TM
Comfor
Flame
t
by FMI PRODUCTS, LLC
Wood burning Fireplace
oWner’S operaTion and inSTallaTion Manual
PFS
®
ICC-ES #ESR-2542
Model b42li-M
SAVE THIS BOOK
This book is valuable. In addition to instructing you
on how to install and maintain your appliance, it also
contains information that will enable you to obtain re-
placement parts or accessory items when needed. Keep
it with your other important papers.
This fireplace is approved for use as a wood burning
fireplace or for use with a vented gas log approved to
ANS Z21.60, Z21.84 standard or for use with a vent-free
gaslogheaterapprovedtoANSZ21.11.2standard.AFMI
PRODUCTS, LLC hood must be installed when using a
vent-free log heater (see Accessories, page 18).
This wood burning fireplace complies with UL127-
CAN/ULS-S610-M87 standard as a FACTORY BUILT
APPLIANCE.
FOR CANADA: The authority having jurisdiction (such
as the municipal building department, fire department,
etc.) should be contacted before installation to deter-
mine the need to obtain a permit.
INSTALLER: Leave this manual with the appliance.
CONSUMER: Retain this manual for future reference.
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SpeciFicaTionS
1" AIRSPACE
TO COMBUSTIBLE
MATERIAL
GAS LINE
KNOCK OUTS
RIGHT SIDE
0" TO
TOP SPACERS
NO COMBUSTIBLE
MATERIAL ON FACE
8.25"
7"
COMBUSTIBLE
WALL BOARD
3/4" AIR
SPACE
BACK
AND
GAS LINE
AIR KIT
KNOCK OUT
KNOCK OUTS
SIDES
LEFT SIDE
NOT LESS
THAN 14" TO
PERPENDICULAR
SIDEWALL
OUTSIDE AIR
(LEFT SIDE
ONLY)
10.375"
HEARTH
8.25"
EXTENSION
66" X 20"
0" TO
BOTTOM
12"
EACH SIDE
7"
13"
25.375"
28.5"
14.438"
1.375"
21.125"
14"
38.85"
0.625"
44"
ROUND TOP TERMINATION
1"
32"
37.5"
SQUARE CHASE-TOP
TERMINATION
33"
21.5"
6.5"
42"
44"
1.75"
1"
115386-01D
3
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Fireplace inSTallaTion
3. Set fireplace directly in front of this open-
SELECTING LOCATION
ing and slide unit back until nailing flanges
touch side framing.
To determine safest and most efficient location
for fireplace, you must take into consideration
the following guidelines:
4. Check level of fireplace and shim with
sheet metal if necessary.
1. Location must allow for proper clearances
(see Figures 1 and 2).
5. Before securing fireplace to prepared
framing, ember protector must be placed
between hearth extension (not included)
and under bottom front edge of fireplace
to protect against glowing embers falling
through. If fireplace is to be installed on
a raised platform, a Z-type ember protec-
tor (not included) must be fabricated to
fit your required platform height. Ember
protector should extend under fireplace a
minimum of 1 1/2". Ember protector should
be made of galvanized sheet metal (28
gauge minimum) to prevent corrosion.
2. Consider a location where fireplace will
not be affected by drafts, air conditioning
ducts, windows or doors.
3. A location that avoids cutting of joists or
roof rafters will make installation easier.
4. An outside air kit is available with this
fireplace (see Optional Outside Air Kit on
page 7).
MINIMUM CLEARANCE TO
COMBUSTIBLES
Back and sides of fireplace 3/4" minimum*
6. Using screws or nails, secure fireplace to
framing through flanges located on sides
of fireplace.
Floor**
0" minimum
Perpendicular wall to opening 14" minimum
Top spacers
0" minimum
Mantel clearances
see Mantels, page 6
Chimney outer pipe surface
* Not required at nailing flanges
** See step 2 of Framing
1" minimum
WARNING: Do not pack re-
quiredairspaceswithinsulation
or other materials.
37.625"
Minimum/Maximum Chimney Height
Minimum height of chimney, measured from
base of fireplace to flue gas outlet of termina-
tion, is 11.5 feet for straight flue or a flue with
one elbow set. Maximum distance between
elbows is 2 feet. For systems with two elbow
sets, minimum height is 22 feet. Maximum
height of any system is 50 feet. This measure-
ment includes fireplace, chimney sections and
height of termination assembly at level of flue
gas outlet (see Figure 18, page 11).
