Heart Home Collectables Indoor Fireplace MHC36 User Manual

INSTALLATION & OPERATING  
INSTRUCTIONS  
MHC36 MHR36  
WOODBURNING FIREPLACE  
FOR MANUFACTURED HOUSING  
Note: An arrow () found in the text signifies change in content.  
WARNING!  
Improper installation, adjustment, alteration, service or maintenance can cause injury or property damage. Refer to this  
manual. For assistance or additional information, consult a qualified installer, service agency or the gas supplier.  
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MHC36 AND MHR36 INSTALLATION INSTRUCTIONS  
DESIGN AND INSTALLATION CONSIDERATIONS  
When selecting a location for your woodburning fireplace, it is important to evaluate a number of considerations. Modern  
construction techniques can create conditions that may not allow your chimney to draft properly. This may result in smoke  
spillage from your fireplace, as well as cause other combustion appliances to operate incorrectly.  
Tightly sealed construction is important for energy efficiency. Unfortunately, a great deal of effort has been directed to  
tightening up sidewall construction, while considerably less attention has been paid to tightening upper portions of the  
warm air envelope (insulated ceilings). This has increased the “Stack Effect”, a condition that increases the negative  
pressure generated by the structure. This negative pressure will directly affect the drafting performance of a fireplace  
chimney. To minimize the negative pressure generated by stack effect, make certain that all duct work installed in the attic  
spaces is sealed airtight. Minimize the number of recessed light fixtures installed in the insulated ceiling, and use sealed  
recessed light fixtures. Finally, make certain the whole house fans and attic access panels are tightly sealed. These are  
important design considerations that must be observed during the design and construction stage of the home.  
If you desire to put a fireplace in your basement, we recommend that you consider a direct vent gas fireplace. Basements  
always have a significant negative air pressure that causes the fireplace system to be more susceptible to smoke spillage  
and cold flue back drafting. Since direct vent gas fireplaces are sealed, they are not affected by the negative pressure that  
exists in basements.  
Finally, woodburning fireplaces perform best when their chimney (roof termination) is located on the upper half of the roof,  
especially when cathedral ceilings are present. Chimneys that are located on the lower half of the roof realize what is  
known as “lazy flue” and will not draft as well as a chimney that is located in the upper portion of the roof. The reason for  
this is that the stack effect generated by the overall height of the living spaces inside the house will exceed the draft  
generated by the chimney system. If you desire to place a woodburning fireplace in a location where the termination cap  
would be located on the lower half of a roof, such as on an outside wall at the base of a cathedral ceiling, we recommend  
that you consider using a direct vent gas fireplace. This will assure the homeowner a fireplace that operates correctly.  
These properties do not affect just your woodburning factory built fireplace. They can cause any woodburning fireplace as  
well as any conventionally vented (B-vent) gas appliance to operate improperly. Careful planning at this stage of your  
project will ensure satisfaction with the operation of your fireplace once it is completed.  
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MHC36 AND MHR36 INSTALLATION INSTRUCTIONS  
A. LISTINGS AND CODE APPROVALS  
This fireplace system has been tested and listed in  
Check with your local building code agency prior to installing  
this fireplace to ensure compliance with local codes,  
including the need for permits and follow-up inspections. If  
you need assistance during installation, please contact your  
local dealer or the Heatilator Technical Services  
Department, Hearth & Home Technologies Inc., 1915 W.  
Saunders St., Mt. Pleasant, Iowa 52641 (1-800-843-2848).  
accordance with UL 127 standards, and has been listed by  
Underwriters Laboratories Inc. for installation and operation  
in the United States.  
This fireplace has been tested and listed for use with the  
optional components listed on page 5. These optional  
components may be purchased separately and installed at  
a later date. However, installation of an outside air kit will  
require significant reconstruction, and should be installed  
at the time of the initial fireplace installation.  
Heatilator® is a registered trademark of Hearth & Home  
Technologies Inc.  
WARNING!  
This fireplace and its components are designed to be installed and operated as a system. Any alteration to or  
substitution for items in this system, unless allowed by these installation instructions, will void the Underwrit-  
ers Laboratories listing and may void the product warranty. It may also create a hazardous installation. Read  
through these instructions thoroughly before starting your installation and follow them carefully throughout  
your project.  
B. DESCRIPTION OF THE FIREPLACE SYSTEM  
1. The Heatilator fireplace system consists of the  
following:  
Note: Illustrations used throughout these instructions  
reflect “typical installations” and are for design purposes  
a. Fireplace/Integral Grate/Outside Combustion Air  
System  
b. Refractory  
only. Actual installation may vary slightly due to individual  
design preferences. However, minimum and maximum  
clearances must be maintained at all times.  
c. Chimney Termination Cap  
d. Chimney System  
e. Hearth Extension  
The illustrations and diagrams used throughout these  
installation instructions are not drawn to scale.  
The CP311 Convenience Pack has been designed  
for the convenience of customers wishing to install a  
chimney system at the 11 ft minimum straight height.  
The CP313 Convenience Pack has been designed for  
those wishing to install a chimney system at the 13 ft  
minimum straight height.  
The following combination of listed parts are included  
in both the CP311 and CP313 Convenience Packs:  
CP311 & CP313 Convenience Packs  
Cat. #  
SL324  
SL336  
MH842  
TR344  
Qty.  
2
Description:  
Chimney Section - 24 in. long  
Chimney Section - 36 in. long  
Roof Thimble and Flashing  
Round Termination Cap  
2
1
1
2. Optional Components Include:  
a. Glass Doors  
b. Fan Kit (MHC36 only)  
Figure 1 - Typical Fireplace System  
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MHC36 AND MHR36 INSTALLATION INSTRUCTIONS  
C. SYSTEM COMPONENTS  
1. Fireplace Components  
Catalog #  
Description:  
MHR36  
MHC36  
DM1036  
Radiant Fireplace, with Integral Grate, Hearth Protection Strips and Outside Air Kit  
Circulating Fireplace, with Integral Grate, Hearth Protection Strips, Fan Kit and Junction Box  
Bi-fold Glass Doors - Black Finish  
DM1036B Bi-fold Glass Doors - Polished Brass Finish (included with fireplace)  
DM1036S Bi-fold Glass Doors - Stainless Steel Finish  
DP1036  
Peception Glass Doors - Black Finish  
DP1036B Perception Glass Doors - Polished Brass Finish  
DP1036S Perception Glass Doors - Stainless Steel Finish  
FK22*  
JK9*  
Fan Kit (MHC36 only)  
Junction Box (MHC36 only)  
BC10  
HX3  
Fan Motor Rheostat Control (MHC36 only)  
Hearth Extension  
GR16  
Integral Grate (included with fireplace)  
Outside Air Kit (included with fireplace)  
*The junction box and fan kit should be installed at the time of initial fireplace installation.  
Otherwise, significant reconstruction will be required. Refer to the installation instructions included  
with the JK9 and FK22 for proper installation.  
