Heat & Glo MONTANA-42C User manual

Heat & Glo LifeStyles Collection • Montana-42C • 4039-155 Rev D • 03/06 1
Owner’s Manual
Installation and Operation
Models:
Montana-42C
Woodburning Fireplace
DO NOT DISCARD THIS MANUAL
CAUTION
• Important operating
and maintenance
instructions included.
• Leave this manual with
party responsible for
use and operation.
• Read, understand
and follow these
instructions for safe
installation and
operation.
DO NOT
DISCARD
Installation and service of this fireplace should
be performed by qualified personnel. Hearth
& Home Technologies suggests NFI certified
or factory-trained professionals, or technicians
supervised by an NFI certified
professional.
HOT! DO NOT TOUCH.
SEVERE BURNS MAY RESULT.
CLOTHING IGNITION MAY RESULT.
WARNING
• Keep children away.
• CAREFULLY SUPERVISE children in same room
as fireplace.
• Alert children and adults to hazards of high
temperatures.
• Keep clothing, furniture, draperies and other
combustibles away.
Glass and other surfaces are hot
during operation and cool down.
If the information in these instruc-
tions is not followed exactly, a
fire may result causing property
damage, personal injury, or death.
• Do not store or use gasoline or other flam-
mable vapors and liquids in the vicinity of
this or any other appliance.
• Do not overfire. Overfiring will void your
warranty.
• Comply with all minimum clearances to
combustibles as specified. Failure to
comply may cause house fire.
WARNING
Fire Risk
• For use with solid wood fuel or decorative
gas appliance only.
• Do not install unvented gas logs.
WARNING

Heat & Glo LifeStyles Collection • Montana-42C • 4039-155 Rev D • 03/06
2
Read this manual before installing or operating this fireplace.
Please retain this owner’s manual for future reference.
Congratulations on selecting a Heat & Glo LifeStyles
Collection wood burning fireplace. The Heat & Glo LifeStyles
Collection fireplace you have selected is designed to provide
the utmost in safety, reliability and efficiency.
As the owner of a new fireplace, you’ll want to read and
carefully follow all of the instructions contained in this owner’s
manual. Pay special attention to all cautions and warnings.
This owner’s manual should be retained for future reference.
We suggest you keep it with your other important documents
and product manuals.
The information contained in this owner’s manual unless noted
otherwise, applies to all models and gas control systems.
Your new Heat & Glo LifeStyles Collection wood burning
fireplace will give you years of durable use and trouble-free
enjoyment. Welcome to the Heat & Glo LifeStyles Collection
family of fireplace products!
Homeowner Reference Information
Model Name: Date purchased/installed:
Serial Number: Location on fireplace:
Dealership purchased from: Dealer phone:
Notes:
We recommend that you record the following pertinent
information about your fireplace:
Listing Label Information/Location
The model information regarding your specific fireplace can be found on the rating plate located on the smoke shield of the
fireplace.
FIREPLACE NO.
MODEL NO.
MODEL NO.
MFG. DATE
WARNING: RISK OF
FIRE DAMAGE. REPLACE
GRATE WITH HEARTH & HOME
TECHNOLOGIES INC.
FIRECHAMBER INTENDED FOR USE WITH HEARTH & HOME TECHNOLOGIES INC. LISTED FIREPLACE PARTS. SEE INSTALLATION AND
OPERATING INSTRUCTIONS FOR THIS MODEL. ONLY HEARTH & HOME TECHNOLOGIES INC. GLASS DOOR KITS CAN BE INSTALLED ON THIS UNIT.
FIREPLACE ALSO FOR USE
IN MANUFACTURED HOMES
YES NO
CLEARANCE TO
COMBUSTIBLES:
CHIMNEY
2 IN. MIN.
FIREBOX
IN.
MIN.
FAN KIT
MODEL NO.
&RATED AT
115 VOLTS, 50/60 Hz., AMP.
DO NOT OVERFIRE. USE ONLY: SOLID WOOD FUEL OR
LISTED DECORATIVE GAS APPLIANCE. DO NOT USE A
FIREPLACE INSERT OR OTHER PRODUCTS NOT
SPECIFIED FOR USE WITH THIS PRODUCT. IF DOORS
ARE USED OPERATE FIREPLACE WITH DOORS FULLY
OPEN OR CLOSED ONLY. WHEN BURNING A
DECORATIVE GAS APPLIANCE IN THE FIREPLACE,
ADJUST DAMPER TO THE FULLY OPEN POSITION.
WARNING! THIS FIREPLACE HAS NOT BEEN TESTED WITH AN UNVENTED
GAS LOG SET. TO REDUCE THE RISK OF FIRE OR INJURY, DO NOT
INSTALL AN UNVENTED GAS LOG SET INTO FIREPLACE.
WARNING! THIS APPLIANCE IS NOT FOR USE AS COOKING EQUIPMENT.
IF INSTALLATION OR OPERATING INSTRUCTIONS ARE MISSING
CONTACT: HEARTH & HOME TECHNOLOGIES INC.,
1915 W. SAUNDERS ST., MT. PLEASANT, IA 52641.
Congratulations!
Grate Fireplace
Model
Serial
Number