44.25"
22"
Figure 1 - Framing Dimensions
Maintain 3/4"
Clearance at
Sides and
Back of
15 7/8"
Fireplace
52 1/2"
22 1/2"
FRAMING
1. Frame opening for fireplace using dimen-
sions shown in Figures 1 and 2.
2. If fireplace is to be installed directly on
carpeting, tile (other than ceramic) or any
combustible material other than wood
flooring, fireplace must be installed upon
a metal or wood panel extending full width
and depth of fireplace.
3/4" Clearance Not
Required at Nailing Flanges
72 7/8"
Figure 2 - Corner Installation
4
115386-01D
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Fireplace inSTallaTion
Continued
HEARTH ExTENSION
Seal Gap
Fireplace Front
Ember Protector
A hearth extension projecting a minimum of
20" in front of and a minimum of 12" beyond
each side of fireplace opening is required to
protect combustible floor construction in front
of fireplace. Fabricate a hearth extension
using a material which meets the following
specifications: a layer of noncombustible,
inorganic material having a thermal conductiv-
ity of K=0.84 BTU IN/FT, HR. F (or less) at 1"
thick. For example, if material selected has
a K factor of 0.25, such as glass fiber, the
following formula would apply:
NO
Do Not Block Louver
Hearth
Extension
Fireplace Front
Elevated
Seal Gap
0.25 x 1.0" = 0.30" thickness required
0.84
Ember Protector
Thermal conductivity "K" of materials can be
obtained from manufacturer or supplier of
noncombustible material. If hearth extension
is to be covered, use noncombustible mate-
rial such as tile, slate, brick, concrete, metal,
glass, marble, stone, etc. Provide a means
to prevent hearth extension from shifting and
seal gap between fireplace frame and hearth
extension with a noncombustible material
(see Figure 3).
Hearth Extension, Circulating Modes
Seal Gap
Fireplace Front
Ember Protector
Fireplace Front
Raised Hearth
WARNING:Hearthextension
is to be installed only as shown
in Figure 3.
Ember Protector
Hearth
Extension
Fireplace Front
Elevated
Seal Gap
Ember Protector
Hearth Extension, Noncirculating Models
Figure 3 - Hearth Extension
115386-01D
5
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Fireplace inSTallaTion
Continued
MANTELS
FAN/BLOWER KIT ASSEMBLY
A mantel may be installed if desired (see Fan or blower kit is optional with this fireplace
Figure 4). Woodwork such as wood trims, (for circulating models only). Use of blowers
mantels or any other combustible material or fans other than those manufactured by
projecting from front face must not be placed FMI PRODUCTS, LLC voids warranty. Fan
within 12" of fireplace opening (and within 9" is operated by pressing rocker switch (see
of top louver opening). Combustible materi- Figure 6) in lower right hand corner of fireplace
als above 12" and projecting more than 1 1/2" face. Blower is operated by turning control
from fireplace must not be placed less than knob (not shown).
12" from top opening of fireplace (NFPA STD
211, Sec. 7-3.3.3).
Fan/blower kit electrical connections are
made through electrical cover plate on side
Mantels or any other combustible material of fireplace a shown in Figure 6.
may come up to side edge of black metal face
of fireplace if projection from front face falls
Sheet
Metal
Screws
within limits shown in Figure 5.
12 1/4" Ref.
Combustible
Material
Safe Zone For
Projection of
Combustible
Materials
6"
Ref.
Electrical
Cover
Plate
Rocker
Switch
Electrical
Bushing
33°
3" Nom.
Outer Wrapper
of Fireplace
Wire Nut (3x)
(Not Supplied)
*Note: Drawing
Not To Scale
Electrical
Housing
15"
Min.
Power Source Wiring
(Not Supplied)
1 1/2"
Max.
9"
To Power
Source
Min.
12"
Min.
Electrical Cover
Plate and
Electrical Bushing
Top of
Louvered
Opening
Upper Section
of Circulating
Fireplace
Receptacle
(Supplied)
Prewired Receptacle
and Ground
Fireplace Chassis
Ground
Fireplace Opening
Figure 4 - Mantel Clearances to
Combustible Material
Figure 6 - Fan Switch-Electrical Bushing
Wiring Instructions
1. Remove electrical cover plate with bush-
ing from fireplace by removing 2 sheet
metal screws as shown in Figure 6.
