INSTALLATION & OPERATING INSTRUCTIONS
MONTANA-36 AND MONTANA-42
OUTDOOR WOODBURNING FIREPLACE
Note: An arrow (Æ) found in the text signifies change in content.
This fireplace must be installed outside. Significant cold air infiltration will result if it is installed inside a structure.
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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MONTANA INSTALLATION INSTRUCTIONS
A. LISTINGS AND CODE APPROVALS
This fireplace system has been tested and listed in accordance
with UL 127 standards, and has been listed by Underwriters
Laboratories Inc. for installation and operation in the United States
as described in this manual.
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 Heat-N-Glo
LifeStyle Products Technical Services Department, Hearth & Home
Technologies Inc., 20802 Kensington Blvd., Lakeville, MN 55044,
phone 1-952-985-6000.
This fireplace has been tested and listed for use with the optional
components listed on page 4. These optional components may
be purchased separately and installed at a later date. However,
installation of a dual cooling air kit is required and must be installed
at the time of the initial fireplace installation. Failure to do so may
result in a fire causing property damage and/or personal injury.
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 Underwriters 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 Heat-N-Glo fireplace system consists of the
following:
a. Fireplace/Integral Grate/Cooling Air System
b. Refractory
c. Chimney Termination Cap
d. Chimney System
e. Hearth Extension
2. Optional Components Include:
a. Glass Doors
b. Weather Cover
Note: Illustrations used throughout these instructions reflect
“typical installations” and are for design purposes only. Actual
installation may vary slightly due to individual design prefer-
ences. However, minimum and maximum clearances must be
maintained at all times.
The illustrations and diagrams used throughout these installa-
tions instructions are not drawn to scale.
Figure 1 - Typical Fireplace System
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MONTANA INSTALLATION INSTRUCTIONS
C. FIREPLACE SYSTEM COMPONENTS
1. Fireplace Components
Catalog #
MONTANA-36 MONTANA-42
MONTANA-36H MONTANA-42H
Description:
Fireplace, with Integral Grate, Cooling Air Kit, Traditional Brick Refractory
and Hearth Protection Strips
Æ
Æ
Fireplace, with Integral Grate, Cooling Air Kit, Herringbone Pattern
Refractory and Hearth Protection Strips
DM1836
DM1836B
DM1836S
HX3
DM1842
DM1842B
DM1842S
HX4
Bi-fold Glass Doors, Clear-View - Black
Bi-fold Glass Doors, Clear-View - Polished Brass
Bi-fold Glass Doors, Clear-View - Stainless Steel
Hearth Extension
WC42S
GR21
Weather Cover - Stainless Steel
GR33
Integral Grate (included with Fireplace)
Building Set Enclosure
OGL-36
OGL-42
Outdoor Gas Log (natural or propane gas)
Integral Grate
HX3 - Hearth Extension
HX4 - Hearth Extension
Bi-Fold Glass Doors
WC42S - Weather Cover
Fireplace Dimensions
Æ
Model
A
B
C
D
E
F
36 in.
42 in.
25 in. 13-7/8 in. 13-1/4 in. 15-3/4 in.
MONTANA-36
915 mm 1067 mm 635 mm 353 mm 337 mm 400 mm
42 in. 48 in. 31 in. 14 in. 14 in. 16-3/4 in.
MONTANA-42
1067 mm 1219 mm 787 mm 356 mm 356 mm 425 mm
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MONTANA INSTALLATION INSTRUCTIONS
Æ
Æ
Herringbone Pattern
Refractory
Traditional Brick Pattern
Refractory
2. Chimney Components
The following pictures show only those chimney components which may be safely used with this fireplace.