Bi-Fold Glass Doors  
DM1036  
DM1036B  
Perception Glass Doors  
DP1036  
DP1036B  
DM1036S  
DP1036S  
HX3 - Hearth Extension  
GR16 - Integral Grate  
FK22 - Fan Kit (MHC36 only)  
BC10 - Fan Motor  
Rheostat Control  
(MHC36 only)  
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MHC36 AND MHR36 INSTALLATION INSTRUCTIONS  
Fireplace Dimensions  
2. Chimney Components  
The following pictures show only those chimney components which may be safely used with this fireplace.  
Catalog #  
Description:  
SL306  
SL312  
SL318  
SL324  
SL336  
SL348  
SL315  
SL330  
JB877  
CB876  
TR344  
CP311  
CP313  
MH841  
MH842  
AS8  
Chimney Section - 6 in. long  
Chimney Section - 12 in. long  
Chimney Section - 18 in. long  
Chimney Section - 24 in. long  
Chimney Section - 36 in. long  
Chimney Section - 48 in. long  
Chimney Offset/Return - 15 deg  
Chimney Offset/Return - 30 deg  
Chimney Joint Band  
Chimney Bracket  
Round Termination Cap  
Manufactured Housing Convenience Pack - 11 ft  
Manufactured Housing Convenience Pack - 13 ft  
Manufactured Housing 20 in. Thimble Extension  
Manufactured Housing Thimble and Flashing  
Attic Insulation Shield  
RF370  
RF371  
Roof Flashing - 6/12 to 12/12 Pitch  
Roof Flashing - Flat to 6/12 Pitch  
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MH841  
Chimney Sections  
Catalog #  
SL306  
SL312  
SL318  
SL324  
SL336  
SL348  
A
B
6 in.  
4-3/4 in.  
10-3/4 in.  
16-3/4 in.  
22-3/4 in.  
34-3/4 in.  
46-3/4 in.  
12 in.  
18 in.  
24 in.  
36 in.  
48 in.  
MH842-Roof Thimble & Flashing  
A = Actual Length  
B = Effective length (length of  
chimney part after it has  
been snapped to another)  
Firestop Spacer  
Catalog #  
FS338  
A
B
0-deg. 14-1/2 in.  
15-deg. 18-3/8 in.  
FS339  
FS340  
30-deg.  
23 in.  
SL330 - Offset/Return  
CB876  
Chimney Bracket  
TR344  
Round Termination Cap  
with Storm Collar  
JB877-Joint Band  
Outside Air Kit  
AS8  
Attic Insulation Shield  
RF371-Roof Flashing  
Flat to 6/12 Pitch  
RF370-Roof Flashing  
6/12 to 12/12 Pitch  
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MHC36 AND MHR36 INSTALLATION INSTRUCTIONS  
D. PRE-INSTALLATION PREPARATION  
1. Fireplace Locations and Space Requirements  
Several options are available to you when choosing a location for your fireplace. This fireplace may be used as a  
room divider, installed along a wall or across a corner. See Figure 2.  
Locating the fireplace in a basement, near frequently opened doors, central heat outlets or returns, or other locations  
of considerable air movement can affect the performance and cause intermittent smoke spillage from the front of the  
fireplace. Consideration should be given to these factors before deciding on a location.  
CLEARANCES!  
A minimum 1 in. air clearance  
must be maintained at the  
back and sides of the fire-  
place assembly except at the  
nailing flange where the  
clearance is 1/2 in.  
Chimney sections at any level  
require a 2 in.minimum air  
space clearance between the  
framing and chimney section.  
Figure 2 - Fireplace Locations  
WARNING!  
1. Do not install in sleeping rooms.  
2. Combustion air needs of a heavily fired fireplace may deplete the available oxygen supply.  
CAUTION:  
The structural integrity of the manufactured  
housing floor, wall, ceiling and roof must be  
maintained.  
WARNING!  
For all manufactured housing installations the outside air kit, glass door kit and MH842 manufactured  
housing roof thimble and flashing kit, must be used.  
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Figures 3 and 4 show two typical installations assuming an outside air kit is being used. Therefore, an allowance must  
be made for 90-deg bends. Less space is required when ducting goes directly outside without forming elbows.  
These are rough framing  
dimensions only.  
Figure 3  
Installation Along a Wall  
Figure 4  
Corner Installation  
WARNING!  
Do not draw outside air from garage spaces. Exhaust products of gasoline engines are haz-  
ardous.  
Do not install outside air ducts such that the air may be drawn from attic spaces, basements or  
above the roofing where other heating appliances or fans and chimneys exhaust or utilize air.  
These precautions will reduce the possibility of fireplace smoking or air flow reversal.  
WARNING!  
To prevent contact with sagging or loose insulation, the fireplace must not be installed against  
vapor barriers or exposed insulation. Localized overheating could occur and a fire could re-  
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MHC36 AND MHR36 INSTALLATION INSTRUCTIONS  
2. Frame the Fireplace  
The MHR36 and MHC36 fireplaces will fit a framed opening of 39-5/8 in. wide x 33-5/8 in. tall. The finished cavity  
depth must be no less than 19-3/4 in.  
Figure 5 shows a typical framing (using 2 x 4 lumber) of the fireplace, assuming combustible materials are used.  
All required clearances to combustibles around the fireplace must be adhered to. Chimney sections at any level  
require a 2 in. minimum air space clearance between the framing and chimney section.  
Note: The top header may be positioned on the hemmed  
seam across the top of the fireplace assembly.  
Figure 5 - Framing the Fireplace  
CLEARANCES!  
A minimum 1 in. air clearance must be  
maintained at the back and sides of the  
fireplace assembly except at the nail-  
ing flange where the clearance is 1/2 in.  
Chimney sections at any level require a  
2 in. minimum air space clearance be-  
tween the framing and chimney section.  
WARNING!  
Do not apply combustible finishing materials over any part of the black face of this fireplace or a structure fire  
may result. The black metal fireplace front may only be covered with noncombustible materials such as ce-  
ramic tile, brick, or stone. Do not cover or block any cooling air slots. Do not cover any portion of the opening  
to the fireplace that would prevent the installation of an authorized glass door.  
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MHC36 AND MHR36 INSTALLATION INSTRUCTIONS  
3. Sidewalls/Surrounds  
Adjacent combustible side walls must be located a minimum of 12 in. from the fireplace opening. See Figure 6. If  
you are using a decorative surround constructed of combustible material, it must be located within the shaded area  
defined in Figure 6. Short stub walls are also acceptable if they are contained within the shaded area.  
Figure 6 - Sidewalls and Surrounds  
E. CHIMNEY REQUIREMENTS  
When planning your fireplace location, the chimney construction and necessary clearances must be considered. The  
fireplace system and chimney components have been tested to provide flexibility in construction. The following figures are  
the minimum distances from the base of the fireplace.  
1. Minimum overall straight height  
2. Minimum height with offset/return  
3. Maximum height  
4. Maximum chimney length between an offset and return  
5. Maximum distance between chimney stabilizers  
6. Double offset/return minimum height  
14.5 ft  
14.5 ft  
90 ft  
20 ft  
35 ft  
20 ft  
6 ft  
7. Maximum unsupported chimney length between the offset and return  
8. Maximum straight unsupported chimney height above the fireplace  
25 ft  
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MHC36 AND MHR36 INSTALLATION INSTRUCTIONS  
1. Using Offsets and Returns  
a. To bypass any overhead obstructions, the chimney may be offset using a 15-deg (SL315) or 30-deg (SL330)  
offset/return. Perform the following steps to determine the correct chimney component combination for your  
particular installation.  
b. An offset and return may be attached together or a chimney section(s) may be used between an offset and  
return.  
