Heat-N-Glo ENERGY MASTER EM-415R Manual

Heat-N-Glo, a Division of Hearth Technologies Inc.
20802 Kensington Blvd.
Lakeville, MN 55044
ENERGY MASTER
EM-415R EM-485R
RADIANT WOODBURNING FIREPLACE
INSTALLATION & OPERATING
INSTRUCTIONS
FOR RESIDENTIAL USE
Models EM-415R and EM-485R

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EM SERIES WOODBURNING FIREPLACE
Table of Contents
Listings and Code Approvals...............................................................................................................................3
Description of the Fireplace System....................................................................................................................3
Fireplace System Components............................................................................................................................4
Pre-Installation Preparation .................................................................................................................................8
Fireplace Locations and Space Requirements..............................................................................................8
Framing The Fireplace..................................................................................................................................9
Hearth Extensions.......................................................................................................................................10
Sidewalls/Surrounds....................................................................................................................................11
Mantel..........................................................................................................................................................11
Chimney Requirements .....................................................................................................................................11
Using Offsets and Returns..........................................................................................................................12
Chimney Height Requirements...................................................................................................................13
Step-By-Step Installation of the Fireplace System.............................................................................................14
Constructing a Chase ........................................................................................................................................19
Materials For The Chase.............................................................................................................................19
Installing a Terminal Cap on a Chase-Enclosed Chimney..........................................................................20
Operating Instructions........................................................................................................................................21
Safety Precautions
1. Please read these installation instructions com-
pletely before beginning installation procedures.
Failure to follow them could cause a fireplace
malfunction resulting in serious injury and/or prop-
erty damage.
2. Always check your local building Codes prior to
installation. The installation must comply with all
local, regional, state and national Codes and reg-
ulations.
3. An adequate supply of replacement combustion
air from outside the house must be available to
the fire for the fireplace to operate properly. To
achieve this, the use of the optional Outside Air
Kit is highly recommended.
In the event the home is unusually tight, the
optional combustion air kit may not provide all the
air required to support combustion. Heat-n-glo is
not responsible for any smoking or related prob-
lems that may result from the lack of adequate
combustion air. It is the responsibility of the
builder/contractor to ensure that adequate com-
bustion air has been provided for the fireplace.
4. The EM Series woodburning fireplace must be
installed with the Hearth Technologies Inc. (HTI)
SL300 Series chimney system.
The chimney system must always terminate out-
side the building. Be sure to follow all chimney
specifications given in these installation instruc-
tions.
5. NEVER leave children unattended when there is
a fire burning in the fireplace.
6. This fireplace is built for solid fuel only. DO NOT
use chimney cleaners or flame colorants in your
fireplace.
7. NEVER use gasoline, gasoline type lantern fuel,
kerosene, charcoal lighter fluid, or similar liquids
in this fireplace. Keep any flammable liquids a
safe distance from the fireplace.
8. The flue damper must be open at all times when
the fireplace is in use.
9. While servicing this fireplace, always shut off any
electricity or gas to the fireplace. This will prevent
possible electrical shock or burns. Also, make
sure the unit is completely cooled before servicing.
10. To ensure a safe fireplace system and to prevent
the buildup of soot and creosote, inspect and
clean the fireplace and chimney prior to use and
periodically during the burning season.
PLEASE RETAIN THIS MANUAL FOR FUTURE REFERENCE.

The EM Series fireplace system has been tested and
listed in accordance with UL127 and ULC S610
Standards, and has been listed by Underwriters
Laboratories Inc. for installation and operation in the
United States and Canada as described in these
Installation & Operating Instructions.
The Model EM Series fireplace has been tested and
listed for use with the optional components given on
page 4. These optional components may be pur-
chased separately and installed at a later date.
However, installation of an Outside Air Kit and
Junction Box will require significant reconstruction,
and should be installed at the time of the initial fire-
place installation.
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 any assistance is required during
installation, please contact your local dealer or
Heat-N-Glo, a Division of Hearth Technologies Inc.,
20802 Kensington Blvd., Lakeville, MN 55044.
WARNING!
THIS HEAT-N-GLO 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.
The HEAT-N-GLO fireplace system consists of the following:
1. Fireplace/Integral Grate 3. Chimney System
2. Hearth Extension 4. Chimney Termination Cap
Optional components include:
1. Glass Doors 2. Outside Combustion Air System
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EM SERIES WOODBURNING FIREPLACE
LISTINGS AND CODE APPROVALS
DESCRIPTION OF THE FIREPLACE SYSTEM
NOTE: Illustrations throughout these instructions
reflect “typical installations” and are for design
purposes only. Actual installation may vary slight-
ly due to individual design preferences. However,
minimum and maximum clearances must be main-
tained at all times.
The illustrations and diagrams used throughout
these installation instructions are not drawn to
scale.
Tools and Building Supplies
Normally Required:
Tools: Building Supplies:
Saw Hearth Extension Material
Pliers Wall-finishing Material
Hammer Framing Material
Phillips Screwdriver Fireplace Surround
Tape Measure Caulking Material
Plumb Line
Level
Electric Drill and Bits
Framing Square