Catalog #
Description:
CAK5A
SL1106
SL1112
SL1118
SL1136
SL1148
SL11
Chimney Air Kit
Chimney Section - 6" long
Chimney Section - 12" long
Chimney Section - 18" long
Chimney Section - 36" long
Chimney Section - 48" long
Chimney Stabilizer
SL1130
FS538
FS540
AS10
Chimney Offset/Return - 30°
Firestop - Straight
Firestop - 30°
Straight Attic Insulation Shield, 24"
Chimney Joint Band
JB577
CB576
RF570
RF571
TR11
Chimney Bracket
Roof Flashing - Flat to 6/12 Pitch
Roof Flashing - 6/12 to 12/12 Pitch
Round Termination Cap
TR11T
ST1175
TCT175
CT56
Round Telescoping Termination Cap
Square Termination Cap
Terra Cotta Termination Cap
Chase Top
Æ
LDS33
LDS46
Decorative Shroud - 3' x 3'
Decorative Shroud - 4' x 6'
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MONTANA INSTALLATION INSTRUCTIONS
Chimney Sections
Catalog #
A
B
SL1106
SL1112
SL1118
SL1136
SL1148
6"
4¾"
SL11 - Chimney Stabilizer
SL1130 - Offset/Return
12" 10¾"
18" 16¾"
36" 34¾"
48" 46¾"
A = Actual length
B = Effective length (length of
chimney part after it has
been snapped to another)
RF570 - Roof Flashing
Flat to 6/12 Pitch
RF571 - Roof Flashing
6/12 to 12/12 Pitch
Firestop Spacer
Catalog #
A
B
FS538
FS540
0°
17"
26"
30°
Æ
AS10
CB576
JB577
Straight Attic
Insulation Shield
Chimney Bracket
Joint Band
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MONTANA INSTALLATION INSTRUCTIONS
ST1175
Square
Termination Cap
LDS33 (3’ x 3’)
LDS46 (4’ x 6’)
Decorative Shroud
TR11
Round
Termination Cap
TR11T
Round Telescoping
Termination Cap
TCT1175
Terra Cotta
Termination Cap
Æ
CT56
Chase Top
CAK5A
Chimney Air Kit
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MONTANA INSTALLATION INSTRUCTIONS
D. PRE-INSTALLATION PREPARATION
1. Fireplace Locations and Space Requirements
This fireplace is intended for installation on an outdoor patio or in your yard. It must never be installed inside of the warm air
envelope of your structure. Significant cold air infiltration will result if it is installed inside of the structure. Figure 2 shows two
typical installations.
Figures 3 and 4 show two typical installations assuming an outside air kit is being used. Therefore, an allowance must be made for
90° bends. Less space is required when ducting goes directly outside without forming elbows.
Figure 2 - Fireplace Locations
Note: If the fireplace is a freestanding fireplace, it must
be located a minimum of 10’ from a combustible struc-
CLEARANCES!
A minimum 1½” air clearance must be maintained
at the back and sides of the fireplace assembly ex-
cept at the nailing flange where the clearance is ½”.
ture.
A minimum height of 6’ 4” measured from the base of the
fireplace to the bottom of the termination cap is permit-
ted in this installation.
Chimney sections at any level require a 2” minimum
air space clearance between the framing and chim-
ney section.
These are rough framing dimensions only.
Æ
Figure 3 - Installation Along a Wall
or an Exterior Chase
Figure 4 - Corner Installation
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 result.
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MONTANA INSTALLATION INSTRUCTIONS
2. Construct an Outdoor Enclosure
This fireplace is intended to be installed outside the house. It may be installed against the outside wall of the house or as a
freestanding fireplace on your porch, patio, or in your yard.
When installing the outdoor fireplace against an outside wall, it must be enclosed to prevent impact damage to the outside of the
fireplace. Build the outside enclosure out of standard building materials, being careful to maintain the minimum air clearances
specified in these installation instructions.
When installing this fireplace as a freestanding fireplace on your porch, patio or in your yard, it must be enclosed to prevent impact
damage to the fireplace. However, the enclosure must not be finished on all four sides. The exterior of the enclosure may be
finished in a textured plywood, a wood clapboard siding, brick, or a cultured stone. Vinyl siding is not recommended for use on the
front of the fireplace due to the heat the fireplace produces. This can cause the vinyl siding to deteriorate.
