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Heat & Glo • EM-42 • 28324 Rev U • 02/07 1
Owner’s Manual
Installation and Operation
Models:
EM-42
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 ¿ replace should
be performed by quali¿ ed personnel. Hearth
& Home Technologies suggests NFI certi¿ ed
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 ¿ replace.
• 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.
Fire Risk
• For use with solid wood fuel or decorative
gas appliance only.
• Do not install unvented gas logs.
WARNING
If the information in these instruc-
tions is not followed exactly, a
¿ re may result causing property
damage, personal injury, or death.
• Do not store or use gasoline or other À am-
mable vapors and liquids in the vicinity of
this or any other appliance.
• Do not over¿ re. Over¿ ring will void your
warranty.
• Comply with all minimum clearances to
combustibles as speci¿ ed. Failure to
comply may cause house ¿ re.
WARNING
Heat & Glo • EM-42 • 28324 Rev U • 02/07
2
Read this manual before installing or operating this ¿ replace.
Please retain this owner’s manual for future reference.
Congratulations on selecting a Heat & Glo wood burning ¿ re-
place. The Heat & Glo ¿ replace you have selected is designed
to provide the utmost in safety, reliability and ef¿ ciency.
As the owner of a new ¿ replace, you’ll want to read and care-
fully 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 wood burning ¿ replace will give you
years of durable use and trouble-free enjoyment. Welcome
to the Heat & Glo family of ¿ replace products!
Homeowner Reference Information
Model Name: Date purchased/installed:
Serial Number: Location on ¿ replace:
Dealership purchased from: Dealer phone:
Notes:
We recommend that you record the following pertinent
information about your ¿ replace:
Listing Label Information/Location
The model information regarding your speci¿ c ¿ replace can be found on the rating plate located on the smoke shield of the
¿ replace.
Congratulations!
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.
Grate Fireplace
Model
Serial
Number
Heat & Glo • EM-42 • 28324 Rev U • 02/07 3
Table of Contents
1 Listing and Code Approvals 4
A. Appliance Certi¿ cation . . . . . . . . . . . . . . . . . . . . . . . . .4
2 Getting Started 5
A. Design and Installation Considerations . . . . . . . . . . . .5
B. Negative Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
C. Typical Fireplace System . . . . . . . . . . . . . . . . . . . . . . .7
D. Tools and Supplies Needed . . . . . . . . . . . . . . . . . . . . .8
E. Inspect Fireplace and Components . . . . . . . . . . . . . . .8
3 Framing and Clearances 9
A. Selecting Fireplace Location . . . . . . . . . . . . . . . . . . . .9
B. Clearances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
C. Sidewalls/Surrounds . . . . . . . . . . . . . . . . . . . . . . . . . 11
D. Frame the Fireplace . . . . . . . . . . . . . . . . . . . . . . . . . . 11
E. Construct the Chase . . . . . . . . . . . . . . . . . . . . . . . . .12
F. Chimney Requirements . . . . . . . . . . . . . . . . . . . . . . .12
4 Installation of Fireplace 13
A. Install the Outside Air Kit . . . . . . . . . . . . . . . . . . . . . .13
B. Secure the Fireplace . . . . . . . . . . . . . . . . . . . . . . . . .15
5 Chimney Assembly 16
A. Chimney Requirements . . . . . . . . . . . . . . . . . . . . . . .17
B. Using Offsets/Returns . . . . . . . . . . . . . . . . . . . . . . . .18
C. Assemble the Chimney Sections . . . . . . . . . . . . . . . .19
D. Install the Ceiling Firestop . . . . . . . . . . . . . . . . . . . . .19
E. Install the Attic Insulation Shield . . . . . . . . . . . . . . . .20
F. Double-check the Chimney Assembly . . . . . . . . . . . .20
G. Secure the Chimney . . . . . . . . . . . . . . . . . . . . . . . . .20
6 Complete the Enclosure 21
A. Chimney Termination . . . . . . . . . . . . . . . . . . . . . . . . .21
B. Chase Top . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
C. Install the Termination Cap . . . . . . . . . . . . . . . . . . . .22
7 Accessories 24
A. Side Brick Installation. . . . . . . . . . . . . . . . . . . . . . . . .24
B. Gas Log/Lighter Provisions . . . . . . . . . . . . . . . . . . . .24
C. Installation of Fan. . . . . . . . . . . . . . . . . . . . . . . . . . . .25
8 Finishing 26
A. Hearth Extension . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