1) Measure how far the chimney needs to be shifted to enable it to avoid the overhead obstacle. See Figure 7,  
dimension “A” to determine chimney sections required to achieve the needed shift.  
2) After determining the offset dimension, refer to Table 1 and find the “A” dimension closest to but not less  
than the distance of shift needed for your installation.  
3) The “B” dimension that coincides with the “A” dimension represents the required vertical clearance that is  
needed to complete the offset and return.  
4) Read across the chart and find the number of chimney sections required and the model number of those  
particular chimney parts.  
5) Whenever the chimney penetrates a floor/ceiling, a firestop spacer must be installed.  
6) The effective height of the fireplace assembly is measured from the base of fireplace to top of starter  
collar. See Figure 6.  
WARNING!  
Do not combine offsets to create an offset greater than 30 deg from verti-  
cal. This may create a fire hazard since the natural draft may be restricted.  
Example: Your “A” dimension from Figure 7 is 14½”. Using  
Table 1 the dimension closest to, but not less than 14½” is  
145/8” using a 30° offset/return. It is then determined from the  
table that you would need 33” (Dimension “B”) between the  
offset and return. The chimney components that best fit your  
application are two SL312s.  
Figure 7 - Chimney Offset/Return  
Table 1  
Offset Chart*  
15°  
30°  
A
B
A
B
SL306 SL312 SL318 SL324 SL336 SL348  
1-5/8 in. 13-3/8 in. 3-7/8 in. 14-1/2 in.  
2-7/8 in. 17-3/4 in. 6-1/4 in. 18-5/8 in.  
4-1/8 in. 22-3/8 in. 8-5/8 in. 22-3/4 in.  
4-1/2 in. 23-5/8 in. 9-1/4 in. 23-3/4 in.  
5-3/4 in. 28-1/4 in. 11-5/8 in. 27-7/8 in.  
6 in. 29-3/8 in. 12-1/4 in. 29 in.  
7-1/4 in. 34 in. 14-5/8 in. 33 in.  
7-3/4 in. 36-1/8 in. 15-1/4 in. 34-1/8 in.  
8-3/4 in. 39-3/4 in. 17-5/8 in. 38-1/4 in.  
-
1
2
-
-
-
-
-
-
-
-
1
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
1
1
-
-
1
-
-
-
-
2
-
-
-
1
1
1
-
* Proper assembly of air cooled chimney parts result in an overlap at chimney joints  
of 1-1/4 in. Effective length is built into this chart.  
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MHC36 AND MHR36 INSTALLATION INSTRUCTIONS  
2. Chimney Height Requirements (above roof  
line)  
a. Major building codes specify a minimum chimney  
height above the roof top. These specifications  
are summarized in what is known as the Ten Foot  
Rule. This rule states:  
“If the horizontal distance from the side of the  
chimney to the peak of the roof is 10 ft or less, the  
top of the chimney must be at least 2 ftabove the  
peak of the roof, but never less than 3 ftin overall  
height above the highest point where it passes  
through the roof.  
“If the horizontal distance from the side of the  
chimney to the peak of the roof is more than 10 ft,  
a chimney height reference point is established  
on the surface of the roof a distance of 10 ftfrom  
the side of the chimney in a horizontal plane. The  
top of the chimney must be at least 2 ftabove this  
reference point, but never less than 3 ftin height  
above the highest point where it passes through  
the roof.” See Figure 8.  
b. These chimney heights are necessary in the  
interest of safety but do not ensure smoke-free  
operation. Trees, buildings, adjoining roof lines,  
adverse wind conditions, etc. may create a need  
for a taller chimney should smoking occur.  
3. Number of Sections Required  
Figure 8 - Chimney Height  
To determine the chimney components needed to  
complete your particular installation, follow the steps  
below:  
Table 2  
HEIGHT OF CHIMNEY COMPONENTS  
Chimney Stabilizer  
a. Determine the total vertical height of the fireplace  
installation. This dimension is measured from the  
base of the fireplace assembly to the point where  
the smoke exits the termination cap.  
SL3  
43/4"  
Firestop Spacers  
b. Subtract the effective height of the fireplace  
assembly from the overall height of the fireplace  
installation (measured from the base of the  
fireplace to the bottom of the termination cap).  
FS338  
0"  
0"  
0"  
FS339  
FS340  
Offsets/Returns  
c. Refer to Table 2 to determine what components  
must be selected to complete the fireplace  
installation.  
SL315  
133/8"  
141/2"  
SL330  
Roof Flashing  
d. Determine the number of firestop spacers,  
stabilizers, roof flashing, etc. required to  
complete the fireplace installation.  
RF370  
0
0
RF371  
Chimney Sections*  
SL306  
43/4"  
SL312  
103/4"  
163/4"  
223/4"  
343/4"  
463/4"  
SL318  
SL324  
SL336  
SL348  
* Dimensions reflect effective height  
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MHC36 AND MHR36 INSTALLATION INSTRUCTIONS  
F. FIREPLACE INSTALLATION  
WARNING!  
Before starting, do the following:  
1. Wear gloves and safety glasses for protection.  
2. Keep hand tools in good condition. Sharpen cutting edges and make sure tool handles are secure.  
3. Always maintain the minimum air space required to the enclosure to prevent fire.  
1. Position the Fireplace  
This fireplace may be placed on either a combustible  
or noncombustible continuous flat surface. Follow the  
instructions for framing on pages 9-11. Slide the  
fireplace into position. Be sure to provide the  
minimum air clearance at the sides and back of  
the fireplace assembly.  
2. Place the Protective Metal Hearth Strips  
Included with your fireplace you will find two metal  
hearth strips measuring approximately 26 in. x 4 in.  
These strips are used to provide added protection  
where the fireplace and the hearth extension meet.  
Slide each metal strip 2 in.under the front edge of the  
fireplace. The individual pieces must overlap each  
other by 1 in. minimum in the middle of the fireplace  
to provide continuous coverage of the floor. See  
Figure 9. These metal strips should extend from the  
front and sides of the fireplace opening by 2 in.  
Figure 9 - Positioning the Metal Strips  
3. Level the Fireplace  
Level the fireplace side-to-side and front-to-back. Shim  
with noncombustible material, such as sheet metal,  
as necessary. Secure the fireplace (using the nailing  
flanges located on either side of the fireplace) to the  
vertical framing.  
Important: To ensure proper fit of the glass doors,  
check the fireplace opening for square. Measure  
diagonal distances of the opening to make sure  
they are equal. If they are not equal, continue to  
shim the fireplace until those diagonals are equal.  
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MHC36 AND MHR36 INSTALLATION INSTRUCTIONS  
4. Assemble Chimney Sections  
Attach either a straight chimney section or an offset to  
the top of the fireplace (depending on your installation  
requirement). Chimney sections are locked together  
by pushing downward until the top section meets the  
stop bead on the lower section.  