HTI CATALOG # DESCRIPTION
EM-415R* EM-485R* Energy Master Fireplace, includes Integral Grate and Hearth Protection Strips
HX3 HX4 Hearth Extension
GR23* GR24* Integral Grate (included with Fireplace)
DM1736 DM1742 Original Bi-fold Doors - Black Finish
DM1736A DM1742A Original Bi-fold Doors - Brushed Brass Finish
DM1736B DM1742B Original Bi-fold Doors - Polished Brass Finish
GDA-225* Cabinet Glass Doors - Polished Brass Finish
GDA-42* Cabinet Glass Doors - Polished Brass Finish
AK22 Outside Air Kit
ID4 Insulated Duct/Outside Air
UD4 Uninsulated Duct/Outside Air
CAK4 Chimney Air Kit
SL306 Chimney Section - 6 inch long
SL312 Chimney Section - 12 inch long
SL318 Chimney Section - 18 inch long
SL324 Chimney Section - 24 inch long
SL336 Chimney Section - 36 inch long
SL348 Chimney Section - 48 inch long
SL3 Chimney Stabilizer
SL315 Chimney Offset/Return - 15°
SL330 Chimney Offset/Return - 30°
FS338 Firestop - Straight
FS339 Firestop - 15°
FS340 Firestop - 30°
AS8 SL300 Straight Attic Insulation Shield, 24"
JB877 Chimney Joint Band
CB876 Chimney Bracket
RF370 Roof Flashing - Flat to 6/12 Pitch
RF371 Roof Flashing - 6/12 to 12/12 Pitch
TR342 Telescoping Chimney Terminal Cap - Round
TR344 Chimney Terminal Cap - Round (Storm collar included)
ST375 Chimney Terminal Cap - Square
TS345 Chimney Terminal Cap - Square
TS345P Chimney Terminal Cap - Square (Painted)
CT35 Chase Top
The table below, together with the following pictures
on pages 5 - 7, show only those components which may be safely used with this fireplace.
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EM SERIES WOODBURNING FIREPLACE
FIREPLACE SYSTEM COMPONENTS
*Heat-N-Glo Catalog Number

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GR23
GR24
HEARTH EXTENSIONS GLASS DOORS
OUTSIDE AIR KIT
INTEGRAL GRATE
(supplied)
EM SERIES WOODBURNING FIREPLACE
HTI CAT. # A B
HX3 52" 16"
HX4 66” 20”
AK22
HNG CAT. # A B C D
EM-415R 36” 42” 28 1⁄4”14
1/2”
EM-485R 42” 48” 31” 14”
HNG CAT. # A
GDA-225 353⁄8"
GDA-42 413⁄8"
HTI CAT. # A
DM1736 353⁄8"
DM1742 413⁄8"

CAT. # A
SL315 15°
SL330 30°
CAT. # A B
SL306 6" 43/4"
SL312 12" 103/4"
SL318 18" 163/4"
SL324 24" 223/4"
SL336 36" 343/4"
SL348 48" 463/4"
CAT. # A B
FS338 0° 141/2"
FS339 15° 183/8"
FS340 30° 2215/16"
CHIMNEY SECTIONS CHIMNEY STABILIZER OFFSETS/RETURNS
SL3
FIRESTOP SPACERS ROOF FLASHING
Flat to 6/12 Pitch
RF370
6/12 to 12/12 Pitch
RF371
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EM SERIES WOODBURNING FIREPLACE
A= Actual length
B= Effective length (length of chimney part
after it has been snapped to another)
JB877
JOINT BAND CHIMNEY AIR KITCHIMNEY BRACKET
CB876 CAK4
AS8
STRAIGHT ATTIC
INSULATION SHIELD
CAT. # A B
SL3 6” 43/4”

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CHIMNEY TERMINAL CAPS & VENT SECTIONS
TS345/345P
SQUARE TERMINAL CAP
TR342
ROUND TELESCOPING
TERMINAL CAP
TR344
ROUND TERMINAL CAP
WITH STORM COLLAR
CT35
CHASE TOP
ST375
SQUARE TERMINAL CAP
EM SERIES WOODBURNING FIREPLACE

