regulator defective  
2. Replace damaged burner  
3. Replace gas regulator  
Slightsmokeorodorduringinitialoperation 1. Not enough air  
1. Check burner for dirt and debris. If  
found, clean burner (see Cleaning and  
Maintenance, page 20)  
2. Gas regulator defective  
2. Replace gas regulator  
3. Residues from manufacturing processes 3. Problem will stop after a few hours of  
and logs curing  
operation  
Moisture/condensationnoticedonwindows 1. Not enough combustion/ventilation air  
1. Refer to Air for Combustion and Venti-  
lation requirements (page 4)  
Heater produces a whistling noise when 1. Turning control knob to HI position 1. Turn control knob to LO position and  
burner is lit  
when burner is cold  
let warm up for a minute  
2. Air in gas line  
2. Operate burner until air is removed from  
line. Have gas line checked by local  
natural gas company  
3. Air passageways on heater blocked  
3. Observe minimum installation clear-  
ances (see pages 7 through 9)  
4. Dirty or partially clogged burner orifice 4. Clean burner (see Cleaning and Main-  
tenance, page 20) or replace burner ori-  
fice  
Whitepowderresidueformingwithinburner 1. When heated, vapors from furniture pol- 1. Turn heater off when using furniture  
box or on adjacent walls or furniture  
ish, wax, carpet cleaners, etc. turn into  
white powder residue  
polish, wax, carpet cleaners, or similar  
products  
104340  
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OWNER’S MANUAL  
TROUBLESHOOTING  
Continued  
WARNING: If you smell gas  
• Shut off gas supply.  
• 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.  
• If you cannot reach your gas supplier, call the fire department.  
IMPORTANT:Operatingheaterwhereimpuritiesinairexistmaycreateodors.Cleaning  
supplies,paint,paintremover,cigarettesmoke,cementsandglues,newcarpetortextiles,  
etc., create fumes. These fumes may mix with combustion air and create odors. These  
odors will disappear over time.  
POSSIBLE CAUSE  
OBSERVED PROBLEM  
REMEDY  
1. Metal expanding while heating or con-  
tracting while cooling  
Heater produces a clicking/ticking noise  
just after burner is lit or shut off  
1. This is common with most heaters. If  
noise is excessive, contact qualified ser-  
vice person  
1. Heater burning vapors from paint, hair  
spray, glues, cleaners, chemicals, new  
carpet, etc. (See IMPORTANT state-  
ment above)  
Heater produces unwanted odors  
1. Open window and ventilate room. Stop  
using odor causing products while heater  
is running  
2. Gas leak. SeeWarning statement at  
top of page  
2. Locate and correct all leaks (see Check-  
ing Gas Connections, page 13)  
1. Not enough fresh air is available  
2. Low line pressure  
3. ODS/pilot is partially clogged  
Heater shuts off in use (ODS operates)  
1. Open window and/or door for ventilation  
2. Contact local natural gas company  
3. Clean ODS/pilot (see Cleaning and  
Maintenance, page 20)  
1. Gas leak. SeeWarning statement at  
top of page  
2. Control valve defective  
Gas odor even when control knob is in OFF  
position  
1. Locate and correct all leaks (see Check-  
ing Gas Connections, page 13)  
2. Replace control valve  
1. Foreign matter between control valve  
and burner  
Gas odor during combustion  
1. Take apart gas tubing and remove for-  
eign matter  
2. Gas leak. SeeWarning statement at  
top of page  
2. Locate and correct all leaks (see Check-  
ing Gas Connections, page 13)  
1. Thermostat sensing bulb needs to be re-  
positioned  
Logs set cycles to pilot, but room tempera-  
ture drops to a lower than ideal level before  
log set comes back on  
1. Reposition thermostat sensing bulb (see  
instructions for Optional Positioning of  
Thermostat Sensing Bulb, page 24  
104340  
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VENT-FREE NATURAL GAS LOG HEATER  
Thermostat  
Sensing Bulb  
4. The mounting clip must be a minimum  
of 3" from bottom of fireplace to pre-  
vent crimping of capillary. Once you  
have decided on a location, clean the  
area thoroughly. Remove the paper  
backing from the adhesive on back of  
mounting clip. Press the clip into the  
new location so that the thermostat  
sensing bulb will be positioned verti-  
cally with the capillary at the bottom  
(see Figure 44). Slide the thermostat  
sensing bulb into the clip.  