FIREBOX
Top View of Fireplace
2. Slide power source wiring through electri-
cal bushing opening and electrical cover
plate and make all necessary connec-
tions.
0.625" Max.
SAFE ZONE
8"
1"
33°
3. Slide all wiring connections in electrical
housing as shown in Figure 6.
Min. 12" from
Perpendicular Side Wall
4. Secure electrical cover plate with screws
previously removed.
Figure 5 - Side Mantel Clearance
Note: Electrical housing and cover plate have
sharp edges. Wear protective gloves.
6
115386-01D
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VenTing inSTallaTion
OPTIONAL OUTSIDE AIR KIT
WARNING: The opening in
collar around chimney at top of
fireplacemustnotbeobstructed.
Neveruseblowninsulationtofill
chimney enclosure.
(MODEL AK4/AK4F)
Installation of outside air kit should be per-
formed during rough framing of fireplace due
to the nature of it's location. Outside combus-
tion air is accessed through a vented crawl
space (AK4F) or through a sidewall (AK4).
See Figure 24 on page 15 for instruction of
operating air kit.
3
8
12 / "
Galvanized
Outer Pipe
CAUTION: Combustion air
inlet ducts shall not terminate
in attic space.
Hemmed
End
8" Stainless
Inner Pipe
The maximum height for the
air vent can not exceed 3 feet
below the flue gas outlet of the
termination.
LINEAL GAIN
DESCRIPTION
PART NO.
GAIN
Secure to Collars with Metal Tape, Screws
or Straps (Min. of 1/4" x 20" in size)
42"
Fireplace
37 1/2"
12-8DM
12-8HT
18-8DM
18-8HT
24-8DM
24-8HT
36-8DM
36-8HT
48-8DM
48-8HT
Pipe Section
Pipe Section
Pipe Section
Pipe Section
10 5/8"
16 5/8"
23 5/8"
34 5/8"
46 5/8"
Air Inlet
Location
Must Allow
For Bushes
or Snow
Pipe Section
RT-8DM
Round Termination
6 7/8"*
7 3/4"*
RTL-8DM Round Termination
Air Inlet
Round Termination
RTT-8DM
6 7/8" to
23 1/8"*
8 1/2" to
21 1/2"*
Eyebrow
Vented Crawl Space
Vent Hood
with Slip Section
(Check Local Codes
Required for
Round Termination
with Slip Section
Before Installing in a
Wall Installation
RTTL-8DM
Vented Crawl Space)
ET-8DM
Square Chase-Top
12"*
Figure 7 - Outside Air Kit
Square Chase-Top
with Mesh
ETO-8DM
12"*
CHIMNEY PIPE
Square Chase-Top
with Slip Section
Square Chase-Top
with Mesh & Slip
Section
7" to 15"*
ETL-8DM
FMI PRODUCTS, LLC chimney system
consists of 12", 18", 24", 36" and 48" snap-
lock, double-wall pipe segments, planned
for maximum adaptability to individual site
requirements. Actual lengths gained after fit-
ting overlaps must be taken into consideration
(lineal gain) and are given in lineal gain chart
(see Figure 8).
12" to
ETLO-8DM
25 1/2"*
* The lineal gain for the terminations is
measured to the flue gas outlet height.
Figure 8 - Lineal Gain
Lineal gain is actual measurable length of a
part after two or more parts are connected.
115386-01D
7
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VenTing inSTallaTion
Continued
installing double wall snap-lock chimney to-
ASSEMBLY AND INSTALLATION OF
DOUBLE WALL CHIMNEY SYSTEM
gether, it is important to assure joint between
chimney sections is locked. Check by pulling
chimney upward after locking. Chimney will
not come apart if properly locked. It is not
necessary to add screws to keep chimney to-
gether (exception - see Figure 11, page 9).
Each double wall chimney section consists
of a galvanized outer pipe, a stainless steel
inner flue pipe and a wire spacer. Pipe sec-
tions must be assembled independently as
chimney is installed. When connecting chim-
ney directly to fireplace, inner flue pipe sec-
tion must be installed first with lanced side
up. Outer pipe section can then be installed
over flue pipe section with hemmed end up.