Heat & Glo LifeStyles Collection • Montana-42C • 4039-155 Rev D • 03/06 3
Table of Contents
1 Listing and Code Approvals 4
A. Appliance Certification. . . . . . . . . . . . . . . . . . . . . . . . . 4
2 Getting Started 5
A. Design and Installation Considerations . . . . . . . . . . . . 5
B. Typical Fireplace System . . . . . . . . . . . . . . . . . . . . . . 6
C. Tools and Supplies Needed. . . . . . . . . . . . . . . . . . . . . 7
D. Inspect Fireplace and Components. . . . . . . . . . . . . . . 7
3 Framing and Clearances 8
A. Selecting Fireplace Location . . . . . . . . . . . . . . . . . . . . 8
B. Clearances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
C. Sidewalls/Surrounds . . . . . . . . . . . . . . . . . . . . . . . . . 11
D. Frame the Fireplace . . . . . . . . . . . . . . . . . . . . . . . . . 11
E. Chimney Requirements. . . . . . . . . . . . . . . . . . . . . . . 12
4 Installation of Fireplace 13
A. Install the Dual Cooling Air Kit . . . . . . . . . . . . . . . . . . 13
B. Secure the Fireplace . . . . . . . . . . . . . . . . . . . . . . . . . 14
5 Chimney Assembly 15
A. Chimney Requirements. . . . . . . . . . . . . . . . . . . . . . . 15
B. Using Offsets/Returns . . . . . . . . . . . . . . . . . . . . . . . . 16
C. Assemble the Chimney Sections. . . . . . . . . . . . . . . . 17
D. Install the Ceiling Firestops . . . . . . . . . . . . . . . . . . . . 17
E. Install the Attic Insulation Shield . . . . . . . . . . . . . . . . 18
F. Double-check the Chimney Assembly. . . . . . . . . . . . 18
G. Secure the Chimney . . . . . . . . . . . . . . . . . . . . . . . . . 18
6 Complete the Enclosure 19
A. Chimney Termination. . . . . . . . . . . . . . . . . . . . . . . . . 19
B. Chase Top . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
C. Install the Termination Cap . . . . . . . . . . . . . . . . . . . . 20
7 Accessories 22
A. Gas Log/Lighter Provisions . . . . . . . . . . . . . . . . . . . . 22
8 Finishing 23
A. Hearth Extension. . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
B. Finishing Material . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
C. Mantel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
D. Sidewalls/Surrounds . . . . . . . . . . . . . . . . . . . . . . . . . 24
E. Glass Doors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
9 Operating Instructions 25
A. General Information. . . . . . . . . . . . . . . . . . . . . . . . . . 25
B. Outside Air . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
C. Clear Space Near the Fireplace . . . . . . . . . . . . . . . . 26
D. Flue Damper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
E. Firescreen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
F. Glass Doors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
G. Grate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
H. Wood Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
I. Starting a Fire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
10 Troubleshooting 29
Diagnostics and Problem Solving . . . . . . . . . . . . . . . . . . 29
11 Maintenance and Servicing the Fireplace 30
A. Disposal of Ashes . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
B. Chimney Inspection/Cleaning . . . . . . . . . . . . . . . . . . 30
C. Firebox Refractory. . . . . . . . . . . . . . . . . . . . . . . . . . . 30
D. Maintenance Task List . . . . . . . . . . . . . . . . . . . . . . . . 31
E. Chimney Fire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
12 Reference Materials 32
A. Fireplace Dimensions . . . . . . . . . . . . . . . . . . . . . . . . 32
B. Fireplace Components . . . . . . . . . . . . . . . . . . . . . . . 33
C. Chimney Components. . . . . . . . . . . . . . . . . . . . . . . . 34
D. Service Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
E. Limited Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
F. Contact Information . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Note: An arrow () found in the text signifies change in content.