OPTIONAL  
POSITIONING OF  
THERMOSTAT  
Adhesive-  
backed  
Mounting Clip  
SENSING BULB  
For Masonry and Factory-  
built Metal Fireplace  
If your log set cycles to pilot, but the room  
temperature drops to a lower than ideal  
comfort level before the log set comes back  
on, you may want to reposition the thermo-  
stat sensing bulb.  
Figure 41 - Locating Thermostat Sensing  
Bulb on Masonry Fireplace  
IMPORTANT: Do not crimp capillary.  
Thermostat  
Sensing  
Bulb  
Gas Valve  
Assembly  
The thermostat sensing bulb is located near  
the gas valve assembly on the mounting  
bracket. This location allows the thermostat  
to keep the room temperature at an ideal  
comfort level for most fireplace applica-  
tions. For positioning the thermostat sens-  
ing bulb elsewhere, an adhesive-backed  
mounting clip is available.  
Adhesive-  
backed  
Mounting  
Clip  
Tools needed: 1/4" hex driver or socket  
Figure 42 - Locating Thermostat Sensing  
Bulb on Factory-built Metal Fireplace  
1. Remove logs. Locate the gas valve as-  
sembly and thermostat sensing bulb  
(see Figure 38).  
Thermostat  
Sensing Bulb  
Mounting  
Bracket  
Thermostat  
Sensing  
Bulb  
2. With 1/4" hex driver or socket, loosen  
the thermostat screw. Carefully slide  
the thermostat sensing bulb out of the  
retaining clamp (see Figure 40).  
Figure 38 - Location of Gas Valve Assem-  
bly and Thermostat Sensing Bulb  
Adhesive-  
backed  
Mounting  
Clip  
Note: Do not remove the screw. Make  
sure you tighten the screw after remov-  
ing the thermostat sensing bulb.  
IMPORTANT: Do not force or bend the  
thermostat sensing bulb or capillary.  
3. The thermostat sensing bulb may be  
located to the lower right front side of  
fireplace. Determine location of sens-  
ing bulb, but do not mount sensing bulb  
until step 5. If you have a masonry fire-  
place, see Figure 41 for location. If you  
have a factory-built metal fireplace, see  
Figure 42 for location. If your fireplace  
has glass doors, position sensing bulb  
directly behind door gap on right bot-  
tom side (see Figure 43).  
Glass Doors  
Figure 39 - Adhesive-backed Mounting  
Clip  
Figure43-InstallingThermostatSensing  
Bulb behind Glass Doors  
Thermostat Screw  
Capillary  
Thermostat  
Sensing Bulb  
Retaining  
Clamp  
Adhesive-  
backed  
Mounting  
Clip  
Capillary  
Thermostat  
Sensing Bulb  
Do Not Crimp  
Capillary  
Figure 44 - Positioning the Thermostat  
SensingBulbintheVertical Positionwith  
the Capillary at the Bottom  
Figure 40 - Removing Thermostat Sens-  
ing Bulb  
104340  
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OWNER’S MANUAL  
SERVICE HINTS  
When Gas Pressure Is Too Low  
• pilot will not stay lit  
TECHNICAL  
SERVICE  
REPLACEMENT  
PARTS  
You may have further questions about in- Note: Use only original replacement parts.  
• burners will have delayed ignition  
• heater will not produce specified heat  
stallation, operation, or troubleshooting.  
Thiswillprotectyourwarrantycoveragefor  
parts replaced under warranty.  
If so, contact DESA International’s Techni-  
calServiceDepartmentat1-800-DESALOG  
(1-800-337-2564).  
When Gas Quality Is Bad  
• pilot will not stay lit  
PARTS UNDER WARRANTY  
Contact authorized dealers of this product. If  
theycan’tsupplyoriginalreplacementpart(s),  
contact your nearest Parts Central (see page  
26) or call DESA International’s Technical  
Service Department at 1-800-DESA LOG  
(1-800-337-2564) for referral information.  