WITH OUTSIDE AIR
WITH OR WITHOUT OUTSIDE AIR
WITHOUT OUTSIDE AIR
Several options are available to you when choosing a
location for your fireplace. This fireplace may be used as a room divider, installed along a wall, across a corner or use an exterior chase. See Figure 1.
4-99 8 31316A
Figure 1
Fireplace Locations
Figures 2 and 3 show two typical installations assum-
ing 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
Installation along a wall or an
exterior chase.
Figure 3
Corner Installation
EM SERIES WOODBURNING FIREPLACE
FIREPLACE LOCATIONS AND SPACE REQUIREMENTS
PRE-INSTALLATION PREPARATION
WARNING!
DO NOT DRAW OUTSIDE AIR FROM GARAGE SPACES. EXHAUST PRODUCTS OF
GASOLINE ENGINES ARE HAZARDOUS.
DO NOT INSTALL OUTSIDE AIR DUCTS SUCH THAT THE AIR MAY BE DRAWN
FROM ATTIC SPACES, BASEMENTS OR ABOVE THE ROOFING WHERE OTHER
HEATING APPLIANCES OR FANS AND CHIMNEYS EXHAUST OR UTILIZE AIR.
THESE PRECAUTIONS WILL REDUCE THE POSSIBILITY FOR SMOKING OR FLOW
REVERSAL.
CAT. # A B C D E
EM-415R 431⁄2"71
1⁄2"35 3⁄4"15 3⁄4"50 9⁄16"
EM-485R 491⁄2"77
1⁄2"38 7⁄8" 18" 547⁄8"
CAT. # A
EM-415R 431⁄2"
EM-485R 491⁄2"
CAT. # A
EM-415R 47"
EM-485R 53"
NOTE: Rough framing dimensions only.

Figure 4 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. A 3/4" air clearance must be main-
tained at the back and sides of the firebox assembly.
Chimney Sections at any level require a two inch
minimum air space clearance between the framing
and chimney section.
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EM SERIES WOODBURNING FIREPLACE
FRAMING THE FIREPLACE
Figure 4
Framing the Fireplace
WARNING!
TO PREVENT CONTACT WITH SAGGING OR LOOSE INSULATION, THE FIREPLACE
MUST NOT BE INSTALLED AGAINST VAPOR BARRIERS OR EXPOSED INSULA-
TION. LOCALIZED OVERHEATING COULD OCCUR AND A FIRE COULD RESULT.
Combustible Material.Material 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 unplas-
tered.
Non-combustible 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 combination thereof.
Non-combustible Sealant Material. Sealants that
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 non-com-
bustible sealant, one-half inch wide maximum, must
be used to close off any gaps at the top and sides
between the fireplace and facing to prevent cold air
leaks.
Only non-combustible materials may be used to
cover the black metal fireplace front.
CAT. # A
EM-415R 431⁄2"
EM-485R 491⁄2"
WARNING!
DO NOT APPLY FINISHING MATERIALS OVER THE BOTTOM AIR INLET SLOTS AT
THE BASE OF THE GLASS DOOR OPENING ON THE FACE OF THESE FIREPLACES.
THIS WILL BLOCK THE FLOW OF COOLING AIR AND MAY CAUSE DANGEROUSLY
HIGH TEMPERATURES ON COMBUSTIBLE SURFACES OR ON THE
FIREPLACE ITSELF.

(THERMAL CONDUCTIVITY) "K" = BTU in./hr. ft2°F
TO SUBSTITUTE ALTERNATE INSULATION MATERIAL, YOU NEED TO KNOW THE "K"
FACTOR FOR THAT MATERIAL. TO CALCULATE THE REQUIRED THICKNESS FOR THE
ALTERNATE MATERIAL USE THE FOLLOWING FORMULA:
K ALT.
.43
EXAMPLE:“K” OF BRICK = 5
5
.43
A hearth extension must be installed with all fire-
places. It is to protect the combustible floor in front of
the fireplace from both radiant heat and sparks.
The construction of and materials used for a factory-
built hearth extension are shown in Figure 5. A
hearth extension of this construction may be covered
with any non-combustible decorative material and
may have a maximum thickness of 6". Seal gaps
between the hearth extension and the front of the fire-
place with a non-combustible sealant.
HEARTH EXTENSIONS
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Figure 5
Factory-Built Hearth Extension
Figure 6 - Hearth Extension
EXAMPLES OF INSULATION
USG MICORE CV230 1/2" 0.43
REQUIRED
THICKNESS K VALUE
x .5 = THICKNESS OF ALTERNATE MAT. (INCHES) x .5 = 5.81 IN. OF BRICK.
EM SERIES WOODBURNING FIREPLACE
CAT. # A B
EM-415R 52" 16"
EM-485R 66" 20"
WARNING!
HEARTH EXTENSIONS ARE TO BE INSTALLED ONLY AS ILLUSTRATED TO PRE-
VENT 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.
Field constructed Hearth Extensions should be constructed in accordance with the minimum dimensions provid-
ed in Figure 6.