The inner flue is placed to the inside of the flue section  
below it. The outer casing is placed outside the outer  
casing of the chimney section below it. See Figure 10.  
WARNING!  
Carefully follow the instructions for assembly  
of the pipe and other parts needed to install this  
fireplace system. Failure to do so may result in  
a fire, especially if combustibles are too close  
to the fireplace or chimney and air spaces are  
blocked, preventing the free movement of cool-  
ing air.  
Figure 10  
Assembling Chimney  
Sections  
5. Install the Firestop Spacers  
Mark and cut out an opening in the ceiling for the  
firestop spacer being utilized (14 1/2 in. x 14-1/2 in.  
for an FS338, 14-1/2 in. x 18-3/8 in. for an FS339  
and 14-1/2 in. x 23 in. for an FS340). Frame the  
opening with the same dimension lumber used in  
the ceiling joists.  
Install the firestop spacer.  
These firestop spacers are designed to provide the  
minimum 2 in. air space required around the  
chimney. In all situations, the firestop spacers are to  
be nailed to the ceiling joists from the bottom or  
fireplace side, EXCEPT when the space above is an  
insulated ceiling or attic space. In this situation, the  
firestop spacer must be nailed from the top side to  
prevent loose insulation from falling into the  
required 2 in. air space around the chimney. See  
Figure 11.  
CAUTION:  
Firestop spacers must be used whenever the  
chimney penetrates a ceiling/floor area.  
Figure 11  
Installing the Firestop Spacer  
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MHC36 AND MHR36 INSTALLATION INSTRUCTIONS  
6. Attic Insulation Shield  
8. Secure the Chimney System  
An insulation shield should be installed when there is  
a possibility of insulation coming into contact with the  
factory built chimney system. The insulation shield is  
installed by positioning it over the vertical chimney  
section where it penetrates a firestop spacer. The  
firestop spacer will support the insulation shield. See  
Figure 12.  
When offsets and returns are joined to straight pipe  
sections, they must be locked into position with the  
screws provided (outer only), using the predrilled holes.  
To prevent gravity from pulling the chimney sections  
apart, the returns and the chimney stabilizers have  
straps for securing these parts to joists or rafters. See  
Figure 13.  
Note: You must provide support for the pipe dur-  
ing construction and check to be sure inadvertent  
loading has not dislodged the chimney section  
from the fireplace or at any chimney joint.  
Figure 12 - Installing an Attic Insulation Shield  
7. Double-check the Chimney Assembly  
Continue assembling the chimney sections up through  
the firestop spacers as needed. While doing so, be  
aware of the height and unsupported chimney length  
limitations that are given on page 11 under “Chimney  
Requirements”.  
Figure 13 - Offset/Return with Stabilizer  
Check each section by pulling up slightly from the top  
to ensure proper engagement before installing the  
succeeding sections. If they have been connected  
correctly, they will not disengage when tested.  
WARNING!  
When chimney sections exceeding 6 ft in length  
are installed between an offset and return,  
structural support must be provided to reduce  
off-center loading and prevent chimney sections  
from separating at the chimney joints.  
CAUTION:  
Inner flue and outer liner sections cannot be  
disassembled once locked together. Plan ahead  
to ensure the proper installation height is  
achieved with the selected chimney compo-  
nents.  
WARNING!  
Maintain a minimum of 2 in. air clearance to all  
parts of the chimney system at all times! Fail-  
ure to maintain this 2 in. air clearance will cause  
a structure fire.  
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9. MH842 Ceiling/Roof Thimble  
See Figures 14 and 15.  
a. Locate the point where the chimney will exit the  
roof by plumbing down to the center of the  
chimney. Lay out, cut and frame a 14-1/2 in. square  
opening (measured on the horizontal) through the  
ceiling and roof structure. See Chapter 25 of the  
Uniform Building Code for roof framing details.  
b. The thimble must extend completely through the  
roof structure shielding combustible materials.  
Five location holes have been provided to allow  
for a variety of ceiling/roof thicknesses. The  
thimble extension is required when the ceiling/roof  
thickness exceeds 12-1/2 in. The extension  
should overlap the thimble 1 in.  
c. To attach the extension to the thimble, drill 1/8 in.  
holes through the outer shield of the thimble using  
the predrilled holes in the extension as guides.  
Attach the extension to the thimble using the  
screws provided with the extension.  
d. Install the thimble assembly and nail it securely  
to the framing members.  
e. Center the flashing over the chimney and nail it to  
the roof using the Stormguard nails provided. Keep  
gaps between the flashing plate and the roof to a  
minimum  
f. Caulk the flashing plate and roof junction as well  
as the vertical seam on the flashing. All nail heads  
must be caulked with a roofing sealant.  
Figure 14 - Ceiling/Attic Construction  
Note: Roofing shingles must be below the flash-  
ing plate on the lower side of a sloped roof and  
over the flashing plate on the sides and top.  
g. Finish assembling the chimney, storm collar and  
termination cap following the installation  
instructions provided with them.  
Note: The closed end of  
the thimble is positioned  
towards the bottom.  
Figure 15 - Installing an MH842  
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MHC36 AND MHR36 INSTALLATION INSTRUCTIONS  
WARNING!  
WARNING!  
This fireplace has not been tested for use with  
a chase above the roof. To reduce the risk of  
fire, do not install a chase above the roof.  
Do not pack insulation in spaces between the two shields  
or above the shield inside the flashing. This may affect  
temperatures to adjacent combustibles. See page 13  
for minimum chimney height above roof.  
WARNING!  
Detailed instructions for installation of the storm collar and termination cap are packaged with these parts. To  
avoid danger of fire, all instructions must be strictly followed, including the provision of air space clearance  
between chimney system and enclosure. To protect against the effects of corrosion on those parts exposed to  
the weather, we recommend that the chase top and termination cap be painted with a rust-resistant paint.  
10. Install the Outside Air Kit  
The outside air kit is supplied as a standard feature  
with this fireplace and its use is required. It is  
recommended to utilize the shortest duct run to  
optimize the performance of the outside air kit. The  
outside air kit inlet thimble should be positioned at  
least 4 ft above the ground level, in a manner that will  
not allow snow, leaves, etc. to block the inlet.  
The outside air kit is installed on the left hand side of  
the fireplace. Remove the cover plate from the side of  
the fireplace assembly where the air kit is to be  
installed. See Figure 16 for handle location/operation.  
Figure 16 - Air Kit Handle Location  
11. Termination Cap  
a. Install the chimney sections up through the ceiling/  
roof. When using the TR344 round termination  
cap, the uppermost section of pipe must extend  
6 in. above the roof to allow installation of the  
storm collar and termination cap. See Figure 17.  
CAUTION:  
The air kit handle may get hot while burning the fire-  
place. Use care when operating the handle.  
b. Install the termination cap, following the  
instructions provided with it.  
Figure 17 - Installing a TR344 Round Termination Cap  
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12. Complete the Enclosure  
Complete the fireplace enclosure, allowing space for  
outside air ducts and gas piping if desired. Electrical  
wiring should not come in contact with the fireplace. A  
minimum clearance of 1 in. must be maintained  
between the fireplace sides and the enclosure  
(except at the nailing flange) as well as the fireplace  
back and the enclosure. See pages 9-11 for framing  
details.  