• burners will produce flames and soot  
• heater will backfire when lit  
You can also visit DESA International’s  
Technical Services web site at  
Youmayfeelyourgaspressureistoolowor  
gas quality is bad. If so, contact your local  
natural gas supplier.  
When calling DESA International, have  
ready  
SPECIFICATIONS  
• your name  
• your address  
DUAL BURNER YELLOW FLAME AND PREMIUM AGED SPLIT  
OAK MODELS  
• model number of your heater  
• how heater was malfunctioning  
• type of gas used (propane or natural gas)  
• purchase date  
18" Model  
24" Models  
30" Models  
Btu (Variable)  
16,000/30,000  
20,000/39,000  
20,000/39,0000  
Type Gas  
Only  
Natural Gas Only Natural Gas Only Natural Gas  
Usually, we will ask you to return the defec-  
tive part to the factory.  
Ignition  
Piezo  
Piezo  
Piezo  
PARTS NOT UNDER  
WARRANTY  
Manifold Pressure  
Inlet Gas  
3.5" W.C.  
3.5" W.C.  
3.5" W.C.  
Contact authorized dealers of this product.  
If they can’t supply original replacement  
part(s), contact your nearest Parts Central  
(see page 26) or call DESA International’s  
Parts Department at 1-800-972-7879 for  
referral information.  
Pressure (in. of water)  
Maximum  
10.5"  
5"  
10.5"  
5"  
10.5"  
5"  
Minimum*  
Shipping Weight  
36 lbs.  
38 lbs.  
40 lbs.  
When calling DESA International, have  
ready  
* For the purpose of input adjustment  
• model number of your heater  
• the replacement part number  
SINGLE BURNER MOUNTAIN OAK MODELS  
18" Model  
24" Model  
Btu (Variable)  
Type Gas  
16,000/27,000  
16,000/31,500  
Natural Gas Only Natural Gas Only  
Ignition  
Piezo  
Piezo  
Manifold Pressure  
3.5" W.C.  
3.5" W.C.  
Inlet Gas  
Pressure (in. of water)  
Maximum  
10.5"  
5"  
10.5"  
5"  
Minimum*  
Shipping Weight  
38 lbs.  
40 lbs.  
* For the purpose of input adjustment  
104340  
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VENT-FREE NATURAL GAS LOG HEATER  
PARTS CENTRAL  
These Parts Centrals are privately owned businesses. They have agreed to support our customer’s needs by providing original replacement  
parts and accessories.  
Baltimore Electric  
1348 Dixwell Avenue  
Hamden, CT 06514-0322  
1-800-397-7553  
203-248-7553  
Parts Department  
Washer Equipment Co.  
1715 Main Street  
Kansas City, MO 64108-2195  
KS, MO, AR  
Halco Enterprises  
208 Carter Drive, Unit 21  
West Chester, PA 19382-4500  
610-430-7717  
816-842-3911  
1-800-368-0803  
East Coast Energy Products  
707 Broadway  
W. Long Branch, NJ 07764-1542  
732-870-8809  
LA Porte’s Parts & Service  
2444 N. 5th Street  
Hartsville, SC 29550-7704  
803-332-0191  
Parts Department  
Portable Heater Parts  
342 N. County Rd. 400 East  
Valparaiso, IN 46383-9704  
All States  
219-462-7441  
1-800-362-6951  
1-800-755-8809  
Tarantin Tank Co.  
P.O. Box 6129  
Freehold, NJ 07728-6129  
908-780-9340  
1-800-922-0724  
Cans Unlimited, Inc.  
P.O. Box 645  
Taylor, SC 29687-0013  
All States  
803-879-3009  
1-800-845-5301  
FBD  
1349 Adams Street  
Bowling Green, KY 42103  
502-846-1199  
1-800-654-8534  
Fax: 1-800-846-0090  
Heater & Fireplace Store  
1922 N Route 9  
Cape May Court, NJ 08210-1110  
609-624-0678  
Four Flags Power Products  
1115 Stateline Road  
Niles, MI 49120-4728  
616-684-2697  
1-800-268-4983  
Parts Only  
Parts Department  
Dayton Hardware  
P.O. Box 275  
North Dayton Station  
Dayton, OH 45404-0275  
All States  
Master Parts Dist.  