Heat & Glo LifeStyles Collection • Montana-42C • 4039-155 Rev D • 03/06
4
1
1 Listing and Code Approvals
A. Appliance Certification
This fireplace system has been tested and listed in accor-
dance with UL 127 standard by Underwriters Laboratories
Inc. for installation and operation in the United States.
This fireplace has been tested and listed for use with the op-
tional components specified in this manual. These optional
components may be purchased separately and installed at
a later date.
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.
Heat & Glo LifeStyles Collection is a registered trademark of
Hearth & Home Technologies Inc.
Not intended for use as a primary heat source.
This fireplace is tested and approved as a decorative
fireplace. It should not be factored as a primary heat
source in residential heating calculations.
Improper installation, adjustment, alteration, service
or maintenance can cause injury or property damage.
Refer to the owner’s information manual provided with
this fireplace. For assistance or additional information
consult a qualified installer, service agency or your
dealer.
WARNING
Fire Risk
• Do not install or operate damaged fireplace.
• Do not modify fireplace.
• Installation other than as instructed by Hearth & Home
Technologies Inc. is strictly prohibited.
• Do not operate the fireplace without fully assembling
all components.
• Do not overfire.
•Do not install an unvented gas log set. This fireplace
has not been tested for use with unvented gas log
sets.
• Installation and/or use of any component part not
approved by Hearth & Home Technologies.
Hearth & Home Technologies disclaims any responsibility
for, and the warranty and agency listing will be voided by
the above actions.
WARNING

Heat & Glo LifeStyles Collection • Montana-42C • 4039-155 Rev D • 03/06 5
2
Getting Started
A. Design and Installation Considerations
Draft is the pressure difference needed to vent fireplaces
successfully. Considerations for successful draft include:
• Location of fireplace and chimney
Check building codes prior to installation.
• Installation MUST comply with local, regional,
state and national codes and regulations.
• Consult insurance carrier, local building inspector,
fire officials or authorities having jurisdiction about
restrictions, installation inspection, and permits.
CAUTION
When planning a fireplace installation, it is necessary to de-
termine the following information before installing:
• Where the fireplace is to be installed. See Sections
3 and 4.
• The vent system configuration to be used. See Sections
5 and 6.
• Framing and finishing details. See Sections 3, 6 and 8.
• Whether optional accessories are desired. See
Section 12.

Heat & Glo LifeStyles Collection • Montana-42C • 4039-155 Rev D • 03/06
6
B. Typical Fireplace System
The Heat & Glo fireplace system consists of the following:
• Fireplace/integral grate/dual cooling air system
• Refractory
• Chimney termination cap
• Chimney system
• Hearth extension
Figure 2.2 Typical Fireplace System
Optional components include:
• Glass doors
• Weather cover
Termination Cap
Chimney System
Refractory
Integral Grate
Hearth Extension
Figure 2.1 Typical Fireplace System

Heat & Glo LifeStyles Collection • Montana-42C • 4039-155 Rev D • 03/06 7
Before beginning the installation be sure the following tools
and building supplies are available:
Reciprocating saw Framing material
Pliers High temp caulking material
Hammer Gloves
Phillips screwdriver Framing square
Flat blade screwdriver Electric drill and bits
Plumb line Safety glasses
Level Tape measure
1/2-3/4 in. length, #6 or #8 self-drilling screws
Misc. screws and nails
• Keep fireplace dry.
• Mold or rust may cause odors.
CAUTION
D. Inspect Fireplace and Components
• Carefully remove the fireplace and components from the
packaging.
• The vent system components and doors are shipped in
separate packages.
• Report to your dealer any parts damaged in shipment.
• Read all the instructions before starting the installation.
Follow these instructions carefully during the
installation to ensure maximum safety and benefit.
Fire Risk
Explosion Risk
Inspect fireplace and components for
damage. Damaged parts may impair safe
operation.
• Do NOT install damaged components.
• Do NOT install incomplete components.
• Do NOT install substitute components
Report damaged parts to dealer.
WARNING
C. Tools and Supplies Needed