Note: Use only a noncombustible material to fin-  
ish the face of the fireplace below the level of the  
front standoffs. A noncombustible material such as  
USG MICORE CV230 Mineral Fiber Board, or USG  
DUROCK Cement Board is recommended for this  
purpose.  
CAUTION:  
When using a gas log set, the fireplace damper  
must be set in the fully open position. This en-  
sures proper venting of combustion products.  
Figure 18 - Air Clearance Around Gas Line  
13. Gas Log/Lighter Provisions  
Knockouts are provided on both sides of the fireplace  
to allow for connection of a certified gas log lighter or  
a decorative gas appliance with a maximum input of  
100,000 BTU/hour, incorporating an automatic gas  
shutoff device and complying with the Standard for  
Decorative Gas Appliances for Installation in  
Vented Fireplaces, ANSI Z21.60. The decorative gas  
appliance should be installed in accordance with the  
National Fuel Gas Code, ANSI Z223.1-1980. The side  
refractories are designed to allow 1/2 in. iron pipe to  
pass through. Use a noncombustible sealant to seal  
any opening between the gas pipe and refractory on  
the inside. Repack the insulation removed to seal  
around the gas pipe where it exits the side of the  
fireplace. A minimum 1-1/2 in. air clearance must be  
provided around the 1/2 in. iron pipe for a minimum of  
4 in. beyond the fireplace. See Figure 18.  
CLEARANCES!  
A minimum 1 in. air clearance must be maintained  
at the back and sides of the fireplace assembly ex-  
cept at the nailing flange where the clearance is  
1/2 in.  
Chimney sections at any level require a 2 in. mini-  
mum air space clearance between the framing and  
chimney section.  
WARNING!  
This fireplace has been set up for installation of the  
gas pipe on the right hand side. If it is necessary to  
plumb the fireplace from the left hand side, remove  
the gas cover plate and gas tube from the right hand  
side of the fireplace and install on the left hand side.  
Cover the hole in the right hand side outershell of the  
fireplace with the cover plate that covered the gas tube.  
This fireplace was not tested by the fireplace manu-  
facturer for use with an unvented gas log heater. To  
reduce risk of injury, do not install an unvented gas  
log heater in this fireplace unless it has been spe-  
cifically tested and listed by Underwriter’s Labora-  
tories Inc. for use in this specific model fireplace.  
Unless the unvented gas log heater is tested and  
listed for use in this factory built fireplace, a fire  
hazard may be created that can result in a structure  
fire.  
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MHC36 AND MHR36 INSTALLATION INSTRUCTIONS  
14. Hearth Extension  
A hearth extension must be installed with all fireplaces to protect the combustible floor in front of the fireplace from  
both radiant heat and sparks.  
The construction of, and materials used for a hearth extension are shown in Figures 19 and 20. A hearth extension  
of this construction may be covered with any noncombustible decorative material and may have a maximum thickness  
as per the illustration. Seal gaps between the hearth extension and the front of the fireplace with a bead of  
noncombustible sealant.  
Figure 19 - Factory Built Hearth Extension  
Field constructed hearth extensions should be constructed in accordance with the instructions in Figure 20. The field  
constructed hearth extension must be constructed from 1/2 in. MICORE CV230, or a material with an equivalent  
insulation value.  
Figure 20 - Field Constructed Hearth Extension  
WARNING!  
Hearth extensions are to be installed only as illustrated to prevent high temperatures from occurring  
on concealed combustible materials. Hearth sealing strips prevent burning or hot particles from inad-  
vertently falling directly on combustible surfaces in the event the building should settle and disturb  
the original construction.  
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15. Position the Hearth Extension  
16. Finishing Material  
Position and secure the hearth extension over the  
protective metal strips that have been placed partially  
under the fireplace front. These strips should be  
protruding approximately 2 in. from under the fireplace  
front and 2 in. on both sides of the fireplace opening.  
Seal the crack between the hearth extension and  
fireplace with a bead of noncombustible sealant.  
See Figure 21. Apply a noncombustible finishing  
material of your choice to the hearth extension.  
Do not install combustible materials over the black  
face of the fireplace! This poses a safety hazard  
and may start a fire. You may only use noncombustible  
material over the black face of the fireplace.  
a. Combustible Material  
Material which is made of or surfaced with wood,  
compressed paper, plant fibers, plastics, or any  
material capable of igniting and burning, whether  
flame proofed or not, plastered or unplastered.  
b. Noncombustible Material  
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.  
c. Noncombustible Sealant Material  
Sealants which will not ignite and burn; General  
Electric RTV103 Black (or equivalent), Rutland,  
Inc. Fireplace Mortar #63 (or equivalent).  
After completing the framing and applying the  
facing material (dry wall) over the framing, a 1/2 in.  
wide (maximum) bead of noncombustible sealant  
must be used to close off any gaps at the top and  
sides between the fireplace and facing to prevent  
cold air leaks.  
Only noncombustible materials may be used to  
cover the black metal fireplace front.  
Figure 21 - Position the Hearth Extension  
17. Mantel  
A combustible mantel may be positioned no lower  
than 12 in. above the top of the fireplace opening.  
The combustible mantel may have a maximum depth  
of 12 in. Combustible trim pieces that project no more  
than 1-1/2 in. from the face of the fireplace can be  
placed no closer than 6 in. from the top of the fireplace  
opening. Combustible trim must not cover the black  
metal surfaces of the fireplace. This mantel clearance  
is in accordance with Section 7-3.3.3 of ANSI/  
NFPA211.  
18. Glass Doors  
This fireplace has been tested and listed for use with  
doors as specified in Section “C. Fireplace System  
Components”. Please refer to the manual packed with  
each set of doors for installation instructions.  
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MHC36 AND MHR36 INSTALLATION INSTRUCTIONS  
G. OPERATING INSTRUCTIONS  
Note: Save and pass this instruction manual to subsequent home owners. The informa-  
tion provided is intended to notify and warn them about making unsafe future modifica-  
tions such as the addition of shelves or the use of unauthorized parts and repairs.  
1. General Information  
2. Outside Air  
This fireplace is intended to operate as a supplemental  
heat source for a single room. It is not designed to  
function as a primary heat source for a structure.  
A source of air (oxygen) is required in order for  
combustion to take place. Whatever air is consumed  
by the fire must be replaced through cracks around  
windows, under doors, etc. Most newly constructed  
houses or existing homes fitted with tightly sealed doors  
and windows are relatively air tight. In this case, an  
outside air source must be made available to feed  
combustion air from outside the home.  
Fireplaces, as well as other woodburning appliances,  
have been used safely for many years. It has been our  
experience that most problems are caused by improper  
installation and operation of the fireplace. Make certain  
that installation and operation of the fireplace system  
is in accordance with these instructions.  
A damper control handle allows the individual control  
of the outside air inlet if your fireplace is equipped with  
this option. Use of outside air for combustion is highly  
recommended to conserve heated air within the  
structure and to provide make up air to keep the  
fireplace venting properly.  