1251 Mound Ave NW  
Grand Rapids, MI 49504-2672  
616-791-8270  
937-258-3721  
OH 1-800-762-3426  
1-800-446-1446  
104340  
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OWNER’S MANUAL  
DAMPER CLAMP - GA6080  
(Not Shown)  
ACCESSORIES  
Purchase these fireplace accessories from  
your local dealer. If they can not supply  
theseaccessories,callDESAInternational’s  
Sales Department at 1-800-972-7879 for  
referral information. You can also write to  
the address listed on the back page of this  
manual.  
For variably-controlled models. Perma-  
nentlyopenschimneyfluedamperforvented  
operation (see Installing Damper Clamp  
Accessory for Vented Operation, page 10).  
FIREPLACE HOOD  
Black - GA6050  
Brass - GA6052  
LAVA ROCK - GA6060  
(Not Shown)  
For all models. Order when additional rock  
is desired. (3 lb. bag)  
Antique Brass - GA6053  
For all models. Helps deflect heat away  
from mantel or wall above fireplace.  
MANUAL SHUTOFF VALVE -  
GA5010  
For all models. Manual shutoff valve with  
1/8" NPT tap. Fits 1/2" NPT pipe.  
104340  
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VENT-FREE NATURAL GAS LOG HEATER  
ILLUSTRATED  
PARTS  
BREAKDOWN  
1
Variable Manually-Controlled  
Smoky Mountain Oak Models  
4
CGD3018N  
CGD3924N  
CGD3930N  
3
2
20  
18  
23  
12  
19  
11  
10  
13  
7
8
6
21  
9
21  
5
14  
18  
22  
21  
19  
17  
15  
16  
21  
104340  
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OWNER’S MANUAL  
This list contains replaceable parts used in your heater. When ordering parts, follow the  
instructions listed under Replacement Parts on page 25 of this manual.  
PARTS LIST  
Variable Manually-Controlled  
Smoky Mountain Oak Models  
CGD3018N  
CGD3924N  
CGD3930N  
KEY  
NO.  
CGD3018N  
PART NUMBER  
CGD3924N  
PART NUMBER  
CGD3930N  
PART NUMBER  
DESCRIPTION  
QTY.  
1
2
3
4
5
6
7
8
103008-02  
103009-02  
103010-02  
103011-02  
102775-04CK  
102844-02  
102966-02  
098867-14  
102798-01  
102779-03  
099056-26  
102843-01  
102980-01  
102568-07  
098508-01  
098354-01  
102445-01  
099387-08  
098271-07  
104285-01  
M11084-38  
098276-01  
098249-01  
103008-01  
103009-01  
103010-01  
103011-01  
102775-01CK  
102844-01  
102966-01  
098867-14  
102798-01  
102779-01  
099056-16  
102843-01  
102772-01  
102568-05  
098508-01  
098354-01  
102445-01  
099387-08  
098271-07  
104285-01  
M11084-38  
098276-01  
098249-01  
103008-03  
103009-03  
103010-03  
103011-01  
102775-03CK  
102844-01  
102966-01  
098867-14  
102798-01  
102779-01  
099056-16  
102843-01  
102772-01  
102568-05  
098508-01  
098354-01  
102445-01  
099387-08  
098271-07  
104285-01  
M11084-38  
098276-01  
098249-01  
Back Log (#1)  
Middle Log (#2)  
Front Log (#3)  
Crossover Log (#4)  
Painted Base Assembly  
Lower Bracket  
Upper Bracket  
Gas Regulator  
Inlet Tube  
Outlet Burner Tube  
Burner Orifice Injector  
Burner Clip  
Burner  
Control Valve  
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
11  
1
2
9
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
Valve Retainer Nut  
Control Knob  
Piezo Ignitor  
Pilot Tube  
Ignitor Cable  
ODS Pilot  
Hex Screw, #8-18 x .38  
Hex Head Plug, 1/8 NPT  
Nut, M5  
PARTS AVAILABLE — NOT SHOWN  
100563-01  
101055-02  
100565-01  
100639-01  
101449-04  
101137-02  
104310-02  
GA6060  
100563-01  
100563-01  
101055-02  
100565-01  
100639-01  
101449-04  
101137-02  
104310-02  
GA6060  
Warning Plate  
1
1
1
1
1
1
1
1
101055-02  
100565-01  
100639-01  
101449-04  
101137-02  
104310-02  
GA6060  
Lighting Instructions Plate  
Warning Plate Fastener  
Caution Decal  
Control Position Decal  
Hardware Kit  
Information Video  
Lava Rock  
104340  
29  
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VENT-FREE NATURAL GAS LOG HEATER  
ILLUSTRATED  
PARTS  
BREAKDOWN  
3
5
Thermostatically-Controlled  
Premium Aged Split Oak Models  
CGB3924NT  
CGB3930NT  
1
2
4
20  
12  
18  
22  
19  
11  
10  
13  
23  
7
9
14  
8
6
21  
15  
21  
21  
16  
24  
21  
19  
17  
21  
104340  
30  
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OWNER’S MANUAL  
This list contains replaceable parts used in your heater. When ordering parts, follow the  
instructions listed under Replacement Parts on page 25 of this manual.  