3. Frame the Fireplace
Æ
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. Any framing across the top of the fireplace
must be above the level of the top standoffs.
CLEARANCES!
A minimum 1½” air clearance must be maintained
at the back and sides of the fireplace assembly ex-
cept at the nailing flange where the clearance is ½”.
Chimney sections at any level require a 2” minimum
air space clearance between the framing and chim-
ney section.
Figure 5 - Framing the Fireplace
WARNING!
Do not apply combustible finishing materials over any part of the stainless face of this fireplace or a structure fire may
result. The fireplace front may only be covered with noncombustible materials such as ceramic 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.
Æ
4. Sidewalls/Surrounds
Adjacent combustible side walls must be
located a minimum of 12” 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
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MONTANA INSTALLATION INSTRUCTIONS
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. Minimum overall straight height is 6’ 4” if the fireplace is freestanding a minimum of 10’ from a
combustible structure. See Figure 2, page 8.
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
7. Maximum unsupported chimney length between the offset and return
8. Maximum straight unsupported chimney height above the fireplace
14 ft.
16 ft.
90 ft.
20 ft.
35 ft.
24 ft.
6 ft.
35 ft.
1. Using Offsets and Returns
a. To bypass any overhead obstructions, the chimney may be offset using a 30° offset/return (SL1130). 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.
Offset/Returns
Table 1
A
B
SL1106 SL1112 SL1118 SL1136 SL1148
WARNING!
37/8
"
14½"
-
-
-
-
-
-
-
Do not com-
bine offsets to
create an off-
6¼"
9¼"
185/8
"
1
-
-
-
23¾"
29"
1
-
-
-
-
12¼"
-
1
-
-
-
set
greater
145/8
175/8
"
33"
-
2
1
-
-
-
than 30° from
vertical. This
may create a
"
38¼"
-
1
-
-
-
21¼" 445/8
"
-
1
1
-
-
fire
hazard
235/8
"
48¾"
1
-
-
-
-
since the natu-
ral draft may
be restricted.
27¼" 55¾"
-
-
1
1
1
1
1
1
1
1
2
Figure 7 - Chimney Offset/Return
295/8
325/8
355/8
38"
"
"
"
59"
1
-
-
-
-
64¼"
69½"
1
-
-
-
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 SL1112s.
-
1
-
-
735/8
"
-
2
1
-
-
41"
78¾"
85"
-
1
-
-
445/8
"
-
1
1
-
47"
891/8
"
1
-
-
-
505/8
"
95½"
-
-
Proper assembly of air cooled chimney parts results in an
overlap at chimney joints of 1¼". Effective length is built into
this table.
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MONTANA 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 ten feet or less, the top of the
chimney must be at least two feet above the peak of the
roof, but never less than three feet in 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 ten feet, a chimney
height reference point is established on the surface of
the roof a distance of ten feet from the side of the chimney
in a horizontal plane. The top of the chimney must be at
least two feet above this reference point, but never less
than three feet in 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.
Figure 8 - Chimney Height
3. Number of Sections Required
To determine the chimney components needed to complete
your particular installation, follow the steps below:
Table 2
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.
HEIGHT OF CHIMNEY COMPONENTS
Chimney Stabilizer
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).
SL11
Firestop Spacers
FS538
43/4
"
0
0
FS540
c. Refer to Table 2 to determine what components must be
selected to complete the fireplace installation.
Offsets/Returns
d. Determine the number of firestop spacers, stabilizers,
SL1130
Roof Flashing
RF570
1
4½"
roof flashing, etc. required to complete the fireplace in-
stallation.
0
0
RF571
Chimney Sections*
SL1106
43/4
"
SL1112
103/4
163/4
"
"
SL1118
SL1136
343/4
463/4
"
SL1148
"
*Dimensions reflect effective height.