Heat & Glo LifeStyles Collection • Montana-42C • 4039-155 Rev D • 03/06
8
3
Framing and Clearances
A. Selecting Fireplace Location
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. Figures 3.1
and 3.2 show typical installations.
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 pre-
vent impact damage to the fireplace. However, the enclo-
sure 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.
Fire Risk
Provide adequate clearances.
• Around air openings
• To combustibles
• For service access.
Locate fireplace away from traffic areas.
WARNING Note:
• Illustrations and photos reflect typical installations
and are FOR DESIGN PURPOSES ONLY.
•Illustrations/diagrams are not drawn to scale.
•Actual installation/appearance may vary due to
individual design preference.
• Hearth & Home Technologies reserves the right to
alter its products.

Heat & Glo LifeStyles Collection • Montana-42C • 4039-155 Rev D • 03/06 9
B
A
H
F
Note: If this surface is
inside the building’s
warm air envelope... ...then this surface
must be an exterior
wall system.
C
D
G
G
C
D
H
G
F
J
I
E
Figure 3.1 Fireplace Locations
FREESTANDING
INSTALLATION
(Combustible Structure)
(Enclosed Fireplace)
10 ft
Min.
Figure 3.2 Freestanding Fireplace Locations
Model A B C D E F G H I J
MONTANA-42C in. 24-1/2 24 48 49 52 1/2 1-1/2 1-1/2 80-1/2 57
mm 622 610 1219 1245 1321 13 38 38 2045 1448

Heat & Glo LifeStyles Collection • Montana-42C • 4039-155 Rev D • 03/06
10
0 in.
0 in. to level
of standoffs
Combustible Object
36 in.
(914 mm)
1-1/2 in. (38 mm)
Drywall
0 in.
1/2 in. (13 mm)
1-1/2 in.
(38 mm)
B. Clearances
Figure 3.3 Clearances to Combustible Materials
Fire Risk
• Comply with all minimum clearances to
combustibles as specified.
Failure to comply may cause fire.
WARNING

Heat & Glo LifeStyles Collection • Montana-42C • 4039-155 Rev D • 03/06 11
Note: Fireplace header
cannot be positioned until
the fireplace assembly is
in place.
2 in. minimum air
space clearance
to the enclosure.
42-3/8 in.
49 in.
42-3/8 in. header height.
Use only noncombustible
material below the top of
the top standoffs.
24-1/8 in.
C. Sidewalls/Surrounds
Adjacent combustible side walls must be located a minimum of 12 in. (305 mm) from the fireplace opening. See Figure 3.4.
If you are using a decorative surround constructed of combustible material, it must be located within the shaded area de-
fined in Figure 3.3. Short stub walls are also acceptable if they are contained within the shaded area.
D. Frame the Fireplace
Figure 3.5 shows a typical framing (using 2 x 4 lumber) of the fireplace, assuming combustible materials are used. All re-
quired clearances to combustibles around the fireplace must be adhered to. See Figure 3.2. Any framing across the top of
the fireplace must be above the level of the top standoffs.
14-3/8 in.
12 in.
39 deg.
4 in.
BRICK
FRONT
FLUSH FRONT
12 in.
9-3/4 in.
50 deg.
A
B
Cat # A B
MONTANA-42C 42 in. 48 in.
Figure 3.4 Sidewalls and Surrounds
Figure 3.5 Framing the Fireplace

Heat & Glo LifeStyles Collection • Montana-42C • 4039-155 Rev D • 03/06
12
E. Chimney Requirements
When planning your fireplace location, the chimney construc-
tion and necessary clearances must be considered. The fire-
place 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.
Note: A maximum of two pairs of offsets and returns may
be used.
ft m
• Minimum overall straight height 14 4.27
• Minimum height with offset/return 16 4.88
• Maximum height 90 27.43
• Maximum chimney length between an offset
and return
20 6.1
• Maximum distance between chimney stabiliz-
ers
35 10.67
• Double offset/return minimum height 24 7.32
• Maximum unsupported chimney length be-
tween the offset and return
61.83
• Maximum unsupported chimney height above
the fireplace
35 10.67
• Minimum overall straight height if fireplace is
freestanding
6.33 1.93