B. Finishing Material . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
C. Mantel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
D. Sidewalls/Surrounds . . . . . . . . . . . . . . . . . . . . . . . . .27
E. Glass Doors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
9 Operating Instructions 28
A. General Information . . . . . . . . . . . . . . . . . . . . . . . . . .28
B. Outside Air . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
C. Clear Space Near the Fireplace. . . . . . . . . . . . . . . . .29
D. Flue Damper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
E. Firescreen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
F. Glass Doors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
G. Grate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
H. Wood Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
I. Starting a Fire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
10 Troubleshooting 32
A. Understanding Vent Problems . . . . . . . . . . . . . . . . . .32
B. Diagnostics and Problem Solving . . . . . . . . . . . . . . .33
11 Maintenance and Servicing the Fireplace 35
A. Disposal of Ashes . . . . . . . . . . . . . . . . . . . . . . . . . . .35
B. Chimney Inspection/Cleaning . . . . . . . . . . . . . . . . . .35
C. Firebox Refractory . . . . . . . . . . . . . . . . . . . . . . . . . . .35
D. Maintenance Task List . . . . . . . . . . . . . . . . . . . . . . . .36
E. Chimney Fire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
12 Reference Materials 37
A. Fireplace Dimensions . . . . . . . . . . . . . . . . . . . . . . . .37
B. Fireplace Components . . . . . . . . . . . . . . . . . . . . . . . .38
D. Service Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
E. Limited Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . .47
F. Contact Information . . . . . . . . . . . . . . . . . . . . . . . . . .48
Note: An arrow (¨) found in the text signi¿ es change in content.
Heat & Glo • EM-42 • 28324 Rev U • 02/07
4
1
1 Listing and Code Approvals
A. Appliance Certi¿ cation
This ¿ replace system has been tested and listed in accor-
dance with UL 127 and ULC-S610 standards by Underwrit-
ers Laboratories Inc. for installation and operation in the
United States and Canada.
This ¿ replace has been tested and listed for use with the op-
tional components speci¿ ed in this manual. These optional
components may be purchased separately and installed at
a later date. Installation of an outside air kit will require sig-
ni¿ cant reconstruction and is best if installed at the time of
¿ replace installation.
Heat & Glo is a registered trademark of Hearth & Home
Technologies Inc.
Not intended for use as a primary heat source.
This ¿ replace is tested and approved as a decorative ¿ re-
place. 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 ¿ replace. For assistance or additional information
consult a quali¿ ed installer, service agency or your
dealer.
WARNING
Fire Risk
• Do not install or operate damaged ¿ replace.
• Do not modify ¿ replace.
• Installation other than as instructed by Hearth & Home
Technologies Inc. is strictly prohibited.
• Do not operate the ¿ replace without fully assembling
all components.
• Do not over¿ re.
• Do not install an unvented gas log set. This ¿ replace
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 • EM-42 • 28324 Rev U • 02/07 5
2
2 Getting Started
A. Design and Installation Considerations
Draft is the pressure difference needed to vent ¿ replaces
successfully. Considerations for successful draft include:
• Preventing negative pressure
• Location of ¿ replace and chimney
B. Negative Pressure
Negative pressure results from the imbalance of air avail-
able for the ¿ replace to operate properly. Causes for this
imbalance include:
• Exhaust fans (kitchen, bath, etc.).
• Range hoods.
• Combustion air requirements for furnaces, water heaters
and other combustion appliances.
• Clothes dryers.
• Location of return-air vents to furnace or air
conditioning.
• Imbalances of the HVAC air handling system.
• Upper level air leaks: recessed lighting, attic hatch
opening, duct leaks.
To minimize the effects of negative air pressure, the follow-
ing must be considered:
• Install the outside air kit. Install the intake on the side of
the house towards prevailing winds during the heating
season.
• Ensure adequate outdoor air is supplied for combustion
appliances and exhaust equipment.