4-99 11 31316A
Adjacent combustible side walls must be located a
minimum of 12" from the fireplace opening. See
Figure 7. If you are using a decorative surround con-
structed of combustible material, it must be located
within the shaded area defined in Figure 7. Short
stub walls are also acceptable if they are contained
within the shaded area.
Figure 7
Sidewalls/Surrounds
A combustible mantel may be positioned no lower
than 12” above the top of the firebox opening. The
combustible mantel may have a maximum depth of
12”. Combustible trim pieces that project no more
than 1 1/2” from the face of the fireplace, can be
placed no closer than 6” from the top and side of the
firebox opening, however they must not cover the
black metal front of the fireplace. This mantel clear-
ance is in accordance with Section 7-3.3.3 of
ANSI/NFPA 211. Combustible trim pieces can also
be located in the shaded areas shown in Figure 7.
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 the following flexibility in construc-
tion. The following figures are the minimum distances from the base of the unit.
1. Minimum overall straight height 16.5 ft.
2. Minimum height with Offset/Return 16.5 ft.
3. Double Offset/Return minimum height 20 ft.
4. Maximum chimney length between an Offset/Return 12 ft.
5. Maximum unsupported Chimney length between Offset/Return 6 ft.
6. Maximum distance between Chimney Stabilizers 35 ft.
7. Maximum height 90 ft.
8. Maximum straight unsupported chimney height above firebox 25 ft.
SIDEWALLS/SURROUNDS
MANTEL
EM SERIES WOODBURNING FIREPLACE
CAT. # A B
EM-415R 36" 42"
EM-485R 42" 48"
USING OFFSETS AND RETURNS
To bypass any overhead obstructions, the chimney may
be offset using a 15° offset/return (SL315) or a 30° off-
set/return (SL330). Perform the following steps to deter-
mine the correct chimney component combination for
your particular installation.
An offset and return may be attached together or a chim-
ney section(s) may be used between an offset and return.
However, the distance between two elbows must never
exceed 12 feet in total length.
1. Measure how far the chimney needs to be
shifted to enable it to avoid the overhead
obstacle. See Figure 8, dimension “A”.
2. After determining the offset dimension, refer
to Table 1 (page 13) and find the “A” dimen-
sion closest to but not less than the dis-
tance of shift needed for your installation.

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EM SERIES WOODBURNING FIREPLACE
WARNING!
DO NOT COMBINE OFFSETS TO
CREATE AN OFFSET GREATER
THAN 30° FROM VERTICAL. THIS
MAY CREATE A FIRE HAZARD
SINCE THE NATURAL DRAFT MAY
BE RESTRICTED.
Figure 8
Chimney Offset/Return
5. Whenever the chimney penetrates a floor/ceiling,
a firestop spacer must be installed.
6. The effective height of the firebox assembly is
367⁄8".
Example: Your “A” dimension from Figure 8 is 141⁄2".
Using Table 1, the dimension closest to but not less
than 141⁄2" is 145⁄8" using a 30° offset/return. It is then
determined from the table that you would need 331⁄16"
(Dimension “B”) between the offset and return. The
chimney components that best fit your application are
two SL312’s.
15° 30°
A B A B SL306 SL312 SL318 SL324 SL336 SL348
15⁄8133⁄837⁄8147⁄16 ––– –––
27⁄8173⁄461⁄4189⁄16 1–––––
–– 8
5⁄82211⁄16 2–––––
47⁄16 239⁄16 91⁄4233⁄4–1––––
––11
5⁄8277⁄811––––
629
3⁄8121⁄42815⁄16 ––1–––
73⁄16 34 145⁄8331⁄16 –2– –––
––15
1⁄4341⁄8–––1––
––17
5⁄8381⁄41––1––
––20
5⁄8437⁄16 ––2–––
105⁄8463⁄4211⁄4449⁄16 ––––1–
117⁄8513⁄8235⁄84811⁄16 1–– –1–
––26
5⁄85313⁄16 ––– 2––
133⁄4583⁄8271⁄4553⁄4––– ––1
15 6215⁄16 295⁄8591⁄16 1––––1
161⁄2683⁄4325⁄8641⁄4–1– ––1
181⁄16 749⁄16 355⁄8697⁄16 ––1––1
––38
5⁄8745⁄8–––1–1
– – 41 783⁄41–– 1–1
223⁄4917⁄8445⁄8851⁄16 ––––11
24 961⁄247 891⁄81–––11
257⁄81031⁄2505⁄8957⁄16 –––––2
TABLE 1 Offset Chart* (Dimensions are in inches)
3. The “B” dimensions that coincide with the “A” dim-
ensions represent 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.
*Proper assembly of air cooled chimney parts result in an overlap at chimney joints of 11⁄4". Effective length is built into this
chart.