Heat & Glo LifeStyles Collection • Montana-42C • 4039-155 Rev D • 03/06 13
72 in.
min.
TR11
Termination
Cap
A. Install the Dual Cooling Air Kit
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 in-
let tubes must be a minimum of 72 in. (1829 mm) above the
base of the fireplace to prevent potential blockage by snow
or yard debris. See Figure 4.1.
To install the air kit collar, slide one of the tabs down into the
seam. See Figure 4.2. Secure the collar tabs to the fireplace
with screws placed into the holes provided. See Figure 4.3.
Repeat for other side.
Sharp Edges
• Wear protective gloves and safety glasses
during installation.
CAUTION
4
4 Installation of Fireplace
Fire Risk
Asphyxiation Risk
Do not draw outside combustion air from:
• Wall, floor or ceiling cavity.
• Enclosed space such as an attic or
garage.
• Close proximity to exhaust vents or
chimneys.
Fumes or odor may result.
WARNING
Figure 4.1 Cooling Air Location
Figure 4.2 Slide the Tabs
Figure 4.3 Secure the Tabs
Note: The cooling air kit must terminate at least 6 ft. (1.83 m)
above ground level.

Heat & Glo LifeStyles Collection • Montana-42C • 4039-155 Rev D • 03/06
14
B. Secure the Fireplace
• Position the Fireplace
This fireplace may be placed on either a combustible or
noncombustible continuous flat surface. Follow the in-
structions for framing in Section 3.D. Slide the fireplace
into position. Be sure to provide the minimum air clear-
ance at the sides and back of the fireplace assembly.
See Section 3.B.
Included with your fireplace you will find two metal
hearth strips measuring approximately 26 in. x 4 in.
(660 mm x 102 mm). These strips are used to provide
added protection where the fireplace and the hearth ex-
tension meet.
Slide each metal strip 2 in. (51 mm) under the front
edge of the fireplace. The individual pieces must over-
lap each other by 1 in. (25 mm) minimum in the middle
of the fireplace to provide continuous coverage of the
floor. See Figure 4.4. These metal strips should extend
from the front and sides of the fireplace opening by 2 in.
(51 mm).
Note: When elevating the fireplace above the hearth
extension the front of the elevated platform must be
protected with a protective metal hearth strip as shown in
Figure 4.6.
Raised Platform
Floor
2 in.
(51 mm)
1 in. (25 mm) min.
overlap
2 in.
(51 mm)
Top piece must overlap
bottom piece
Figure 4.5 Protect the Front of an Elevated Platform
• 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 flang-
es 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, continue to shim the fireplace until those
diagonals are equal.
1 in. (25 mm) overlap
Metal strips are placed 2 in. (51 mm) under the front
of the fireplace and must extend beyond the front
and sides of fireplace opening by 2 in. (51 mm).
Figure 4.4 Position the Protective Metal Hearth Strips
• Place the Protective Metal Hearth Strips
Fire Risk!
• Prevent contact with sagging, loose
insulation.
• Do NOT install against vapor barriers or
exposed insulation.
WARNING
Fire Risk!
• Metal hearth strips MUST be installed.
Sparks or embers may ignite flooring.
WARNING