It is extremely important that the fire be supervised  
whenever the fireplace is in use. It is also  
recommended that an annual inspection be performed  
on the fireplace system to determine if the flue system  
needs to be cleaned, or as in the case of any appliance,  
if minor repairs are required to maintain the system in  
top operating condition.  
This fireplace will operate correctly only if adequate  
ventilation is provided to allow proper draft to the  
fireplace system. Hearth & Home Technologies  
assumes no responsibility for the improper  
performance of the fireplace system caused by  
inadequate draft due to environmental conditions, down  
drafts, tight sealing construction of the structure, or  
mechanical exhausting devices which create a  
negative air pressure within the structure where the  
fireplace is located.  
This factory built fireplace is intended for use with either  
solid fuel (firewood) or a decorative gas appliance that  
has been tested and listed to the Standard for  
Decorative Gas Appliances for Installation in  
Vented Fireplaces, ANSI Z21.60. When operating  
your fireplace, the flue damper must be in the open  
position.  
This fireplace was not tested and listed for use with an  
unvented gas log heater. Do not install an unvented  
gas log heater in this fireplace and operate it with the  
flue damper in the closed position unless the unvented  
gas log heater has been specifically tested and listed  
for use in this fireplace by Underwriters Laboratories  
Inc.  
CAUTION:  
Fireplace operation does require air. Do not take  
air from other fuel burning appliances which can  
result in improper venting (smoking) or air di-  
lution. Always provide adequate makeup air.  
Use of an unvented gas log heater in this factory  
built fireplace may create a fire hazard that can  
result in a structure fire.  
3. Flue Damper  
WARNING!  
The flue damper must be in a full open position. Before  
lighting the fire, verify this by looking up from the inside  
of the fireplace. Always operate this fireplace with the  
damper fully open. Pull the handle down to open and  
push the handle up to close. Please note: down drafts,  
obstructions, damaged or poor (wet) fuels can cause  
smoke spillage.  
DO NOT operate this fireplace with the flue  
damper in the closed position. Combustion  
products must vent up the chimney system to  
prevent carbon monoxide poisoning, and to  
prevent hot combustion gases from contacting  
and overheating combustible surfaces. Failure  
to operate this fireplace with the damper in the  
open position may result in asphyxiation or a  
structure fire.  
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4. Glass Doors  
7. Wood Fuel  
Most efficient fireplace operation using glass doors is  
with the doors open. When the doors are open, the  
screen must be closed. Only Hearth & Home  
Technologies glass doors may be used. See Figure 22  
for proper glass door operation.  
FIREWOOD: Your fireplace performance depends on  
the quality of the firewood you use. All seasoned wood,  
regardless of species, contains about 8,000 BTU’s per  
pound, and hardwoods have a greater density than  
soft woods. Apiece of hardwood will contain about 60%  
more BTU’s than an equal size piece of soft wood.  
Firewood is commonly sold by the cord (128 cu. ft.). A  
cord of seasoned oak (hardwood) would contain about  
60% more potential energy than a cord of seasoned  
pine (soft wood).  
Soft woods are generally considered coniferous. These  
are trees with needle-like leaves that stay green all  
year and carry their seeds exposed in a cone.  
Examples of soft wood trees are Douglas fir, pine,  
spruce, and cedar. Soft woods require less time to dry,  
burn faster and are easier to ignite than hardwoods.  
Hardwoods are generally considered deciduous.  
Deciduous trees are broadleaf trees that lose their  
leaves in the fall. Their seeds are usually found within  
a protective pod or enclosure. Some examples are oak,  
maple, apple, and birch. It should be noted that there  
are some deciduous trees that are not considered  
hardwoods, such as poplar, aspen, and alder.  
Hardwoods require more time to season, burn slower  
and are usually harder to ignite than soft woods.  
Figure 22  
Proper Operating Positions of Bi-Fold Doors  
5. Grate  
The factory installed integral grate must be used to  
hold the logs from falling out of an open fireplace and  
to allow air to pass between the burning logs. It is  
important to keep the fire off the hearth and to allow  
the ashes to collect beneath the fire, thereby forming  
a layer of additional heat protection.  
The best wood fuel is a combination of soft wood and  
hardwood. Start the fire with soft wood; the fire will give  
off quick heat to bring the appliance up to operating  
temperature, and then the hardwood can be added for  
slow, even heat and longer burn time.  
MOISTURE: Regardless of which species of wood you  
burn, the single most important factor that effects the  
way your fireplace operates is the amount of moisture  
in the wood. The majority of the problems fireplace  
owners experience are caused by trying to burn wet,  
unseasoned wood.  
6. Firescreen  
A firescreen is always provided to control sparks. It  
must be closed whenever the fireplace is in use. Glass  
doors or firescreens must not be used to hold burning  
material inside the fireplace. Only those glass doors  
specifically tested and listed for use with the specific  
fireplace model should be used. Screens should be  
closed when the glass doors are closed.  
Freshly cut wood can be as much water as it is wood,  
having a moisture content of around 50%. Imagine a  
wooden bucket that weighs about eight pounds. Fill it  
with a gallon of water, put it in the fireplace and try to  
burn it. This sounds ridiculous but that is exactly what  
you are doing if you burn unseasoned wood.  
CAUTION:  
When left closed while burning your fireplace,  
firescreens and glass doors will be HOT.  
WARNING!  
Handle with care!  
Burning wet, unseasoned wood can cause ex-  
cessive creosote accumulation. When ignited  
it can cause a chimney fire that may result in a  
serious house fire.  
WARNING!  
Do not store fuel within the clearances to com-  
bustibles, or in the space required for refueling  
and ash removal. See maintenance instructions,  
“Clear Space Near the Fireplace”.  
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MHC36 AND MHR36 INSTALLATION INSTRUCTIONS  
SEASONING: Seasoned firewood is nothing more than  
Note: The first three or four fires should be of mod-  
erate size to allow the oils and binders to be burned  
from the fireplace and the refractory and paint to  
cure. You may notice an industrial odor the first few  
fires. This is considered normal.  
wood that is cut to size, split and air dried to a moisture  
content of around 20%. The time it takes to season  
wood varies from around nine months for soft woods  
to as long as eighteen months for hardwoods. The key  
to seasoning wood is to be sure it has been split,  
exposing the wet interior and increasing the surface  
area of each piece. A tree that was cut down a year  
ago and not split is likely to have almost as high a  
moisture content now as it did when it was cut.  
As you use the fireplace, expansion and contrac-  
tion will cause minor cracking of the refractory. This  
is normal, unavoidable, and will not affect the per-  
formance of the fireplace. If the cracks become large  
enough that the metal behind the refractory is ex-  
posed or large pieces fall out, the panels should  
be replaced.  
The following guideline will ensure properly seasoned  
wood:  
a. Stack the wood to allow air to circulate freely  
around and through the woodpile.  
b. Elevate the woodpile off the ground to allow air  
circulation underneath.  