Press down on each pipe section until lances
securely engage hem on fireplace starter.
Wire will assure proper spacing between
inner and outer pipe sections.
USING ELBOW OFFSETS (30E-8DM)
1. To achieve desired offset, you may install
combinations of 12", 18", 24", 36" and
48" length of double wall pipe (see offset
chart, page 7, and Figure 9).
Note: For systems with 2 elbow sets, mini-
mum height is 22 feet. Maximum height
for any system is 50 feet.
Note: For Canada, use chimney parts des-
ignated HT.
2. Chimney weight above offset rests on
return elbow. Straps must be securely
nailed to rafters or joists (see Figure 10,
details A and B, page 9).
Opening in collar around
chimneyattopoffireplacemust
not be obstructed. Never use
blown insulation to fill chimney
enclosure.
3. Maximum length of pipe between supports
(return elbow or 12S-8DM) is 6' of angle
run. Maximum of two 6' angle run sections
per chimney system (see Figure 9).
4. All pipe connections between offset and
return must be secured with two screws
on outer pipe only (see Figure 11, page
9). Do not penetrate inner stainless.
Continue to assemble chimney sections as
outlined, making sure that both inner and
outer pipe sections are locked together. When
Return
Elbow
Return
Elbow
Return
Elbow
Offset
Offset
Elbow
Elbow
6' Max.
6' Max.
Ceiling
Support Pipe
12S-8DM
Return
Elbow
6' Max.
6' Max.
Offset
Elbow
Offset
Elbow
Return
Elbow
6' Max.
6' Max.
Offset
Elbow
A
B
C
Figure 9 - Typical Offset Installation
8
115386-01D
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VenTing inSTallaTion
Continued
See Detail A
Ceiling Support
Pipe 12S-8DM
2" Min.
See Detail B
Straps
Straps
Straps
Straps
Detail A
Return Elbow
Detail B
Angle
Firestop
Figure 10 - Ceiling Support Pipe 12S-8DM
OFFSET RISE
CHIMNEY LENGTH
A
B
48" 36" 24" 18" 12"
4 3/8" 16 3/8"
9 3/4" 25 1/2"
12 3/4" 30 3/4"
ELBOW SET ONLY
1
1
15"
18"
34 3/4"
1
40"
1
1
1
1
1
1
1
1
1
1
1
1
1
21 1/4" 46 1/4"
23 3/4" 49 1/4"
27 3/4" 56 3/4"
1
1
1
1
30"
33"
60 3/4"
66"
Screws
1
1
B
36"
71"
75"
38 1/4"
2
1
2
41 1/4" 80 1/4"
1
1
45"
46 3/4" 89 1/2"
51" 97"
86 3/4"
1
1
1
2
53 1/4" 101"
56 1/4" 106 1/4"
59 1/4" 111 1/2"
61 3/4" 115 1/2"
64 3/4" 120 3/4"
68 1/4" 127"
2
1
2
2
1
2
1
1
A
1
2
1
70"
130"
1
1
74 1/4" 137 1/2"
76 3/4" 141 1/2"
79 3/4" 146 3/4"
2
2
4
OFFSET CHART (22-50 FT. SYSTEM HEIGHT)
Figure 11 - Elbow Offset
115386-01D
9
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VenTing inSTallaTion
Continued
4. Remove shingles around opening mea-
FIRESTOP SPACERS (FS-8DM)
sured. Cut out this section.
Firestop spacers are required at each point
where chimney penetrates a floor space.
Their purpose is to establish and maintain
required clearance between chimney and
combustible materials. When pipe passes
through a framed opening into a living space
above, firestop must be placed onto ceiling
from below as shown in Figure 12.
5. Add next sections of pipe until end
penetrates roof line. Check to see that
proper clearances are maintained. Extend
chimney by adding sections of double wall
pipe until pipe is minimum of 30" above
highest point of roof cutout. Termination
and chimney must extend a minimum of
36" above highest point where it passes
through roof.
They also provide complete separation from
one floor space to another or attic space as
required by most codes. When double wall
pipe passes through a framed opening into
an attic space, firestop must be placed into
an attic floor as shown in Figure 13.
Minimum Measurements
16 3/8"
(48.3 cm)
30"
(76.2 cm)
2"
If area above is a living space, install
firestop below framed hole.