Heat & Glo LifeStyles Collection • Montana-42C • 4039-155 Rev D • 03/06 15
A. Chimney Requirements
Vertical distances are measured from the base of the fire-
place as shown in Figure 5.2.
To determine the chimney components needed to complete
your particular installation, follow the steps below:
• 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.
• 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).
• Refer to Table 5.1 to determine what components must
be selected to complete the fireplace installation.
• Determine the number of ceiling firestops, stabilizers,
roof flashing, etc. required to complete the fireplace
installation.
Table 5.1
• Do NOT connect this fireplace to a chimney flue
servicing another appliance.
• Do NOT connect to any air distribution duct or
system.
CAUTION
Fire Risk
• Must maintain 2 in. (51 mm) air clearance
to insulation and other combustible
materials.
WARNING
Note: A maximum of two pairs of offsets and returns may
be used.
5
5 Chimney Assembly
HEIGHT OF CHIMNEY COMPONENTS in. mm
Chimney Stabilizer
SL4 4-3/4 121
Ceiling Firestops
FS538 0 0
FS540 0 0
Offsets/Returns
SL430 14-1/2 368
Roof Flashing
RF570 0 0
RF571 0 0
Chimney Sections*
SL406 4-3/4 121
SL412 10-3/4 273
SL418 16-3/4 425
SL436 34-3/4 883
SL448 46-3/4 1187
* Dimensions reflect effective height.
ft m
• Minimum overall straight height 14 4.27
• Minimum height with offset/return 16 4.88
• Maximum height 90 27.43
• Maximum chimney length between an offset
and return
20 6.1
• Maximum distance between chimney
stabilizers
35 10.67
• Double offset/return minimum height 24 7.32
• Maximum unsupported chimney length
between the offset and return
61.83
• Maximum unsupported chimney height above
the fireplace
35 10.67
• Minimum overall straight height if fireplace is
freestanding
6.33 1.93

Heat & Glo LifeStyles Collection • Montana-42C • 4039-155 Rev D • 03/06
16
B. Using Offsets/Returns
To bypass any overhead obstructions, the chimney may be
offset using a 30-deg (SL1130) offset/return.
An offset and return may be attached together or a chimney
section(s) may be used between an offset and return.
Perform the following steps to determine the correct chim-
ney component combination for your particular installation:
• Measure how far the chimney needs to be shifted to enable
it to avoid the overhead obstacle. See Figure 5.1. Use
dimension “A” to determine chimney section required to
achieve the needed shift.
• After determining the offset dimension, refer to Table 5.2
and find the “A” dimension closest to but not less than the
distance of shift needed for your installation.
• The “B” dimension that coincides with the “A” dimension
represents the required vertical clearance that is needed
to complete the offset and return.
• Read across the chart and find the number of chimney
sections required and the model number of those particular
chimney parts.
• Whenever the chimney penetrates a floor/ceiling, a ceiling
firestop must be installed.
• The effective height of the fireplace assembly is measured
from the base of the fireplace to the top of the starter collar.
See Dimensions in Section 12.
Table 5.2
A
B
1-1/4 in. (32 mm)
OVERLAP
Figure 5.1 Chimney Offset/Return
Example: Your “A” dimension from Figure
5.3 is 14-1/2 in. (368 mm). Using Table 5.2
the dimension closest to, but not less than
14-1/2 in. (368 mm) is 14-5/8 in. (371
mm) using a 30° offset/return. It is then
determined from the table that you would
need 33 in. (838 mm) (Dimension “B”)
between the offset and return. The chimney
components that best fit your application are
two SL412s.
Fire Risk
• Draft will be restricted if offsets/returns
greater than 30° are used.
WARNING
AB
SL406 SL412 SL418 SL436 SL448in. mm in. mm
3-7/8 98 14-1/2 368 -----
6-1/4 159 18-5/8 473 1 - - - -
9-1/4 235 23-3/4 603 - 1 - - -
12-1/4 311 29 737 - - 1 - -
14-5/8 371 33 838 - 2 - - -
17-5/8 448 38-1/4 972 - 1 1 - -
21-1/4 540 44-5/8 1133 - - - 1 -
23-5/8 600 48-3/4 1238 1 - - 1 -
27-1/4 692 55-3/4 1416 ----1
29-5/8 752 59 1499 1 - - - 1
32-5/8 829 64-1/4 1632 - 1 - - 1
35-5/8 905 69-1/2 1765 - - 1 - 1
38 965 73-5/8 1870 - 2 - - 1
41 1041 78-3/4 2000 - 1 1 - 1
44-5/8 1133 85 2159 - - - 1 1
47 1194 89-1/8 2264 1 - - 1 1
50-5/8 1286 95-1/2 2426 ----2
Proper assembly of air cooled chimney parts results in an overlap of chimney joints of
1-1/4 in. (32 mm). Effective length is built into this table.