• Ensure furnace and air conditioning return vents are not
located in the immediate vicinity of the ¿ replace.
• Avoid installing the ¿ replace near doors, walkways or small
isolated spaces.
• Recessed lighting should be a “sealed can” design; attic
hatches weather stripped or sealed; attic mounted duct
work and air handler joints and seams taped or sealed.
• Basement installations should be avoided due to stack
effect. Stack effect creates negative pressure in lower
levels. Hearth & Home Technologies recommends the
use of direct vent ¿ replaces in basements.
Asphyxiation Risk
Negative pressure can cause spillage of
combustion fumes and soot. Fire needs to draft
properly for safe operation.
WARNING
Check building codes prior to installation.
• Installation MUST comply with local, regional,
state and national codes and regulations.
• Consult insurance carrier, local building inspector,
¿ re of¿ cials or authorities having jurisdiction about
restrictions, installation inspection and permits.
CAUTION
When planning a ¿ replace 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 con¿ guration to be used. See Sections
5 and 6.
• Gas supply piping. See Section 7.
• Electrical wiring. See Section 7.
• Framing and ¿ nishing details. See Sections 3, 6 and 8.
• Whether optional accessories—devices such as a fan, wall
switch or remote control —are desired. See Section 12.
Heat & Glo • EM-42 • 28324 Rev U • 02/07
6
Location of the ¿ replace and chimney will affect performance.
As shown in Figure 2.1 the chimney should:
• Be installed through the warm airspace enclosed by the
building envelope. This helps to produce more draft,
especially during lighting and die-down of the ¿ re.
• Penetrate the highest part of the roof. This minimizes the
effects of wind turbulence.
• Be located away from trees, adjacent structures, uneven
roof lines and other obstructions.
Offsets can restrict draft so their use should be minimized.
Consider the ¿ replace location relative to À oor and ceiling
and attic joists.
Recommended
Location
Marginal
Location
Location
Not
Recommended
Recommended
Location
Multi-level Roofs
Windward
Leeward
Outside Air Intake
Location
Not
Recommended
Figure 2.1 Recommended Chimney Locations
Heat & Glo • EM-42 • 28324 Rev U • 02/07 7
C. Typical Fireplace System
The Heat & Glo ¿ replace system consists of the following:
• Fireplace/integral grate/refractory/outside air system
• Chimney termination cap
• Chimney system
• Hearth extension
Non-combustible
roof flashing maintains
minimum clearance
around chimney
Additional lateral
support for chimney
above roof (or enclosed
in chase) if needed
Ceiling firestop
on floor of attic
Support straps
on rafter supports
chimney (not shown)
Termination cap
Chimney penetrates roof
preferably without affecting
roof rafters
Offset/Return (with hanger straps)
Framing headed off
in ceiling joists
Enclosed space above
and around fireplace
Mantel and surround
Decorative facing
and trim
Hearth extension
Factory-built fireplace
Protective metal
hearth strip(s)
Outside
combustion air
Combustible
framing/header
on top of
V-shaped
standoffs
(spacers)
Chimney system
Attic insulation shield (not shown) must
be used here to keep insulation away
from chimney if attic is insulated
Storm Collar
Figure 2.2 Typical Fireplace System
Note:
Junction box should be installed during initial
setup to avoid major reconstruction.
Optional components include:
• Glass doors
• Chimney air kit
• Fan kit (circulating ¿ replaces only)
• Junction box (circulating ¿ replaces only)
Heat & Glo • EM-42 • 28324 Rev U • 02/07
8
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 ¿ replace dry.
• Mold or rust may cause odors.
CAUTION
E. Inspect Fireplace and Components
• Carefully remove the ¿ replace 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 bene¿ t.
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
D. Tools and Supplies Needed
Heat & Glo • EM-42 • 28324 Rev U • 02/07 9
3
3 Framing and Clearances
A. Selecting Fireplace Location
Several options are available to you when choosing a loca-
tion for your ¿ replace. This ¿ replace may be used as a room
divider, installed along a wall, across a corner or used in an
exterior chase. See Figure 3.1.
A
F
D
BC
5/8 in. (16 mm) all
configurations
1/2 in. (13 mm) min.
distance from fireplace
to combustible materials.