EM SERIES WOODBURNING FIREPLACE
4-99 13 31316A
Major building Codes specify a minimum chimney height
above the roof top. These specifications are summarized
in what is known as the “Ten Foot Rule”. This rule states:
If the horizontal distance from the side of the chimney to
the peak of the roof is 10 feet or less, the top of the chim-
ney must be at least 2 feet above the peak of the roof, but
never less than 3 feet in overall height above the highest
point where it passes through the roof. See Figure 9.
If the horizontal distance from the side of the chimney to
the peak of the roof is more than 10 feet, a chimney
height reference point is established on the surface of the
roof a distance of 10 feet from the side of the chimney in a
horizontal plane. The top of the chimney must be at least
2 feet above this reference point, but never less than 3
feet in height above the highest point where it passes
through the roof.
These chimney heights are necessary in the interest of
safety and do not ensure smoke-free operation. Trees,
buildings, adjoining roof lines, adverse wind conditions,
etc., may create a need for a taller chimney should smok-
ing occur.
CHIMNEY HEIGHT REQUIREMENTS
(Above the Roof Line)
Figure 9
Chimney Height
Height of Chimney Components
Chimney Stabilizer
SL3 43⁄4”
Firestop Spacers
FS338 0
FS339 0
FS340 0
Offset/Returns
SL315 133⁄8”
SL330 147⁄16”
Roof Flashing
RF370 0
RF371 0
Chimney Sections*
SL306 43⁄4”
SL312 103⁄4”
SL318 163⁄4”
SL324 223⁄4”
SL336 343⁄4”
SL348 463⁄4”
DETERMINING THE NUMBER OF CHIMNEY
SECTIONS REQUIRED
To determine the chimney components needed to com-
plete your particular installation, follow the below steps:
1. Determine the total vertical height of the fireplace
installation. This dimension is measured from the
base of the firebox assembly to the point where the
smoke exits the terminal cap.
2. Subtract the height of the firebox assembly (411⁄8")
from the overall height of the fireplace installation.
3. Refer to the chart on the right to determine what com-
ponents must be selected to complete the fireplace
installation.
4. Determine the number of firestop spacers, stabilizers,
roof flashing, etc. required to complete the fireplace
installation. *Dimensions reflect effective height.
Figure 8a - Fireplace (Side View)

EM SERIES WOODBURNING FIREPLACE
4-99 14 31316A
STEP-BY-STEP INSTALLATION OF THE FIREPLACE SYSTEM
Figure 10
Positioning the Metal Strips
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.
WARNING!
CAREFULLY FOLLOW THE
INSTRUCTIONS FOR ASSEMBLY
OF THE PIPE AND OTHER PARTS
NEEDED TO INSTALL THIS FIRE-
PLACE SYSTEM. FAILURE TO DO
SO MAY RESULT IN A FIRE, ESPE-
CIALLY IF COMBUSTIBLES ARE
TOO CLOSE TO THE FIREPLACE
OR CHIMNEY AND AIR SPACES
ARE BLOCKED PREVENTING
THE FREE MOVEMENT
OF COOLING AIR.
STEP 1 - Positioning the Fireplace.
This fireplace may be placed on either a combustible
or non-combustible continuous surface. Follow the
instructions for framing on page 9. Be sure to pro-
vide the minimum 3/4" air clearance at the sides
and back of the firebox assembly.
Slide the metal strip two inches under the front edge
of the fireplace. If a two piece strip is provided, the
individual pieces must overlap each other by one
inch in the middle of the fireplace to provide continu-
ous coverage of the floor. See Figure 10. These
metal strips should extend from the front and sides of
the fireplace by 2".
STEP 3 - Leveling the Fireplace.
Level the fireplace side-to-side and front-to-back.
Shim with non-combustible material, such as sheet
metal, as necessary.
Important: To ensure proper fit of the glass doors,
check the firebox opening for squareness. Measure
diagonal distances of the opening to make sure they
are equal. If they do not equal, continue to shim the
firebox until those diagonals correspond.
Secure the fireplace by utilizing the nailing flanges
located on either side of the fireplace to the vertical
framing.
STEP 2 - Placing the Protective Metal Hearth Strips.
Included with your fireplace you will find a metal hearth
strip measuring approximately 49" x 4". This strip is
used to provide added protection where the fireplace
and hearth extension meet.