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MONTANA INSTALLATION INSTRUCTIONS
F. INSTALLATION OF THE FIREPLACE
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 8 and 9. 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 28” x 4”. These strips are used to provide
added protection where the fireplace and the hearth extension
meet.
Slide each metal strip 2” under the front edge of the fireplace. The
individual pieces must overlap each other by 1” 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”.
3. Level the Fireplace
Figure 9 - Positioning the Metal Strips
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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MONTANA 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 cooling air.
Figure 10
Assembling Chimney
Sections
5. Install Firestop Spacers
Mark and cut out an opening in the ceiling for the firestop
spacer being utilized (17” x 17” for an FS538, 17” x 26” for an
FS540). 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” 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” 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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MONTANA INSTALLATION INSTRUCTIONS
6. Attic Insulation Shield
Æ
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.
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.
a. Bend the tabs at the top of the attic insulation shield
inward. This will help keep the chimney section centered
in the shield.
b. Position the shield over the vertical chimney section
Note: You must provide support for the pipe during con-
struction and check to be sure inadvertent loading has not
dislodged the chimney section from the fireplace or at any
chimney joint.
where it penetrates a firestop spacer.
c. Slide the shield down until it rests on the firestop spacer.
The firestop spacer will support the insulation shield. See
Figure 12.
Figure 12 - Installing an Insulation Shield
Figure 13 - Offset/Return with Stabilizer
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 10 under “Chimney Requirements”.
WARNING!
When chimney sections exceeding six feet in
length are installed between an offset and re-
turn, structural support must be provided to re-
duce off-center loading and prevent chimney
sections from separating at the chimney joints.
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.
CAUTION:
WARNING!
Inner flue and outer liner sections cannot be disas-
sembled once locked together. Plan ahead to ensure
the proper installation height is achieved with the se-
lected chimney components.
Maintain a minimum of 2” air clearance to all parts of
the chimney system at all times! Failure to maintain
this 2” air clearance will cause a structure fire.
WARNING! RISK OF FIRE.
Do not fill the space between the chimney sec-
tion and the insulation shield with insulation.
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MONTANA INSTALLATION INSTRUCTIONS
9. Install the Termination Cap
If a roof flashing is to be used, install the roof flashing
appropriate to the roof pitch and install a round termination
cap following the instructions shipped with the cap.
For chase installations you can use a round termination cap
(TR11), a round telescoping termination cap (TR11T) or a
square termination cap (ST1175). A chase installation must
use a chase top. Chase tops are available from your
Heat-N-Glo distributor.
a. Install the chimney sections up through the chase
enclosure. When using a TR11 round termination cap,
the uppermost top section of pipe must extend 6” above
the top of the chase collar to allow installation of the storm
collar and termination cap. See Figure 14.
b. For installations utilizing a TR11T telescoping round
termination cap, the uppermost chimney section must
be below the top of the chase top, but not more than
14½” below the top of the chase top flashing collar. See
Figure 15.
Figure 14 - Installing a TR11 Round Termination Cap
c. For installations utilizing an ST1175 square termination
cap the last chimney section must not be more than 4½”
below the chase top. See Figure 16.
d. Attach the chase top to the top of the chase.
e. Install the termination cap, following the
instructions provided with it.
Figure 16
Installing an ST1175 Square Termination Cap
Figure 15 - Installing a TR11T Round Telescoping
Termination Cap
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MONTANA INSTALLATION INSTRUCTIONS
10. Install the Cooling Air Kit (furnished)
The cooling air kit is supplied as a standard feature
with this fireplace and is required for safe operation.
Installation must be done at the time of initial
construction. The cooling air inlet tubes must be a
minimum of 72” above the base of the fireplace. This
is to prevent potential blockage by snow or yard debris.
See Figure 17.