(5.1
cm)
2"
(5.1 cm)
2"
(5.1
cm)
Opening "A"
Figure 12 - Firestop Spacer with Living
Space Above Ceiling
Pitch
Slope Opening Used Flashing
If area above is an attic or insulated area,
install firestop above framed hole.
"A" Max.
15"
16 1/8"
20 3/8"
Model No.
V6F-8DM
V6F-8DM
V12F-8DM
Flat
0-6/12
6/12- 12/12 45.0°
0°
26.6°
Figure 14 - Roof Opening Measurements
FLASHING INSTALLATION (V6F-8DM
OR V12F-8DM)
Figure 13 - Firestop Spacer with Attic
Space Above Ceiling
Determine flashing to be used with roof open-
ing chart. Slide flashing over pipe until base is
flat against roof. Replace as many shingles as
needed to cover exposed area and flashing
base. Secure in position by nailing through
shingles (see Figure 15, page 11). DO NOT
NAIL THROUGH FLASHING CONE.
PENETRATING ROOF
Tomaintaina2"clearancetopipeonaroofwith
a pitch, a rectangular opening must be cut.
1. Determine center point where pipe will
penetrate the roof.
2. Determine center point of the roof. Pitch
is the distance the roof drops over a given
span, usually 12".A6/12 pitch means that
the roof drops 6" for each 12" measure
horizontally down from roof rafters.
Installing Flashing on a Metal Roof
When installing flashing on a metal roof, it
is required that putty tape be used between
flashing and roof. Flashing must be secured
to roof using #8 x 3/4" screws and then sealed
with roof coating to prevent leakage through
screw holes. A roof coating must also be ap-
plied around perimeter of flashing to provide
a proper seal.
3. Use roof opening chart (Figure 14) to
determine correct opening length and
flashing required.
10
115386-01D
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VenTing inSTallaTion
Continued
Overlap
Shingles Top
and Sides Only
Terminations with 16" slip pipe sections are
Storm Collar
Flashing
Cone
available. RTT-8DM and RTTL-8DM are
approved for flashing installations. When
needed, these adjustable terminations may
be used in combination with pipe assembly
to achieve correct chimney height.
Nail Only
Outer
Perimeter
of Flashing
Note: In the rare instance there is a problem
with side driven rain or wind or chimney is
not drafting properly, an ADS-8DM (Anti-Draft
Shield) can be used with round terminations.
Level of Flue
Gas Outlet
RTL-8DM
Attach Bracket
Tabs to
Outer Pipe
(3 Places)
Secure with
Screws
Underlap Shingles
at Bottom
Flue Pipe of
RTL-8DM
Inside Inner
Pipe of
Figure 15 - Flashing Installation
Storm Collar Installation (SC1 or SC2)
Place storm collar over pipe and slide down
until it is snug against open edge of flashing
(see Figure 16). Use SC1 for all round ter-
minations and SC2 for all terminations with
slip sections. Apply waterproof caulk around
perimeter of collar to provide a proper seal.
Chimney
Overlap
Shingles Top
and Sides
Caulk
Collar
Flashing
Chimney
Pipe
Waterproof
Caulk
Storm
Collar
Flashing
Underlap Shingles
Bottom Only
Figure 17 - Termination
CHASE INSTALLATIONS
Instructions for chase installations are includ-
ed with chase style termination chosen. In a
multiple chase installation, be sure to provide
adequate distance between terminations to
prevent smoke spillage from one termination
to another. We suggest that terminations be
separated at least 24", center to center and
stacked at a vertical height difference of 18"
(see Figure 18).
Figure 16 - Storm Collar
Terminations/Spark Arrestor
Fireplace system must be terminated with
listed round top or chase terminations. In any
case, refer to installation instructions supplied
with termination. Terminations approved for
this fireplace are RT-8DM and RTL-8DM that
can be used for flashing or chase and ET-
8DM, ETO-8DM, ETL-8DM and ETLO-8DM
for chase style termination only. Figure 17
shows an RTL-8DM round top termination.
Note: If a decorative shroud is to be installed,
contact manufacturer for specifications.
CAUTION: Do not seal open-
ingsontherooftopflashing.Fol-
low the installation instructions
provided with the termination
being used.
18" MIN. TYP
.
24" MIN.
24" MIN.