Note:
In an exterior chase
or projecting into a
garage
Across a
corner
As a
room
divider
Along a wall
A
25-5/8 in.
(651 mm)
E
Note: In addition to these
framing dimensions,
also reference the
following sections:
• Clearances (Section
3.B.)
• Mantel Projections
(Section 8.C)
• Fireplace Dimensions
(Section 12.A.)
48 in.
(1219 mm)
12 in.
(305 mm)
B
25-5/8 in.
(651 mm)
B
25-5/8 in.
(651 mm)
A
B
Figure 3.1 Fireplace Locations
Fire Risk
Provide adequate clearances.
• Around air openings
• To combustibles
• For service access.
Locate ¿ replace away from traf¿ c areas.
WARNING Note:
• Illustrations and photos reÀ ect 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.
Locating the ¿ replace 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 ¿ re-
place. Consideration should be given to these factors before
deciding on a location. See Sections 2 and 10.
Model # A B C D E F
EM-42 in. 53-1/4 43-1/4 93-3/8 47 24-1/4 66
mm 1353 1099 2372 1194 616 1676
Heat & Glo • EM-42 • 28324 Rev U • 02/07
10
B. Clearances
2 in. (51 mm) min.
0 in. to level
of standoffs
Attic
Insulation
Shield
Ceiling Firestop
(ceiling)
(roof)
(attic)
(ceiling)
Ceiling Firestop Offset/Return with
hanger straps
Storm Collar
Roof Flashing
1/2 in. (13 mm) to side of appliance
1/2 in. (13 mm) to back
of appliance
2 in. (51 mm) min.
2 in. min.
(51 mm)
Must have 2 in. (51 mm)
minimum clearance
to header
0 in.
to floor
2 in. (51 mm) min.
2 in. (51 mm) min. 2 in. (51 mm) min.
2 in. (51 mm) min.
Figure 3.2 Clearances to Combustible Materials
Fire Risk
• Comply with all minimum clearances to combustibles as speci¿ ed.
• Framing or ¿ nishing material used on the front of, or in front of, the
appliance closer than the minimums listed, must be constructed entirely
of noncombustible materials (i.e., steel studs, concrete board, etc.).
Failure to comply may cause ¿ re.
WARNING
Heat & Glo • EM-42 • 28324 Rev U • 02/07 11
C. Sidewalls/Surrounds
Adjacent combustible side walls must be located a minimum of 12 in. (305 mm) from the ¿ replace opening. See Figure 3.3.
If you are using a decorative surround constructed of combustible material, it must be located within the shaded area de-
¿ ned in Figure 3.3. Short stub walls are also acceptable if they are contained within the shaded area.
D. Frame the Fireplace
Figure 3.4 shows a typical framing (using 2 x 4 lumber) of the ¿ replace, assuming combustible materials are used. All re-
quired clearances to combustibles around the ¿ replace must be adhered to. See Figure 3.2. Any framing across the top of
the ¿ replace must be above the level of the top standoffs.
18-1/2 in.
(470 mm)
53 deg
12 in.
(305 mm)
39 deg
4 in. (102 mm)
Brick
Front
Flush Front
12 in.
(305 mm)
14-1/2 in.
(368 mm)
43-1/4 in.
(1099 mm)
(framing)
36 in.
(914 mm)
(opening)
Figure 3.3 Sidewalls and Surrounds
25-5/8 in.
(651 mm)
41-1/4 in.
(1048 mm) 43-1/4 in.
(1099 mm)
2 in. (51 mm)
minimum
air
clearance
to the
enclosure. Note: Fireplace header
cannot be positioned
until after the fireplace
assembly is in place.
41-1/4 in. (1048 mm)
header height. Use
only noncombustible
material below the top
of the front standoffs.
Figure 3.4 Framing the Fireplace
Heat & Glo • EM-42 • 28324 Rev U • 02/07
12
E. Construct the Chase
A chase is a vertical boxlike structure built to enclose the A
chase is a vertical boxlike structure built to enclose the ¿ re-
place and/or its vent system. Vertical chimneys that run on
the outside of a building must be installed inside a chase.