To install the air kit collar, slide one of the tabs down
into the seam. See Figure 18. Secure the collar tabs
to the fireplace with screws placed into the holes
provided. See Figure 19.
Repeat for the other side.
Note: The cooling air kit must terminate at least six
feet above ground level.
Figure 18 - Slide the Tabs
Figure 19 - Secure the Tabs
11. Install the Chimney Air Kit
When installing the chimney air kit, follow the instructions
provided with this accessory.
Figure 17- Cooling Air Location
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MONTANA INSTALLATION INSTRUCTIONS
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 1½” must be maintained between the fireplace sides
and the enclosure as well as the fireplace back and the
enclosure. See pages 8 and 9 for framing details.
Note: Use only a noncombustible material to finish
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.
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 certified or tested for outdoor use, with a
maximum input of 100,000 BTU/hour, incorporating an
automatic gas shut-off 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 ½” 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 1½” air clearance must be provided
around the ½” iron pipe for a minimum of 4 inches beyond
the fireplace. See Figure 20.
Figure 20 - Air Clearance Around Gas Line
CLEARANCES!
A minimum 1½” air clearance must be maintained
at the back and sides of the fireplace assembly ex-
cept at the nailing flange where the clearance is ½”.
Chimney sections at any level require a 2” minimum
air space clearance between the framing and chim-
ney section.
WARNING!
This fireplace was not tested by the fireplace
manufacturer 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 specifically tested and listed by
Underwriter’s Laboratories Inc. for use in this
specific model fireplace. Unless the unvented gas
log heater is tested and listed for use in this fac-
tory built fireplace, a fire hazard may be created
that can result in a structure fire.
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MONTANA 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 21 and 22. Ahearth 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 21 - Factory Built Hearth Extension
Field constructed hearth extensions should be constructed in accordance with the instructions in Figure 22. The field constructed
hearth extension must be constructed from ½” MICORE CV230, or a material with an equivalent insulation value.
Figure 22 - 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
inadvertently falling directly on combustible surfaces in the event the building should settle and
disturb the original construction.
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MONTANA INSTALLATION INSTRUCTIONS
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” from
under the fireplace front and 2” on both sides of the fireplace
opening. Seal the crack between the hearth extension and
fireplace with a bead of noncombustible sealant. See
Figure 23. Apply a noncombustible finishing material of your
choice to the hearth extension.
Do not install combustible materials over the face of the
fireplace! This poses a safety hazard and may start a fire.
You may only use noncombustible material over the 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 ½” 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 metal fireplace front.
Figure 23 - Position the Hearth Extension
17. Mantel
A combustible mantel may be positioned no lower than 12”
above the top of the fireplace opening. See Figure 6, page 9.
The combustible mantel may have a maximum depth of 12”.
Combustible trim pieces that project no more than 1½” from
the face of the fireplace can be placed no closer than 6” from
the top of the fireplace opening. Combustible trim must not
cover the 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.
19. Chase Top
Construct a chase of desired materials maintaining a minimum
2” air space around the chimney.
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MONTANA INSTALLATION INSTRUCTIONS
WARNING!
Never install a single wall slip section or smoke-pipe in
a chase structure. The higher temperature of this single
wall pipe may radiate sufficient heat to combustible
chase materials to cause a fire.
WARNING!
Detailed instructions for installation of the chase top, 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.
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MONTANA INSTALLATION INSTRUCTIONS
G. OPERATING INSTRUCTIONS
Note: Save and pass this instruction manual to subsequent home owners. The information
provided is intended to notify and warn them about making unsafe future modifications
such as the addition of shelves or the use of unauthorized parts and repairs.
Note: Some discoloration may appear over time.
WARNING!
Care must be taken when burning this fireplace. Wind and wind gusts can cause sparks to be blown out of the
hearth area of the fireplace and pose a fire hazard to any combustible material they come in contact with. Do
not operate this fireplace when it is windy. If the wind becomes a problem when the fireplace is in use, close
the glass doors and allow the fireplace to go out. Be certain to check that no sparks or embers have escaped
from the fireplace hearth area.