Figure 18 - Multiple Chase Installation
115386-01D
11
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VenTing inSTallaTion
Continued
10 FOOT RULE
FINISHING FIREPLACE
All flue gas outlet chimney terminations must Combustible materials, such as wallboard,
extend a minimum of 3 feet in height above gypsum board, sheet rock, drywall, plywood,
highest point where it passes through roof and etc., may make direct contact with sides and
must be at least 2 feet above highest point of top around fireplace face. It is important that
the roof that is within a horizontal distance of combustible materials do not overlap face
10 feet (see Figure 19).
itself. Brick, glass, tile or other noncombustible
materials may overlap front face provided
they do not obstruct essential openings such
as louvered slots. When overlapping with
a noncombustible facing material, use only
noncombustible mortar or adhesive.
Level of
Flue Gas
Outlet
10'
10'
2' Min.
3' Min.
2' Min.
3' Min.
Figure 19 - 10 Foot Rule
EFFECTIVE HEIGHT
EFFECTIVE HEIGHT
OF TERMINATION CAP OF TERMINATION CAP
MIN. HEIGHT
OF 22 FT. (WITH
2 ELBOW SETS)
MAX. HEIGHT OF
50 FT.
MAX. HEIGHT
50 FT.
(ANY SYSTEM)
EFFECTIVE HEIGHT
EFFECTIVE HEIGHT
OF TERMINATION CAP OF TERMINATION CAP
14.5 FT.
MINIMUM
HEIGHT
14.5 FT.
MINIMUM
HEIGHT
UP TO
6FT. MAX.
UP TO
6FT. MAX.
30E-8DM
30E-8DM
Figure 20 - Typical Residential Installations
12
115386-01D
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opTional gaS line inSTallaTion
Gas line hook up should be done by your Note: A FMI PRODUCTS, LLC hood must be
supplier or a qualified service person.
installed when using an unvented gas log set
(see Accessories on page 18).
Note: Before you proceed, make sure your
gas supply is turned off.
WARNING: Do not operate an
unvented gas log set in this fire-
place with chimney removed.
Use only a 1/2" black iron pipe and appropri-
ate fittings.
1. Remove knockout indentation on refracto-
ry or firebrick wall located above refractory
hearth floor. Knockout indentation must
be firmly tapped with any solid object,
such as a 1/2" dowel, until it is released.
Remove fragmented portions of refractory
(see Figure 21).
If you install a decorative gas appliance (vent-
ed gas log), decorative gas appliance must
comply with the Standard for Decorative Gas
Appliance for Installation in Solid Fuel Burning
Fireplaces, ANS Z21.60, Z21.84 or RG 2-72
and shall also be installed in accordance with
the National Fuel Gas Code, ANSI 7223NFPA
54 latest edition.
2. Remove gas line cover plate located on
either side of fireplace and pull out insu-
lation from gas line conduit sleeve. Save
insulation for reuse.
WARNING: To avoid the risk
of damaging fireplace materials
andincreasingtheriskofspread-
ing a fire, do not use fireplace to
cook or warm food.
3. Run a 1/2" black iron gas line into fire-
place through rear at gas line conduit
sleeve (if using a raised platform, add
height). Provide sufficient gas line into
fireplace chamber for fitting connection
(see Figure 22).
Outside of
Fireplace
Side
Note: Secure incoming gas line to wood
framing to provide rigidity for threaded
end.
Firebrick
Finished
Side
Gas Line
Conduit
4. Repack insulation around gas line and into
sleeve opening. Seal any gaps between
gas line and refractory knockout hole with
refractory cement or commercial furnace
cement. Install gas appliance or cap off
gas line if desired.
1/2" Dowel
Insulation
Gas
Conduit
Cover
Refractory
Knockout
Plug
CAUTION:Allgaspipingand
connections must be tested for
leaks after installation is com-
pleted. After ensuring that gas
valveison,applysoapandwater
solution to all connections and
joints. Bubbles forming show a
leak. Correct all leaks at once.
DO NOT USE AN OPEN FLAME
FOR LEAK TESTING AND DO
NOTOPERATEANYAPPLIANCE
IF A LEAK IS DETECTED. LEAK
TESTING SHOULD BE DONE
BY A QUALIFIED SERVICE
PERSON.