CAUTION:  
Never use gasoline, gasoline-type lantern fuel,  
kerosene, charcoal lighter fluid, or similar liq-  
uids to start or “freshen up” a fire in this fire-  
place. Keep all such liquids well away from the  
fireplace.  
c. The smaller the pieces, the faster the drying  
process. Any piece over 6 in. in diameter should  
be split.  
d. Cover the top of the woodpile for protection from  
rain and snow. Avoid covering the sides and ends  
completely. Doing so may trap moisture from the  
ground and impede air circulation.  
The problems with burning wet, unseasoned wood are  
twofold: First, you will receive less heat output from  
wet wood because it requires energy in the form of  
heat to evaporate the water trapped inside. This is  
wasted energy that should be used for heating your  
home. Secondly, this moisture evaporates in the form  
of steam which has a cooling effect in your fireplace  
and chimney system. When combined with tar and  
other organic vapors from burning wood it will form  
creosote which condenses in the relatively cool  
fireplace and chimney.  
WARNING!  
Fireplaces equipped with doors should be op-  
erated only with the doors fully open or fully  
closed. If doors are left partially open, gas and  
flame may be drawn out of the fireplace open-  
ing, creating the risk of both fire and smoke.  
9. Draft Problems  
Note: When first lighting your fireplace, it may be  
necessary to pre-warm the flue to establish a draft.  
This is done by holding a rolled up piece of burn-  
ing newspaper under the flue damper for a few mo-  
ments. This will help reduce smoke spillage dur-  
ing start-up.  
8. Starting a Fire  
Check the flue damper to be certain it is in the full open  
position. Place crumpled or twisted paper under the  
fireplace grate. Loosely arrange kindling or small  
pieces of wood to form a layer above the paper.  
The fires must be built on the fireplace grate, without  
danger of the burning fuel falling out of the fireplace  
opening.  
This fireplace will operate correctly only if adequate  
ventilation is provided to allow proper draft to the  
fireplace system. Hearth & Home Technologies  
assumes no responsibility for the improper  
performance of the fireplace system caused by  
inadequate draft due to environmental conditions, down  
drafts, tight sealing construction of the structure, or  
mechanical exhausting devices which will create a  
negative air pressure within the structure where the  
fireplace is located.  
Light the paper and add small pieces of wood until a  
hot bed of embers has been established.  
After establishing the fire bed, and the small firewood  
is burning briskly, add a minimum of three average  
sized pieces of split firewood, place the wood in such  
a manner to allow combustion air and flames between  
them.  
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Flue draft is measured as negative pressure in the  
chimney. The amount of negative pressure determines  
how strong the draft is. The draft is important because  
it draws the combustion air into the fireplace and pulls  
the smoke out of the chimney. There are three basic  
criteria essential in establishing and maintaining flue  
draft:  
If the fire is hard to start and smoke spills out of the  
fireplace, or you find it difficult to establish and maintain  
a moderately high burn rate, then the flue draft is too  
low and corrective measures must be taken.  
Be sure you have air available for combustion and that  
your firewood is dry and well seasoned. Build your fires  
properly and according to the instructions given in  
operating instructions, “Starting a Fire”. Be sure your  
flue system is installed correctly and that it is the proper  
diameter and height. Check for the following:  
Availability of combustion air.  
Heat generated from the fire.  
Diameter and height of the flue system.  
These three factors work together as a system to create  
the flue draft. Increasing or decreasing any one of them  
will affect the other two and thus change the amount  
of draft in the entire system. See Figure 23.  
All chimney sections are properly installed and the  
joints are tightly sealed.  
The chimney is clean and free of creosote buildup.  
Make sure overhanging trees and branches are  
cut back within ten feet of the top of the chimney.  
Ensure the chimney cap is clean and free of any  
buildup of soot or creosote.  
If you still suspect you have a low draft problem it may  
be necessary to increase the volume of air in your flue  
system. Since the diameter of your flue system is  
matched with the size of the flue collar and should not  
be changed, then the height of the system must be  
increased. Add chimney sections a little at a time until  
the draft improves.  
In some cases, regardless of what you do, it can still  
be difficult to establish the proper flue draft. This is  
especially evident when using an exterior factory built  
chimney or exterior masonry chimney. Try placing  
several sheets of crumpled paper on top of your kindling  
as close to the flue outlet of the fireplace as possible.  
Light this paper first then the paper under the kindling.  
The heat generated from the rapidly burning paper on  
top of the kindling should help get the draft established.  
Still other factors can affect how well your flue system  
performs. Neighboring structures, high winds, tall trees,  
even hillsides can affect air currents around the  
chimney. Well designed chimney caps are available  
that can help. Your fireplace dealer is the local expert  
in your area. He or she can usually make suggestions  
or discover problems that can be easily corrected  
allowing your fireplace to operate correctly as it has  
been designed, providing safe and economical heat  
for your home.  
Figure 23 - Flue Draft  
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MHC36 AND MHR36 INSTALLATION INSTRUCTIONS  
H. MAINTENANCE INSTRUCTIONS  
1. Disposal of Ashes  
Ashes should be placed in a metal container with a  
tight-fitting lid. The closed container of ashes should  
be placed on a noncombustible floor or on the ground,  
well away from all combustible materials, pending final  
disposal. If the ashes are disposed of by burial in soil  
or otherwise locally dispersed, they should be retained  
in the closed container until all embers have thoroughly  
cooled.  
WARNING!  
A chimney fire can permanently damage your  
chimney system. This damage can only be re-  
paired by replacing the damaged component  
parts. Chimney fires are not covered by the Lim-  
ited Warranty and Buyer Protection Plan.  
2. Creosote and Soot  
Inspect the chimney internally for obstructions and  
construction damage. Flue pipe joints and seams must  
be continuous and mechanical tight. In a used chimney,  
additional inspection is needed for creosote buildup,  
which is the formation of a flammable sediment.  
When wood is burned slowly, it produces tar and other  
organic vapors, which combine with expelled moisture  
to form creosote. The creosote vapors condense in  
the relatively cool chimney flue of a slow-burning fire.  
As a result, creosote residue accumulates on the flue  
lining. When ignited, this creosote makes an extremely  
hot fire.  
The chimney should be inspected at least twice a year  
during the heating season to determine if creosote  
buildup has occurred.  
Figure 24  
Chimney & Termination Cap Cleaning  
If creosote has accumulated, it should be removed  
to reduce the risk of a chimney fire.  
3. Chimney Cleaning  
If you do detect a buildup of creosote, contact a  
qualified chimney sweep or clean it yourself. To do this,  
perform the following steps:  
a. Open the damper.  
b. Hang a damp sheet across the fireplace opening  
to stop dirt and soot from entering the room.  
c. Remove the termination cap or housing top. See  
Figure 24.  
d. Clean with a stiff nylon brush attached to a pole  
OR tie a small burlap bag filled with straw and  
several small stones or sand. Work up and down  
the flue until the flue is clean.  
e. Replace the termination cap or housing top.  
4. Clear Space Near the Fireplace  
Combustible materials must not be stored on the hearth  
extension. Room furnishings such as drapes, curtains,  
chairs, or other combustibles must be at least four feet  
from the open front of the fireplace.  