1. General Information
2. Flue Damper
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.
The flue damper must be in a full open position, and is
operated by moving the handle up toward the top of the
fireplace. Before lighting the fire, verify this by looking up from
the inside of the fireplace. Always operate this fireplace with
the damper fully open. Please note: down drafts, obstructions,
damaged or poor (wet) fuels can cause smoke spillage.
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 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.
Use of an unvented gas log heater in this factory built
fireplace may create a fire hazard that can result in a
structure fire.
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MONTANA INSTALLATION INSTRUCTIONS
3. Glass Doors
5. Firescreen
Most efficient fireplace operation using glass doors is with
the doors open. When the doors are open, the screen must
be closed. Only Hearth Technologies Inc. glass doors may
be used. See Figure 24 for proper glass door operation.
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.
CAUTION:
When left closed while burning your fireplace,
firescreens and glass doors will be HOT.
Handle with care!
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”.
Figure 24
Proper Operating Positions of Bi-Fold Doors
4. 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.
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MONTANA INSTALLATION INSTRUCTIONS
6. Wood Fuel
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).
SEASONING: Seasoned firewood is nothing more than 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.
The following guideline will ensure properly seasoned 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.
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.
c. The smaller the pieces, the faster the drying process.
Any piece over six inches in diameter should be split.
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.
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.
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.
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.
WARNING!
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.
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MONTANA INSTALLATION INSTRUCTIONS
7. 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.
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.
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.
As you use the fireplace, expansion and contraction
will cause minor cracking of the refractory. This is
normal, unavoidable, and will not affect the perfor-
mance 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.
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.
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.
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MONTANA 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 repaired by replacing
the damaged component parts. Chimney fires are not cov-
ered by the Limited Warranty and Buyer Protection Plan.
2. Creosote and Soot
4. Clear Space Near the Fireplace
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.
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.
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.
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 25.
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.
Figure 25
Chimney & Termination Cap Cleaning
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MONTANA INSTALLATION INSTRUCTIONS
Homeowner’s Notes
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MONTANA INSTALLATION INSTRUCTIONS
INDEX
A
G
S
Air Clearance 14, 17
ÆAAstthiceIsn,sDuilsaptioosnaSl ohfiel2d5 6, 14
Gas Codes 17, 21
Gas Log/Lighter Provisions 17
General Information 21
Glass Doors 19
Safety 12
Seasoning the Wood 23
Shroud 7
Sidewalls/Surrounds 9
Soot 25
Æ
B
Grate 22
Space Requirements 8
Standard for Decorative Gas Appliances
17, 21
Starting a Fire 24
Surrounds 9
Building Codes 3, 19
H
C
Hearth Extension 18
Positioning 19
Chase Top 7, 19
Chimney
Checking the Assembly 14
Cleaning 25
Creosote 25
Height Requirements 11
Requirements 10
Securing the System 14
Chimney Air Kit 7, 16
Chimney Bracket 6
Chimney Requirements 10
Chimney Sections
Assembling 13
Number Required 11
Chimney Stabilizer 6
Codes
Building 3, 19
Gas 17, 21
Combustible
Material 18
Combustible Material 19
Components
I
T
Installation
Æ
Ten Foot Rule 11
Fireplace 12
ÆTermination Cap 7
Installation Along a Wall 8
Installation, Corner 8
Insulation Shield 6, 14
Typical Fireplace System 3
U
J
UL 127 Standards 3
Unvented Gas Log Heater 17, 21
Joint Band 6
W
L
Wood
Leveling the Fireplace 12
Locations 8
Moisture of 23
Seasoning of 23
Wood Fuel 23
M
Mantel 9, 19
Material, Sealant 19
Metal Hearth Strips 12
Moisture Content of Wood 23
Æ
Chimney 5
Fireplace 4
N
Noncombustible Material 19
Noncombustible Sealant Material 19
Construction 18, 19
Creosote 25
O
D
Offsets/Returns 6, 10
Description of the Fireplace System 3
Overhead Obstructions 10
Dimensions 4
Æ
P
F
Positioning 12
Fireplace
Enclosure 17
Locations 8
Firescreen 22
Firestop Spacer 6
Installation 13
Firewood 23
Flue 21
R
Roof Flashing 6, 15
Framing 9
Fuel 23
Æ
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WARRANTY
FOR HEAT-N-GLO FIREPLACES
The limited warranty will not become effective until you have mailed the completed warranty card to:
Hearth & Home Technologies Inc., A DIVISION OF HON Industries
20802 Kensington Blvd., Lakeville, MN 55044.
This card must be mailed within 60 days of the fireplace installation.
Subject to the conditions set forth herein, HEARTH & HOME TECHNOLOGIES INC. (HHT) extends the following limited
warranty with respect to your Heat-N-Glo fireplace, excluding accessories, chimney components and glass doors.
If HHT is satisfied that any part or portion of the fireplace covered by this warranty is defective in material or workmanship
under normal use and service as described in the operating instructions, HHT will take the following actions:
1.
Within the first five (5) years from the date of installation, HHT shall, at its option, replace or repair
any such defect in material or workmanship, at HHT’s expense. HHT SHALL NOT BE
RESPONSIBLE FOR ANY OTHER LABOR COSTS, OR EXPENSES, INCLUDING INDIRECT,
INCIDENTAL OR CONSEQUENTIAL DAMAGES.
2.
3.
During the sixth (6th) through the (10th) years after the date of installation, HHT shall supply
replacement parts or parts at no charge, but SHALL NOT BE RESPONSIBLE FOR ANY LABOR,
TRANSPORTATION, OR OTHER INDIRECT DAMAGES.
During the eleventh (11th) through the fifteenth (15th) years after date of installation, HHT will send
to you, FOB its factory, replacement parts (if available) at the current minimum wholesale price, but
HHT SHALL NOT BE RESPONSIBLE FOR ANY LABOR, TRANSPORTATION OR OTHER INDIRECT
DAMAGES.
4.
During the first six (6) months after installation, HHT shall, at its option, replace or repair the glass
doors and any electrical components, if operation is faulty. (This does not include glass panels
broken during shipment, misuse or careless handling.) After the first six (6) months, HHT will sell to
you, FOB its factory, replacement parts at the current list price, but HHT SHALL NOT BE
RESPONSIBLE FOR ANY LABOR, TRANSPORTATION OR OTHER INDIRECT DAMAGES. IF
GLASS DOORS OTHER THAN FACTORY DOORS ARE USED ALL WARRANTY AND LIABILITY ON
THE FIREPLACE IS VOIDED.
HHT may discharge its entire warranty liability by refunding the price of the product.
Products made by other manufacturers, sold with the fireplace or thereafter are not covered by this limited warranty.
This limited warranty will be void if the fireplace is not installed according to the installation instructions. The limited warranty
also is void if the fireplace is not operated, at all times, according to the operating instructions furnished. The limited warranty
will also be void if the fireplace is removed from the place originally installed.
EXCEPT TO THE EXTENT PROVIDED BY LAW, NO IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FORA
PARTICULAR PURPOSE, AND NO IMPLIED WARRANTIES SHALL APPLY TO THE FIREPLACE AFTER THE ABOVE
LIMITED WARRANTY HAS EXPIRED.
In states that do not allow limitations on how long implied warranty lasts, or do not allow exclusion of indirect damages, those
limitations or exclusions may not apply to you. You may also have additional rights not covered in this limited warranty.
HHT reserves the right to make changes at anytime, without notice, in design, material, specifications and prices and the
right to discontinue styles and products.
• UNDERWRITERS LABORATORIES FILE NO. MH5850
Jan 2003
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