Construction of the chase may vary with the type of build-
ing. These instructions are not substitutes for the require-
ments of local building codes. Local building codes MUST
be checked.
Chases should be constructed in the manner of all outside
walls of the home to prevent cold air drafting problems. The
chase should not break the outside building envelope in any
manner. All outer walls need to be insulated.
Building codes require false ceiling and ceiling ¿ restops at
each À oor of the chase or every 10 ft (3.05 m) of clear space
to control spread of ¿ re.
Walls, ceiling, base plate and cantilever À oor at the ¿ rst level
of the chase should be insulated. See Figure 3.5. Vapor and
air in¿ ltration barriers should be installed in the chase as per
regional codes for the rest of the home. Additionally, Hearth
& Home Technologies recommends that the inside surfac-
es be sheet rocked and taped (or the use of an equivalent
method) for maximum air tightness.
Ceiling
Firestop
Metal Chase Top
Round Termination Cap
False Ceiling
Insulation in the
outside walls
of the chase
Attic
Insulation
Shield
Chimney
Ceiling
Firestop
Tabs
False Ceiling
False Ceiling Insulation
Insulation
Figure 3.5 Chase Assembly
F. Chimney Requirements
When planning your ¿ replace location, the chimney con-
struction and necessary clearances must be considered.
The ¿ replace system and chimney components have been
tested to provide À exibility in construction. Vertical distances
are measured from the base of the ¿ replace as shown in
Figure 5.2.
12 3
All outside walls should be insulated.
Figure 3.6 Chase Constructions
1. Fireplace and chimney enclosed in an exterior chase.
2. Chimney offset through exterior wall and enclosed in
chase.
3. Chase constructed on roof.
Gas line holes and other openings should be caulked with
high temperature caulk or stuffed with unfaced ¿ berglass in-
sulation. If the ¿ replace is being installed on a cement slab,
we recommend that in cold climates, a sheet of plywood or
other raised platform be placed underneath to prevent con-
ducting cold up into the room.
Three examples of chase applications are shown in Fig-
ure 3.6.
Note: A maximum of two pairs of offsets and returns may
be used.
• Minimum overall straight height 13.5 ft 4.11 m
• Minimum height with offset/return 14.8 4.51 m
• Maximum height 90 ft 27.43 m
• Maximum allowed shift between an offset and
return 4.2 ft 1.28 m
• Maximum chimney length between an offset/
return 20 ft 6.10 m
• Maximum distance between chimney
stabilizers 35 ft 10.67 m
• Double offset/return minimum height 20 ft 6.10 m
• Maximum unsupported chimney length
between offset and return 6 ft 1.83 m
• Maximum straight unsupported chimney height
above the ¿ replace 35 ft 10.67 m
• Maximum unsupported chimney above roof 6 ft 1.83 m
Heat & Glo • EM-42 • 28324 Rev U • 02/07 13
Risk of Smoke Spillage
Outside air inlet must be located to prevent blockage
from:
• Leaves
• Snow/ice
• Other debris
Blockage may cause combustion air starvation.
CAUTION
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, À oor or ceiling cavity.
• Enclosed space such as an attic or
garage.
• Close proximity to exhaust vents or
chimneys.
Fumes or odor may result.
WARNING
Outside Air
Kit Assy.
Outside Air
Shield
2 Wire Ties
Flexible Duct
(not supplied)
Figure 4.1 Outside Air Installation
A. Install the Outside Air Kit
This ¿ replace will operate correctly only if adequate ventila-
tion is provided to allow proper draft to the ¿ replace system.
See Section 2.
The outside air kit is supplied with this ¿ replace. Using an
outside air kit is highly recommended to minimize the effects
of negative pressure within the structure. We recommend
you utilize the shortest duct run to optimize the performance
of the outside air kit. Cold air À ow can be minimized by put-
ting a small dip in the duct creating a cold air trap. This trap
can also help prevent heat build-up and exhausting out the
intake due to the stack effect. The outside air kit inlet should
be positioned in a manner that will not allow snow, leaves,
etc. to block the inlet. In some installations the air duct
may need to be run vertically. In such an installation, a 3 ft
(.914 m) height difference must be maintained from the top
of the uppermost chimney section to the outside combustion
air inlet. See Figure 4.2. The outside air kit is installed on the right hand side of the
¿ replace. Remove the insulation in the tube, slide tube out to
fasten duct to it. See Figure 4.1.