PARTS LIST  
Thermostatically-Controlled  
Premium Aged Split Oak Models  
CGB3924NT  
CGB3930NT  
KEY  
NO.  
CGB3924NT  
PART NUMBER  
CGB3930NT  
PART NUMBER  
DESCRIPTION  
QTY.  
1
2
3
4
5
6
7
8
104897-01  
104898-01  
104899-01  
104896-01  
104900-01  
102844-01  
102966-01  
098867-14  
102981-01  
102983-01  
099056-16  
102843-01  
102772-01  
101329-20  
102979-01  
098544-01  
102445-01  
099387-09  
098271-07  
104285-01  
M11084-38  
098249-01  
099211-01  
102775-05CK  
104897-02  
104898-02  
104899-02  
104896-02  
104900-02  
102844-01  
102966-01  
098867-14  
102981-01  
102983-01  
099056-16  
102843-01  
102772-01  
101329-20  
102979-01  
098544-01  
102445-01  
099387-09  
098271-07  
104285-01  
M11084-38  
098249-01  
099211-01  
102775-07CK  
Middle Log (#1)  
Back Log (#2)  
Crossover Log (#3)  
Front Log (#4)  
Log Piece (#5)  
Lower Bracket  
Upper Bracket  
Gas Regulator  
Inlet Tube  
Outlet Burner Tube  
Burner Orifice Injector  
Burner Clip  
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
15  
2
2
1
9
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
Burner  
Thermostat Gas Valve Assembly  
Thermostat Bracket  
Thermobulb Clip  
Piezo Ignitor  
Pilot Tube  
Ignitor Cable  
ODS Pilot  
Hex Screw, #8-18 x .38  
Nut, M5  
Hex Screw, 10-16 x 2.50  
Painted Base Assembly  
PARTS AVAILABLE — NOT SHOWN  
100563-01  
101054-01  
100565-01  
100639-01  
101137-02  
104310-02  
GA6060  
100563-01  
101054-01  
100565-01  
100639-01  
101137-02  
104310-02  
GA6060  
Warning Plate  
1
1
1
1
1
1
1
1
Lighting Instructions Plate  
Warning Plate Fastener  
Caution Decal  
Hardware Kit  
Information Video  
Lava Rock  
Clip, Thermostat  
104340  
31  
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VENT-FREE NATURAL GAS LOG HEATER  
ILLUSTRATED  
PARTS  
BREAKDOWN  
1
Thermostatically-Controlled  
Smoky Mountain Oak Models  
4
3
CGD3018NT  
2
CGD3924NT  
CGD3930NT  
20  
12  
22  
19  
18  
11  
10  
13  
7
23  
9
14  
8
6
21  
15  
21  
21  
16  
5
21  
19  
17  
21  
104340  
32  
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OWNER’S MANUAL  
This list contains replaceable parts used in your heater. When ordering parts, follow  
the instructions listed under Replacement Parts on page 25 of this manual.  
PARTS LIST  
Thermostatically-Controlled  
Smoky Mountain Oak Models  
CGD3018NT  
CGD3924NT  
CGD3930NT  
KEY  
NO.  