EM SERIES WOODBURNING FIREPLACE
4-99 15 31316A
Figure 12
Connecting Chimney
Sections
Figure 11
Offset Secured to Fireplace
STEP 5 - Preparing the Ceiling for Firestop Spacers.
Mark and cut out an opening in the ceiling for the partic-
ular firestop spacer being utilized (141⁄2" x 141⁄2" for an
FS338, 141⁄2" x 1811⁄16" for an FS339, or 141⁄2" x 2215⁄16" for
an FS340). Frame the opening with the same dimen-
sion lumber used in the ceiling joists.
STEP 6 - Installing the Firestop Spacers.
Install the firestop spacer FS338 (Straight), FS339 (if a
15° offset located is in the ceiling joist area) or FS340 (if
a 30° offset is located in the ceiling joist area). Nail the
four sides of the firestop spacer to the joists using a
minimum of three (3) nails per side.
NOTE: The inner flue
is placed to the inside
of the flue section
below it. The outer
casing is placed out-
side the outer casing
of the chimney sec-
tion below it.
See Figure 12.
STEP 4 - Assembling Chimney Sections.
Attach either a straight chimney section or an offset
to the top of the fireplace depending on your installa-
tion requirement. Chimney sections are locked
together by pushing downward until the top section
meets the stop bead on the lower section. When
using offsets/returns, the offset and return sections
are recommended to be secured in place with screws
to ensure proper orientation. See Figure 11.
Figure 13
Installing the Firestop Spacer
STEP 7 - Installing an AS8 Insulation Shield.
An AS8 insulation shield should be installed when
there is a possibility of insulation coming into contact
with the factory-built chimney system. The AS8 is
installed bypositioning it over the vertical chimney
section where it penetrates an FS338 firestop spacer.
The FS338 will support the AS8. See Figure 14
(page 16). When the factory-built chimney penetrates
an insulated ceiling at either 15 or 30 degrees from
vertical, an insulation dam should be constructed from
plywood or sheet metal. A minimum 2" air space
must be provided between the insulation dam and the
factory-built chimney system.
These firestop spacers are designed to provide the
minimum two inch air space required around the
chimney. In all situations, the firestop spacers are to
be nailed to the ceiling joists from the bottom or fire-
place 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
two inch air space around the chimney.
Firestop spacers must be used whenever the chim-
ney penetrates a ceiling/floor area.
CAUTION:
INNER FLUE AND OUTER LINER
SECTIONS CANNOT BE DISASSEM-
BLED ONCE LOCKED TOGETHER.
PLAN AHEAD TO INSURE THE
PROPER INSTALLATION HEIGHT IS
ACHIEVED WITH THE SELECTED
CHIMNEY COMPONENTS.

EM SERIES WOODBURNING FIREPLACE
Figure 15
Offset/Return with Stabilizer
Figure 14
Installing an AS8
Figure 16
Ceiling and Attic Construction
STEP 10 - Marking 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 16.
STEP 8 - Double-checking the Chimney Assembly.
Continue assembling the chimney sections up through
the firestop spacers as needed. While doing so, be
aware of the height and unsupported chimney length
limitations that are given on page 11 under “Chimney
Requirements”.
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.
STEP 9 - Securing Chimney System.
When offsets and returns are joined to straight pipe
sections, they must be locked into position with the
screws provided, using the predrilled holes. To pre-
vent 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 15.
STEP 11 - Cutting Out the Hole in the Roof.
Measure to either side of the nail and mark the 141⁄2" x
141⁄2" opening required. This is measured on the hori-
zontal; actual length may be larger 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. Be sure to maintain a 2" mini-
mum air space between the chimney section and
the roof.
WARNING!
WHEN CHIMNEY SECTIONS EXCEED-
ING SIX FEET IN LENGTH ARE
INSTALLED BETWEEN AN OFFSET/
RETURN, STRUCTURAL SUPPORT
MUST BE PROVIDED TO REDUCE
OFF-CENTER LOADING AND PRE-
VENT CHIMNEY SECTIONS FROM
SEPARATING AT THE CHIMNEY
JOINTS.
4-99 16 31316A
NOTE: Be sure to provide support for the pipe
during construction and check to be sure inad-
vertent loading has not dislodged the chimney
section from the fireplace or at any chimney joint.