See Figure 4.3 for proper placement of outside air inlet.
See Figure 4.4 for handle location/operation.
Heat & Glo • EM-42 • 28324 Rev U • 02/07
14
Pull out to open.
Push in to close.
Figure 4.4 Locating the Outside Air Control
Outlet placed
higher than 3 ft
below the
termination cap
Attic space
Garage or
combustible
liquids storage
Outlet blocked by
snow, leaves, etc.
Clear area
outside
house or in
ventilated
crawl space
YES
NO NO
NO
NO
Use only duct materials specified
by manufacturer (preferably with
short run or mainly straight duct,
except small dip for cold air trap
which will help prevent flow of cold air).
Factory-built
fireplace
Figure 4.3 Outside Combustion Air Placement
3 ft min. from top of
uppermost chimney
section to air inlet.
Attic insulation shield
must be used to keep
insulation away from
chimney.
Ceiling firestop
on floor of attic.
Figure 4.2 Outside Air Inlet Locations
Heat & Glo • EM-42 • 28324 Rev U • 02/07 15
B. Secure the Fireplace
• Position the Fireplace
This ¿ replace may be placed on either a combustible or
noncombustible continuous À at surface. Follow the in-
structions for framing in Section 3.D. Slide the ¿ replace
into position. Be sure to provide the minimum air clear-
ance at the sides and back of the ¿ replace assembly.
See Section 3.B.
Included with your ¿ replace you will ¿ nd 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 ¿ replace and the hearth ex-
tension meet.
Slide each metal strip 2 in. (51 mm) under the front
edge of the ¿ replace. The individual pieces must over-
lap each other by 1 in. (25 mm) minimum in the middle
of the ¿ replace to provide continuous coverage of the
À oor. See Figure 4.5. These metal strips should extend
from the front and sides of the ¿ replace opening by 2 in.
(51 mm).
Note: When elevating the ¿ replace above the hearth exten-
sion 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 4.6 Protect the Front of an Elevated Platform
• Level the Fireplace
Level the ¿ replace side-to-side and front-to-back. Shim
with noncombustible material, such as sheet metal, as
necessary. Secure the ¿ replace (using the nailing À ang-
es located on either side of the ¿ replace) to the vertical
framing.
Important: To ensure proper ¿ t of the glass doors, check
the ¿ replace opening for square. Measure diagonal dis-
tances of the opening to make sure they are equal. If they
are not, continue to shim the ¿ replace 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 4.5 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 À ooring.
WARNING
Heat & Glo • EM-42 • 28324 Rev U • 02/07
16
NOTE:
• Chimney performance may vary.
• Trees, buildings, roof lines and wind conditions affect
performance.
• Chimney height may need adjustment if smoking or
overdraft occurs.
Chimney must extend
beyond combustible
roof structure
Maintain minimum
height of chimney
above roof
Additional
support for
tall chimneys
Install roof flashing
according to minimum
requirements
Maintain minimum
clearances to
combustibles as
specified
Offsets/returns
may not exceed
30° from vertical
Lock chimney
sections together
firmly to resist
movement
Ceiling firestops
are required where
chimney passes
through ceiling or
floor
Support straps for offsets/
returns must be secured
to adequate framing
Termination Cap
Storm Collar
Figure 5.1 Typical Chimney System - Guidelines for Chimney System Installation
5
5 Chimney Assembly
Heat & Glo • EM-42 • 28324 Rev U • 02/07 17
A. Chimney Requirements
Vertical distances are measured from the base of the ¿ re-
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 ¿ replace assembly to the point where the smoke exits
the termination cap.
• Subtract the effective height of the ¿ replace assembly from
the overall height of the ¿ replace 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 ¿ replace installation.
• Determine the number of ceiling ¿ restop, stabilizers,
roof flashing, etc. required to complete the fireplace
installation.