CGD3018NT  
PART NUMBER  
CGD3924NT  
PART NUMBER  
CGD3930NT  
PART NUMBER  
DESCRIPTION  
QTY.  
1
2
3
4
5
6
7
8
103008-02  
103009-02  
103010-02  
103011-02  
102775-09CK  
102844-02  
102966-02  
098867-14  
102981-01  
102983-03  
099056-26  
102843-01  
102980-01  
101329-21  
102979-02  
098544-01  
102445-01  
099387-09  
098271-07  
104285-01  
M11084-38  
098249-01  
099211-01  
103008-01  
103009-01  
103010-01  
103011-01  
102775-05CK  
102844-01  
102966-01  
098867-14  
102981-01  
102983-01  
099056-16  
102843-01  
102772-01  
101329-20  
102979-01  
098544-01  
102445-01  
099387-09  
098271-07  
104285-01  
M11084-38  
098249-01  
099211-01  
103008-03  
103009-03  
103010-03  
103011-01  
102775-07CK  
102844-01  
102966-01  
098867-14  
102981-01  
102983-01  
099056-16  
102843-01  
102772-01  
101329-20  
102979-01  
098544-01  
102445-01  
099387-09  
098271-07  
104285-01  
M11084-38  
098249-01  
099211-01  
Back Log (#1)  
Middle Log (#2)  
Front Log (#3)  
Crossover Log (#4)  
Painted Base Assembly  
Lower Bracket  
Upper Bracket  
Gas Regulator  
Inlet Tube  
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
15  
2
2
9
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
Outlet Burner Tube  
Burner Orifice Injector  
Burner Clip  
Burner  
Thermostat Gas Valve Assembly  
Thermostat Bracket  
Thermobulb Clip  
Piezo Ignitor  
Pilot Tube  
Ignitor Cable  
ODS Pilot  
Hex Screw, #8-18 x .38  
Nut, M5  
Hex Screw, 10-16 x 2.50  
PARTS AVAILABLE — NOT SHOWN  
100563-01  
101054-01  
100565-01  
100639-01  
101137-02  
104310-02  
GA6060  
100563-01  
101054-01  
100565-01  
100639-01  
101137-02  
104310-02  
GA6060  
100563-01  
101054-01  
100565-01  
100639-01  
101137-02  
104310-02  
GA6060  
Warning Plate  
1
1
1
1
1
1
1
1
Lighting Instructions Plate  
Warning Plate Fastener  
Caution Decal  
Hardware Kit  
Information Video  
Lava Rock  
Clip, Thermostat  
104340  
33  
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VENT-FREE NATURAL GAS LOG HEATER  
ILLUSTRATED  
PARTS  
BREAKDOWN  
1
Variable Manually-Controlled  
Mountain Oak Models  
CY2718N  
CY3124N  
2
3
20  
18  
22  
19  
23  
11  
10  
6
12  
9
8
7
5
21  
21  
4
13  
18  
22  
21  
19  
16  
14  
15  
104340  
34  
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OWNER’S MANUAL  
This list contains replaceable parts used in your heater. When ordering parts, follow the  
instructions listed under Replacement Parts on page 25 of this manual.  
PARTS LIST  
Variable Manually-Controlled  
Mountain Oak Models  
CY2718N  
CY3124N  
KEY  
NO.  
CY2718N  
PART NUMBER  
CY3124N  
PART NUMBER  
DESCRIPTION  
QTY.  