EM SERIES WOODBURNING FIREPLACE
4-99 17 31316A
Figure 17
Outside Air Location
STEP 12 - Assembling the Chimney Sections.
Continue to add chimney sections through the roof
opening, maintaining at least a 2" air space.
STEP 13 - Installing the Roof Flashing.
Install the roof flashing appropriate to the roof pitch and
install a TR344 terminal cap (round) following the
instructions shipped with these accessories.
STEP 14 - Installing the CAK4.
When installing a CAK4 chimney air kit, follow the
instructions provided with this accessory. Use of a
CAK4 is required in Canada.
STEP 15 - Installing an Outside Combustion Air Kit.
The outside air damper assembly is factory installed on
the left hand side of the firebox assembly. While its
use is optional, it is highly recommended to minimize
the effects of negative pressure within the structure.
Figure 17 illustrates two of many possible methods that
can be used to supply outside air to the fireplace sys-
tem. To complete the outside air system, install the
AK22 Outside Air Kit according to the installation
instructions supplied with the components.
NOTE: The outside air kit can terminate at
any level with the exception that it
must terminate at least three feet
below the chimney terminal cap as
shown in Figure 17.
CAUTION:
WHEN USING A GAS LOG SET, THE
FIREPLACE DAMPER MUST BE
SET IN THE FULLY OPEN
POSITION. THIS ENSURES A
PROPER VENTING OF COMBUS-
TION PRODUCTS.
STEP 16 - Completion of Fireplace 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 unit. A min-
imum clearance of 3/4" must be maintained
between the fireplace sides and the enclosure as
well as the fireplace back and the enclosure. See
Figure 4 for framing details.
STEP 17 - Provisions for an Optional Gas Log Set.
Knockouts are provided on both sides of the fireplace
to allow for connection of a certified gas log lighter or a
decorative gas appliance with a maximum input of
100,000 BTU/hr. 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 appli-
ance should be installed in accordance with the
National Fuel Gas Code, ANSI Z223.1-1980. The side
refractories are designed to allow 1/2” iron pipe to pass
through. Use a non-combustible sealant to seal any
opening between the gas pipe and refractory on the
inside. Repack the insulation removed, to seal around
the gas pipe where it exits the side of the fireplace. A
minimum 1 1/2” air clearance must be provided to
the 1/2” iron pipe. See Figure 18.
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 LABORATO-
RIES INC FOR USE IN THIS SPECIFIC
MODEL FIREPLACE. UNLESS THE
UNVENTED GAS LOG HEATER IS TESTED
AND LISTED FOR USE IN THIS FACTORY-
BUILT FIREPLACE, A FIRE HAZARD MAY
BE CREATED THAT CAN RESULT IN A
STRUCTURE FIRE.

EM SERIES WOODBURNING FIREPLACE
Figure 18
Gas Knockout Location
4-99 18 31316A
Figure 19
Positioning the Hearth Extension
STEP 19 - Installing the Glass Doors.
If desired, or required by local building Codes, install
the glass doors using the instructions supplied with
the particular set of doors you have chosen.
STEP 20 - Positioning the Hearth Extension.
Position and secure the hearth extension over the
protective metal strips that have been placed partially
under the firebox front. See Figure 19. These strips
should be protruding approximately two inches from
under the fireplace front. Seal the crack between the
hearth extension and fireplace with a non-com-
bustible sealant.
STEP 21 - Applying Finishing Materials on the
Hearth Extension.
Apply the non-combustible finishing material of your
choice to the hearth extension. Do not install com-
bustible materials over the black face of the fire-
place This poses a safety hazard and may start a
fire. You may only use non-combustible material
over the black face of the fireplace. Refer to Figure 7
for combustible material information.
STEP 18- Installing the Firescreen.
Attach the firescreen to the fireplace side, utilizing
the (2) hairpin clips from the enclosed fastener pack-
age. Use pliers to insert the clip through the last
strand of screen wire and into the hole at the mid-
point of the fireplace side. CONSTRUCTING A CHASE
A chase is a vertical box-like enclosure built around
the chimney and firebox. A chase may be constructed
for the fireplace andchimney or for the chimney only.
It is most commonly constructed on an outside wall.
In cold climates, it is recommended that the chase
floor be insulated using batt type insulation between
the floor joists.
Three examples of chase applications are shown in
Figure 20.
Figure 20
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.