6 ft (1.8 m) max.
unsupported
run
20 ft (6.10 m) max.
pipe between an
offset & return
Ceiling Firestop
35 ft (10.7 m)
max. straight
unsupported
chimney height
16.5 ft (5.03 m) min. height/single offset-return
20 ft. (6.10 m) min. height/double offset-return
90 ft (27.4 m) max. height
6 ft (1.83 m) max.
unsupported chimney
above roof
40 in.
(1016 mm)
Effective
Height
Figure 5.2 Chimney Requirements
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
HEIGHT OF CHIMNEY COMPONENTS in. mm
Chimney Stabilizer
SL3 4-3/4 121
Ceiling Firestops
FS338 0 0
FS339 0 0
FS340 0 0
Offsets/Returns
SL315 13-3/8 340
SL330 15-1/2 394
Roof Flashing
RF370 0 0
RF371 0 0
Chimney Sections*
SL306 4-3/4 121
SL312 10-3/4 273
SL318 16-3/4 425
SL324 22-3/4 578
SL336 34-3/4 883
SL348 46-3/4 1187
* Dimensions reÀ ect effective height.
Note: A maximum of two pairs of offsets and returns may
be used.
• Minimum overall straight height 13.5 ft 4.11 m
• Minimum height with offset/return 14.8 4.51 m
• Maximum height 90 ft 27.43 m
• Maximum allowed shift between an offset and
return 4.2 ft 1.28 m
• Maximum chimney length between an offset/
return 20 ft 6.10 m
• Maximum distance between chimney
stabilizers 35 ft 10.67 m
• Double offset/return minimum height 20 ft 6.10 m
• Maximum unsupported chimney length
between offset and return 6 ft 1.83 m
• Maximum straight unsupported chimney height
above the ¿ replace 35 ft 10.67 m
• Maximum unsupported chimney above roof 6 ft 1.83 m
Heat & Glo • EM-42 • 28324 Rev U • 02/07
18
B. Using Offsets/Returns
To bypass any overhead obstructions, the chimney may be
offset using an 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 5.3. Use
dimension “A” to determine chimney section required to
achieve the needed shift.
• After determining the offset dimension, refer to Table 5.2
and ¿ nd 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 ¿ nd the number of chimney
sections required and the model number of those particular
chimney parts.
• Whenever the chimney penetrates a À oor/ceiling, a ceiling
¿ restop must be installed.
• The effective height of the ¿ replace assembly is measured
from the base of the ¿ replace 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 5.3 Chimney Offset/
Return
Fire Risk
• Draft will be restricted if offset/returns
greater than 30° are used.
WARNING
15-degree 30-degree
SL306 SL312 SL318 SL324 SL336 SL348
ABAB
in. mm in. mm in. mm in. mm
1-5/84113-3/8 3403-5/89215-1/2394------
2-7/87317-3/4 4515-1/214018-5/84731-----
4-1/810222-3/8 5687-1/418421-3/45522-----
4-1/2 114 23-5/8 600 8-1/2 216 23-3/4 603 - 1 - - - -
5-3/4 146 28-1/4 718 10-1/4 260 27 686 1 1 - - - -
6 152 29-3/8 746 11-1/2 292 29 737 - - 1 - - -
7-1/4 184 34 864 13-1/4 337 32-1/8 816 - 2 - - - -
7-3/4 197 36-1/8 918 14-1/2 368 34-1/8 867 - - - 1 - -
8-3/4 222 39-3/4 1010 16-1/4 413 37-3/8 949 1 - - 1 - -
10-3/8 264 45-5/8 1159 19-1/4 489 42-1/2 1080 - - 2 - - -
10-5/827046-3/4 118720-1/252144-5/81133----1-
11-7/8 302 51-3/8 1305 22-1/4 565 47-3/4 1213 1 - - - 1 -
13-1/2 243 57-1/4 1454 25-1/4 641 52-7/8 1343 - - - 2 - -
13-3/4 349 58-3/8 1483 26-1/2 673 55 1397 -----1
15 381 63 1600 28-1/4 718 58-1/8 1476 1 ----1
16-1/2 419 68-3/4 1746 31-1/4 794 63-1/4 1607 - 1 - - - 1
18 457 74-5/8 1895 34-1/4 870 68-1/2 1740 - - 1 - - 1
19-5/8 498 80-3/8 2042 37-1/4 946 73-3/4 1873 - - - 1 - 1
20-5/8 524 84-1/8 2137 39-1/8 994 76-7/8 1953 1 - - 1 - 1
22-3/4 578 91-7/8 2334 43-1/4 1099 84-1/8 2137 ----11
24 610 96-1/2 2451 45-1/8 1146 87-1/4 2216 1 - - - 1 1
25-7/8 657 103-1/2 2629 49-1/4 1251 94-1/2 2400 -----2
Proper assembly of air-cooled chimney parts result in an overlap at chimney joints of 1-1/4 in. (32 mm). Effective
length is built into this chart.