1
2
3
4
5
6
7
8
103729-04  
103730-04  
103731-04  
102775-02CK  
102844-01  
102966-01  
098867-14  
102780-01  
102798-01  
099056-20  
102843-01  
102963-01  
102568-07  
098508-01  
098354-01  
102445-01  
098249-01  
099387-08  
098271-07  
104285-01  
M11084-38  
098276-01  
099553-01  
103729-03  
103730-03  
103731-03  
102775-01CK  
102844-01  
102966-01  
098867-14  
102780-01  
102798-01  
099056-18  
102843-01  
102773-01  
102568-07  
098508-01  
098354-01  
102445-01  
098249-01  
099387-08  
098271-07  
104285-01  
M11084-38  
098276-01  
099553-01  
Back Log (#1)  
Front Log (#2)  
Crossover Log (#3)  
Painted Base Assembly  
Lower Bracket  
Upper Bracket  
Gas Regulator  
Outlet Burner Tube  
Inlet Tube  
Burner Orifice Injector  
Burner Clip  
Burner  
Control Valve  
Valve Retainer Nut  
Control Knob  
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
1
1
1
11  
1
1
9
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
Piezo Ignitor  
Nut, M5  
Pilot Tube  
Ignitor Cable  
ODS Pilot  
Screw, Hex Head (#8-18 x .38)  
Hex Head Plug, 1/8" NPT  
Shield, Pilot  
PARTS AVAILABLE — NOT SHOWN  
100563-01  
101055-02  
100565-01  
100639-01  
101449-04  
101137-02  
104310-02  
GA6060  
100563-01  
Warning Plate  
1
1
1
1
1
1
1
1
101055-02  
100565-01  
100639-01  
101449-04  
101137-02  
104310-02  
GA6060  
Lighting Instructions Plate  
Warning Plate Fastener  
Caution Decal  
Control Position Decal  
Hardware Kit  
Information Video  
Lava Rock  
104340  
35  
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WARRANTY INFORMATION  
KEEP THIS WARRANTY  
Model  
Serial No.  
Date Purchased  
Always specify model and serial numbers when communicating with the factory.  
We reserve the right to amend these specifications at any time without notice. The only warranty applicable is our standard written  
warranty. We make no other warranty, expressed or implied.  
LIMITED WARRANTY  
COMFORT GLOW VENT-FREE NATURAL GAS LOG HEATERS  
DESA International warrants this product to be free from defects in materials and components for two (2) years from the date of first  
purchase, provided that the product has been properly installed, operated and maintained in accordance with all applicable instructions.  
To make a claim under this warranty the Bill of Sale or cancelled check must be presented.  
This warranty is extended only to the original retail purchaser. This warranty covers the cost of part(s) required to restore this heater  
toproperoperatingconditionandanallowanceforlaborwhenprovidedbyaDESAAuthorizedServiceCenter. Warrantypart(s)MUST  
be obtained through authorized dealers of this product and/or DESA International who will provide original factory replacement parts.  
Failure to use original factory replacement parts voids this warranty. The heater MUST be installed by a qualified installer in accordance  
with all local codes and instructions furnished with the unit.  
This warranty does not apply to parts that are not in original condition because of normal wear and tear, or parts that fail or become  
damaged as a result of misuse, accidents, lack of proper maintenance or defects caused by improper installation. Travel, diagnostic cost,  
labor, transportation and any and all such other costs related to repairing a defective heater will be the responsibility of the owner.  
TOTHE FULL EXTENT ALLOWEDBY THE LAW OF THE JURISDICTION THAT GOVERNS THE SALE OF THE PRODUCT;  
THIS EXPRESS WARRANTY EXCLUDES ANY AND ALL OTHER EXPRESSED WARRANTIES AND LIMITS THE DURA-  
TION OF ANY AND ALL IMPLIED WARRANTIES, INCLUDING WARRANTIES OF MERCHANTABILITY AND FITNESS  
FOR A PARTICULAR PURPOSE TO TWO (2) YEARS ON ALL COMPONENTS FROM THE DATE OF FIRST PURCHASE;  
AND DESA INTERNATIONAL’S LIABILITY IS HEREBY LIMITED TO THE PURCHASE PRICE OF THE PRODUCT AND  
DESA INTERNATIONAL SHALL NOT BE LIABLE FOR ANY OTHER DAMAGES WHATSOEVER INCLUDING INDIRECT,  
INCIDENTAL OR CONSEQUENTIAL DAMAGES.  
Some states do not allow a limitation on how long an implied warranty lasts or an exclusion or limitation of incidental or consequential  
damages, so the above limitation on implied warranties, or exclusion or limitation on damages may not apply to you.  
This warranty gives you specific legal rights, and you may also have other rights that vary from state to state.  
For information about this warranty write:  
INTERNATIONAL  
2701 Industrial Drive  
P.O. Box 90004  
Bowling Green, KY 42102-9004  
104340 01  
104340-01  
Rev. C  
03/99  
NOT A UPC  
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