Heat & Glo LifeStyles Collection • Montana-42C • 4039-155 Rev D • 03/06 17
C. Assemble the Chimney Sections
Attach either a straight chimney section or an offset to the
top of the fireplace (depending on your installation require-
ment). 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 5.2.
D. Install the Ceiling Firestops
• Mark and cut an opening in the ceiling for the ceiling
firestop being used. See Figure 5.3.
• Frame the opening with the same size lumber used in the
ceiling joists.
• Install the ceiling firestop.
Note: The ceiling firestop MUST be nailed to the bottom
of the ceiling joists EXCEPT when the space above is
uninsulated and the attic insulation shield is not being used
(see Figure 5.5). When the attic insulation shield is used
the ceiling firestop may be above or below the joist of an
insulated ceiling.
Note: You must provide support for the pipe during
construction and check to be sure inadvertent loading has
not dislodged the chimney section from the fireplace or at
any chimney joint.
Note: 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 components.
• Ceiling firestops must be used at ceiling/floor.
• Chase construction requires ceiling firestops at each
floor or every 10 ft ( 3.05 m) of clear space.
• Use same dimensional lumber as joists.
Ceiling firestop slows spread of fire and reduces cold air
infiltration.
CAUTION
Figure 5.2 Assembling Chimney Sections
Fire Risk
Do NOT install substitute or damaged
chimney components.
• MUST use chimney system described in
this manual.
• NO OTHER chimney components may
be used.
Substitute or damaged chimney components
may impair safe operation.
WARNING
ROOM ABOVE (non-insulated ceiling)
ATTIC ABOVE (insulated ceiling)
B
A
Ceilng firestop from
bottom
Ceiling firestop from
top
When attic insulation
shield not used
Note: Use same dimensional lumber for framing
ceiling firestop and joists.
Figure 5.3 Installing the Ceiling Firestop
Catalog # A B
FS538 0-deg. 17 in. 432 mm
FS540 30-deg. 26 in. 660 mm

Heat & Glo LifeStyles Collection • Montana-42C • 4039-155 Rev D • 03/06
18
E. Install the Attic Insulation Shield
An insulation shield must be installed when there is a pos-
sibility of insulation coming into contact with the factory built
chimney system.
• Bend the tabs at the top of the attic insulation shield inward.
This will help keep the chimney section centered in the
shield.
• Position the shield over the vertical chimney section where
it penetrates a ceiling firestop.
• Slide the shield down until it rests on the ceiling firestop.
The ceiling firestop will support the insulation shield. See
Figures 5.4 and 5.5.
F. Double-check the Chimney Assembly
Continue assembling the chimney sections up through the
ceiling firestops as needed. While doing so, be aware of the
height and unsupported chimney length limitations given un-
der Section 5.A. Chimney Requirements.
Check each section by pulling up slightly from the top to en-
sure proper engagement before installing the succeeding
sections. If they have been connected correctly, they will not
disengage when tested.
G. Secure the Chimney
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 hanger straps for securing these
parts to joists or rafters. See Figure 5.6.
* or equivalent #6 or #8 sheet metal screw no longer than
3/4 in. (19 mm).
24 in.
(610 mm) Attic
Insulation
Shield
Chimney
Insulation
13 in.
(330 mm)
17 in.
(423 mm)
Ceiling Firestop
Tabs
Figure 5.4 Install Attic Insulation Shield Above the Ceiling
Attic
Insulation
Shield
Chimney
Insulation
Ceiling Firestop
Tabs
24 in.
(610 mm)
13 in.
(330 mm)
17 in.
(423 mm)
Figure 5.5 Install Attic Insulation Shield Below the Ceiling
Ceiling
Firestop
Straps
Optional
Additional
Support
Joint
Band
(Optional)
Figure 5.6 Secure the Chimney
Fire Risk
• DO NOT pack insulation or other
combustibles: between ceiling firestops;
between chimney and attic insulation
shield.
• ALWAYS maintain specified clearances
around chimney and ceiling firestops.
• Install ceiling firestops as specified.
Failure to keep insulation or other material
away from chimney pipe may cause fire.
WARNING
Fire Risk
• Secure offsets with screws (not to exceed
3/4 in./19 mm in length).
WARNING
• Secure returns with strapping.
• Straight chimney sections may be secured with screws
(not to exceed 3/4 in./19 mm in length) at the joints.
Keep chimney sections from separating or twisting.