Example: Your “A” dimen-
sion 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 1/2 in. (368 mm)
using a 30° offset/return.
It is then determined from
the table that you would
need 34 1/8 in. (867 mm)
(Dimension “B”) between
the offset and return. The
chimney component that
best ¿ ts your application is
one SL324.
Heat & Glo • EM-42 • 28324 Rev U • 02/07 19
C. Assemble the Chimney Sections
Attach either a straight chimney section or an offset to the
top of the ¿ replace (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 À ue is placed to the inside of the À ue section below
it. The outer casing is placed outside the outer casing of the
chimney section below it. See Figure 5.4.
D. Install the Ceiling Firestop
• Mark and cut an opening in the ceiling for the ceiling
¿ restop being used. See Figure 5.5.
• Frame the opening with the same size lumber used in the
ceiling joists.
• Install the ceiling ¿ restop.
Note: The ceiling ¿ restop 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 ¿ restop may be above or below the joist of an
insulated ceiling.
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 ¿ replace or at any
chimney joint.
Note: Inner À ue and outer liner sections cannot be disas-
sembled once locked together. Plan ahead to ensure the
proper installation height is achieved with the selected
chimney components.
• Ceiling ¿ restop must be used at ceiling/À oor.
• Chase construction requires ceiling ¿ restops at each
À oor or every 10 ft (3.05 m) of clear space.
• Use same dimensional lumber as joists.
Ceiling ¿ restop slows spread of ¿ re and reduces cold air
in¿ ltration.
CAUTION
Figure 5.4 Assembling Chimney Sections
ROOM ABOVE (non-insulated ceiling)
ATTIC ABOVE (insulated ceiling)
BA
Ceiling 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 5.5 Installing the Ceiling Firestop
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 Catalog #
AB
in. mm in. mm
FS338 14-1/2 368 14-1/2 368
FS339 14-1/2 368 18-3/8 467
FS340 14-1/2 368 23 584
Heat & Glo • EM-42 • 28324 Rev U • 02/07
20
24 in.
(610 mm)
Attic
Insulation
Shield
Chimney
Insulation
10-1/2 in.
(267 mm)
14-1/2 in. (368 mm)
Ceiling Firestop
Tabs
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 ¿ restop.
• Slide the shield down until it rests on the ceiling ¿ restop.
The ceiling ¿ restop will support the insulation shield. See
Figures 5.6 and 5.7.
F. Double-check the Chimney Assembly
Continue assembling the chimney sections up through the
ceiling ¿ restops 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 5.8.
* or equivalent #6 or #8 sheet metal screw no longer than
3/4 in. (19 mm).
Attic
Insulation
Shield
Chimney
Insulation
Ceiling Firestop
Tabs
24 in.
(610 mm)
10-1/2 in.
(267 mm)
14-1/2 in. (368 mm)
Figure 5.6 Install Attic Insulation Shield Above the Ceiling
Figure 5.7 Install Attic Insulation Shield Below the Ceiling
Ceiling
Firestop
Straps
Optional
Additional
Support
Joint
Band
(Optional)
Figure 5.8 Secure the Chimney
Fire Risk
• DO NOT pack insulation or other
combustibles: between ceiling ¿ restops;
between chimney and attic insulation
shield.
• ALWAYS maintain speci¿ ed clearances
around chimney and ceiling firestop
systems.
• Install ceiling ¿ restops as speci¿ ed.
Failure to keep insulation or other material
away from chimney pipe may cause ¿ re.
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.
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