EM SERIES WOODBURNING FIREPLACE
4-99 19 31316A
Materials for the Chase
The chase is constructed using framing materials
much the same as the walls in your home. A variety
of materials may be used including brick, stone,
veneer brick, or standard siding materials.
In constructing the chase, several factors must be
considered.
1. Maintain a 3/4" minimum air space around the
firebox.
2. Maintain a 2" air space around the chimney.
3. The chase top must be constructed of a non-
combustible material.
4. In cold climates a firestop spacer should be
installed in an insulated false ceiling at the 8 foot
level above the firebox assembly. This prevents
heat loss through the fireplace.
5. In cold climates, the walls of the chase should
be insulated to the level of the false ceiling as
shown in Figure 21. This will help prevent heat
loss from the home around and through the fire-
place.
Installing a Terminal Cap on a Chase
Enclosed Chimney
Construct a chase of desired materials maintaining a
minimum 2" air space around the chimney.
Figure 21
Chase Assembly
WARNING!
DETAIL INSTRUCTIONS FOR
INSTALLATION OF THE CHASE
TOP, STORM COLLAR AND TERMI-
NAL CAP ARE PACKAGED WITH
THESE PARTS. TO AVOID DANGER
OF FIRE, ALL INSTRUCTIONS MUST
BE STRICTLY FOLLOWED, INCLUD-
ING THE PROVISION OF AIR SPACE
CLEARANCE BETWEEN CHIMNEY
SYSTEM AND ENCLOSURE. TO
PROTECT AGAINST AGAINST THE
EFFECTS OF CORROSION ON
THOSE PARTS EXPOSED TO THE
WEATHER, WE RECOMMEND THAT
THE CHASE TOP AND TERMINAL
CAP BE PAINTED WITH A RUST
RESISTANT PAINT.
WARNING!
NEVER INSTALL A SINGLE WALL SLIP SEC-
TION OR SMOKE-PIPE IN A CHASE STRUC-
TURE. THE HIGHER TEMPERATURE OF
THIS SINGLE WALL PIPE MAY RADIATE
SUFFICIENT HEAT TO COMBUSTIBLE
CHASE MATERIALS TO CAUSE A FIRE.
Install the chimney sections up through the chase enclo-
sure. When using a round terminal cap (TR344), the
uppermost top flashing section of pipe must extend
above the top of the chase collar to allow installation of
the storm collar and terminal cap.
For installations utilizing a telescoping round terminal
cap (TR342), the uppermost chimney section must be
below the top of the chase top, but not more than 141⁄2"
below the top of the chase top flashing collar.
For installations utilizing a square terminal cap (ST375),
the last chimney section must not be more than 43⁄4"
below the chase top. See Figure 22.
When installing a TS345 Square Termination, the upper
most chimney section must be no less than 3” below the
top of the chase top or more than 2” above the top of the
chase top.
Attach the chase top (CT35) to the top of the chase.
Install the terminal cap, using the instructions provided
with it.

EM SERIES WOODBURNING FIREPLACE
Figure 22
Installing a Terminal Cap
4-99 20 31316A
OPERATING INSTRUCTIONS
NOTICE:
SAVE AND PASS THESE OPERAT-
ING INSTRUCTIONS AND THE
INSTALLATION INSTRUCTIONS TO
SUBSEQUENT 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.
CAUTION:
EDGES ARE SHARP.
HAND PROTECTION IS RECOM-
MENDED.
This fireplace is intended to operate as a supplemen-
tal heat source for a single room. It is not designed
to function as a primary heat source for a structure.
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 unit. Make
certain that installation and operation of the fireplace
system is in accordance with these instructions.
WARNING!
DO NOT OPERATE THIS FIREPLACE WITH
THE FLUE DAMPER IN THE CLOSED POSI-
TION. COMBUSTION PRODUCTS MUST
VENT UP THE CHIMNEY SYSTEM TO PRE-
VENT CARBON MONOXIDE POISONING,
AND TO PREVENT HOT COMBUSTION
GASES FROM CONTACTING AND OVER-
HEATING COMBUSTIBLE SURFACES.
FAILURE TO OPERATE THIS FIREPLACE
WITH THE DAMPER IN THE OPEN POSI-
TION MAY RESULT IN ASPHYXIATION OR
A STRUCTURE FIRE.
CAUTION:
FIREPLACE OPERATION DOES RE-
QUIRE AIR. DO NOT TAKE AIR
FROM OTHER FUEL BURNING
APPLIANCES WHICH CAN RESULT
IN IMPROPER VENTING (SMOK-
ING) OR AIR DILUTION. ALWAYS
PROVIDE ADEQUATE MAKE-UP
AIR.
It is extremely important that the fire be super-
vised whenever the fireplace is in use. It is also
recommended that an annual inspection be per-
formed 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.
INTENDED USAGE. This factory-built fire-
place 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 oper-
ating 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 full closed
position unless the unvented gas log has been
specifically tested and listed for use in this fire-
place by Underwriters Laboratories Inc. Use of
an unvented gas log heater in this factory-build
fireplace may create a fire hazard that can
result in a structure fire.