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MHC36 AND MHR36 INSTALLATION INSTRUCTIONS  
INDEX  
A
P
Air Clearance 16, 19  
Air Kit 7, 18  
Air Kit Handle Location 18  
Ashes, Disposal of 26  
Attic Insulation Shield 16  
Firewood 22, 23  
Flashing 17  
Flue 22  
Framing 10  
Fuel 22, 23  
Positioning 14  
Pre-Installation Preparation 8  
R
Roof Flashing 7, 17  
Roof Thimble 7, 17  
B
G
S
Building Codes 4, 13, 17, 21  
Gas Codes 19, 22  
Gas Knockout Location 6  
Gas Log/Lighter Provisions 19  
General Information 22  
Glass Doors 5, 21, 23  
Grate 5, 23  
Safety 14  
C
Seasoning the Wood 24  
Sidewalls/Surrounds 11  
Smoke 9  
Chimney  
Checking the Assembly 16  
Cleaning 26  
Creosote 26  
Soot 26  
Space Requirements 8  
Standard for Decorative Gas Appli-  
ances 19, 22  
Starting a Fire 24  
Surrounds 11  
H
Height Requirements 13  
Requirements 11  
Securing the System 16  
Chimney Bracket 7  
Chimney Sections  
Assembling 15  
Number Required 13  
Codes 4  
Building 4, 13, 17, 21  
Gas 19, 22  
Combustible  
Material 20  
Combustible Material 21  
Components 5  
Construction 20  
Creosote 26  
Hearth Extension 20  
Positioning 21  
I
T
Installation  
Along a Wall 9  
In a Corner 9  
Insulation Shield 16  
Ten Foot Rule 13  
Termination Cap 7, 18  
Typical Fireplace System 4  
J
U
Joint Band 7  
UL 127 Standards 4  
Unvented Gas Log Heater 19, 22  
L
V
Leveling the Fireplace 14  
Locations 8  
Ventilation 24  
D
M
W
Damper 22  
Description of the Fireplace System 4  
Dimensions 6  
Doors 5, 21, 23  
Draft 24  
Mantel 11, 21  
Wet Insulation 2  
Wood  
Moisture of 22, 23  
Seasoning of 24  
Wood Fuel 22, 23  
Material, Sealant 21  
Metal Hearth Strips 14  
MH842 7  
Moisture Content of Wood 22, 23  
E
N
Exhaust Products 9  
Negative Air Pressure 24  
Noncombustible Material 21  
Noncombustible Sealant Material 21  
F
Fan Kit 5  
Finishing 21  
Fireplace  
O
Enclosure 19  
Locations 8  
Firescreen 23  
Firestop Spacer  
Installation 15  
Offsets/Returns 7, 12  
Outside Air 22  
Outside Air Kit 7, 18  
Overhead Obstructions 12  
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27  
HEATILATOR WOODBURNING FIREPLACE  
Limited Warranty  
As part of its  
20-YEAR BUYER PROTECTION PROGRAM  
AS PART OF ITS 20 YEAR BUYER PROTECTION PROGRAM (“PROGRAM”), HEARTH & HOME TECHNOLOGIES INC.  
(“HHT”) is pleased to offer a Limited Warranty and a Replacement Parts Advantage covering specific components of your Heatilator  
woodburning fireplace system ( the “Fireplace”), installed in the United States of America or Canada. Dealers and employees of HHT have no  
authority to make any warranty or authorize any remedies in addition to or inconsistent with the terms of this Program.  
Limited Warranty  
HHT warrants the following components of your Heatilator woodburning fireplace to be free from original defects in material and workmanship  
during the applicable periods described: five years for the firebox assembly, chimney system and roof termination; two years for refractory  
firebox liners; and one year for the grate, wire mesh screens, fan system, outside air system, and glass doors. All limited warranty periods run  
from the date of initial installation of your Fireplace (the “Installation Date”). The Limited Warranty is subject to the conditions, exclusions and  
limitations of liability listed below.  
Replacement Parts Advantage  
Under HHT’s Replacement Parts Advantage, for a period of twenty years from your Installation Date of your Fireplace, if available, HHT will  
provide you with repair or replacement parts for defective components which are no longer under their applicable Limited Warranty, at 50% of  
the then current retail list price for such components. HHT shall have no responsibility for freight and labor charges related to such parts.  
Conditions, Exclusions, & Limitations of Liability  
A. Both the Limited Warranty and Replacement Parts Advantage supplied by HHT apply only while the Fireplace is in its location of  
original installation. HHT’s obligation under this warranty does not extend to damages resulting from (1) installation, operation or  
maintenance of the Fireplace not in accordance with the Installation Instructions, Operating Instructions, and the Listing Agent Identification  
Label furnished with the Appliance; (2) installation which does not comply with local building codes; (3) shipping, improper handling,  
improper operation, abuse, misuse, accident or unworkmanlike repairs; (4) environmental conditions, inadequate ventilation or drafting  
caused by tight sealing construction of the structure, air handling devices such as exhaust fans or forced air furnaces, or other causes;  
(5) use of fuels other than those specified in the Operating Instructions; (6) installation or use of components not supplied with the  
Fireplace or any other components not expressly authorized and approved by HHT; and/or (7) modification of the Fireplace not expressly  
authorized and approved by HHT in writing. This warranty is limited to only the component parts manufactured or supplied by HHT.  
B. During the first year of the Limited Warranty, HHT will, at its sole option, repair or replace any covered defective component and will  
provide replacement parts at no charge. And will pay reasonable labor and freight costs. During the second through the fifth years of the  
Limited Warranty (if applicable), HHT will provide replacement parts free of charge for any covered defective component, but will not pay  
for freight or labor costs related to the shipment of the parts or the actual repair or replacement. After the fifth anniversary of the  
Installation date, HHT’s sole obligation and your exclusive remedy is set forth in HHT’s Replacement Parts Advantage described above.  
In no event shall HHT be liable for any incidental or consequential damages caused by defects in your Fireplace.  
C. EXCEPT TO THE EXTENT PROVIDED BY LAW, HHT MAKES NO EXPRESS WARRANTIES OTHER THAN THE WARRANTY  
SPECIFIED HEREIN. THE DURATION OF ANY IMPLIED WARRANTY IS LIMITED TO DURATION OF THE WARRANTY SPECIFIED  
ABOVE.  
D. Some states do not allow exclusions or limitations of incidental or consequential damages, so those limitations may not apply to  
you. This warranty gives you specific rights; you may also have other rights which vary from state to state.  
How to Obtain Service  
1. To obtain service under this warranty you must:  
2. Send written notice of the claimed condition to Heatilator Technical Service Department, Hearth & Home Technologies, 1915 W.  
3. Provide proof of purchase, model number, serial number, and manufacturing date code to HHT.  
4. Provide HHT reasonable opportunity to investigate the claim, including reasonable opportunity to inspect the Appliance prior to any  
repair or replacement work and before the Appliance or any component of the Appliance has been removed from the place of original  
installation.  
5. Obtain HHT’s consent to any warranty work before the work is done.  
ADDITIONAL INFORMATION: If you would like information on current HEATILATOR products or want to locate a dealer in your area, call  
1-800-843-2848.  
2003 Heatilator is a Registered Trademark of Hearth & Home Technologies Inc.  
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