Heat & Glo LifeStyles Collection • Montana-42C • 4039-155 Rev D • 03/06 19
Figure 6.1 Ceiling/Attic Construction
Fire Risk
• Must maintain 2 in. air (51 mm) clearance
to insulation and other combustible
materials.
WARNING
6
6 Complete the Enclosure
A. Chimney Termination
Chimney Termination Requirements
• Must have a cap approved and listed for this fireplace
system
• Must not be located where it will become plugged by snow
or other material
• Must terminate at least 3 ft (914 mm) above the roof and
at least 2 ft (610 mm) above any portion of the roof within
10 ft (3.05 m),
• Must be located away from trees or other structures
Mark the Exit Point of the Roof
Locate the point where the chimney will exit the roof by
plumbing down to the center of the chimney. Drive a nail
up through the roof to mark the center. See Figure 6.1.
Cut Out the Hole in the Roof
Measure to either side of the nail and mark the 14-1/2 in.
x 14-1/2 in. (368 mm x 368 mm) opening required. This
is measured on the horizontal; actual length may be larg-
er depending on the pitch of the roof. Cut out and frame
the opening. See Chapter 25 of the Uniform Building
Code for roof framing details.
Assemble the Chimney Sections Through the
Roof
Continue to add chimney sections through the roof open-
ing, maintaining at least a 2 in. (51 mm) air space to com-
bustible materials.
Install the Roof Flashing
If a roof flashing is to be used, install the roof flashing
appropriate to the roof pitch and install a round termination
cap and storm collar following the instructions shipped with
the cap.
Install the Chimney Air Kit (required in Canada):
When installing the chimney air kit, follow the instructions
provided with this accessory.

Heat & Glo LifeStyles Collection • Montana-42C • 4039-155 Rev D • 03/06
20
Termination Cap
Storm Collar
Slope Downward
Turn-down
Drip Edge
Chase
(Chimney)
2 in. (51 mm) Collar
on Chase Top
Caulk
.018 (26 ga) min.
Galvanized
Chase Top
Figure 6.2 Chase Top Construction
2 in. (51 mm) min. collar
6 in. (152mm) min.
2 in. (51 mm) min.
Storm Collar
Flashing Collar
Minimum 1-1/2 in. (38 mm) overlap of cap over pipe
Figure 6.3 Installing a TR444 Round Termination Cap
Storm Collar
Flashing Collar
Top of Pipe
14-1/2 in. (368mm) max.
1-1/2 in. (38 mm) min.
overlap
2 in. (51 mm) min.
Figure 6.4 Installing a TR442 Round Telescoping Termination Cap
Note: To protect against the effect of corrosion on those
parts exposed to the weather, the termination cap can be
painted with a rust-resistant paint.
Fire Risk
• The minimum overlap of cap to pipe
MUST be met or chimney may separate
from cap.
Separation allows sparks, heat and embers
to escape.
WARNING
C. Install the Termination Cap
•For installations utilizing a TR442 Round Telescoping
Termination Cap, the uppermost chimney section must be
below the top of the chase top, but not more than 14-1/2 in.
(368 mm) below the top of the chase top. Minimum overlap
of chimney and termination cap must be 1-1/2 in. (38 mm).
See Figure 6.4.
•Install the chimney sections up through the chase
enclosure. When using a TR444 Round Termination
Cap, the uppermost top section of pipe must extend 6 in.
(152 mm) above the top of the flashing collar to allow
installation of the storm collar and termination cap. See
Figure 6.3.
B. Chase Top
A metal chase top is required to seal the top of the chase
around the chimney pipe. The top should include a turn-
down and drip edge to prevent water from seeping into the
chase. Provide a 1/8 in. (3 mm) gap around the flue pipe
and slope the top downward away from the penetration. See
Figure 6.2.
• All seams must be caulked to prevent leaks.
• A chase installation must use a chase top. Chase tops
are available from your Heat & Glo dealer or may be field
constructed.
• Attach the chase top to the top of the chase.