Figure 21 - Gas Line Knockout
Outside of
Fireplace
Side
Firebrick
Finished
Side
Incoming
1/2" Black
Iron Pipe
Gas
Line
Conduit
Seal
Opening
with
Refractory
Cement
Repack
Insulation
Provide Enough Threaded
End for Fitting Connection
Figure 22 - Gas Line Installation
115386-01D
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opTional gaS line inSTallaTion
Continued
WARNING: If the fireplace
has been used for wood burn-
ing, firebox and chimney must
becleanedofsoot,creosoteand
ashes be a qualified chimney
cleaner. Creosote will ignite if
heavily heated.
WARNING: When using
a decorative vented gas log,
damper must be removed or
permanentlylockedinfullyopen
position and glass doors must
be in fully open position.
operaTion and MainTenance
GLASS DOORS
Glass doors are optional with this fireplace.
When fireplace is in operation, doors must be
fully opened or fully closed position only or a
fire hazard may be created (see Figure 23).
Doors Fully Closed
Fireplace Front
A fireplace equipped with glass doors oper-
ates much differently than a fireplace with an
open front. A fireplace with glass doors has a
limited amount of air for combustion. Exces-
sive heat within fireplace can result if too large
a fire is built or if combustion air gate is not
completely open.
The following tips should be used to assure
that both fireplace and glass door retain
their beauty and function properly. Both the
flue damper and glass doors must be fully
opened before starting a fire. This will provide
sufficient combustion air and maintain safe
temperatures in firebox.
Doors Fully Opened
Fireplace Front
Figure 23 - Glass Doors
Cleaning Glass
IMPORTANT: The glass must be allowed
to warm slowly and evenly. Tempered glass
will withstand a gradual temperature rise to
550° F, which is more than a normal fire will
generate. Such materials as pitch/wax laden
logs, very dry mill end lumber and large
amounts of paper or cardboard boxes can
create an excessively hot fire and should not
be burned in this fireplace. Always keep fire
back from doors and never allow flames to
contact glass.
Clean glass with any commercial glass
cleaner or soap and water. Do not use any
abrasive material to clean the glass. Do not
clean glass with any cool water if glass is still
hot from fire and smoke.
A gas line or gas log lighter may be installed
for the purpose of installing a vented or vent-
free decorative gas appliance incorporating an
automatic shutoff device and complying with
the Standard for Decorative Gas Appliances
for Installation in Vented Fireplaces, ANSI
Z21.60 or American Gas Association draft
requirements for Gas Fired Log Lighters for
Wood Burning Fireplaces, Draft NO. 4 dated
August, 1993.
WARNING: Fireplaces
equipped with glass doors
should be operated only with
doorsfullyopenedordoorsfully
closed.Doors,ifleftpartlyopen,
may draw gas and flame out of
the fireplace opening creating
risks of both fire and smoke.
If you wish to install an unvented (vent-free)
gas log set, only unvented gas log sets which
have been found to comply with the standard
for unvented room heaters,ANSI Z21.11.2 are
to be installed in this fireplace.
14
115386-01D
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operaTion and MainTenance
Continued
DAMPER HANDLE OPERATION
Damper
Handle
Damper handle, which opens and closes
damper blade, is located inside firebox at
center towards back wall (see Figure 24).
Pushing handle back into keyway slot will
free damper blade to automatically open.
To close, push handle back into keyhole slot
then pull down and forward to lock it in place
(see Figure 25).
WARNING: Risk of fire! Re-
placegratewithFMIPRODUCTS,
LLC model 109910-01 only. This
gratehasbeendesignedtokeep
the operation of your fireplace
safe and efficient.
Figure 24 - Damper Handle Location
Damper
Weight
For further operating guidelines, instruc-
tions and warranty information, please re-
fer to your homeowner's guide or contact
your authorized dealer.
3
2
2
3
1
1
To Close Damper
To Open Damper
Figure 25 - Damper Rod
Technical SerVice
You may have further questions about You can also visit FMI PRODUCTS, LLC’s
If so, contact FMI PRODUCTS, LLC at
1-866-328-4537. When calling please have
your model and serial numbers of your
heater ready.
115386-01D
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parTS
WOOD BURNING FIREPLACE MODEL B42LI-M
20
5
21
1
2
18
3
19
4
17
25
28
12
29
11
6
10
14
7
26
13
16
24
15
22
8
9
30
23
27
16
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parTS
WOOD BURNING FIREPLACE MODEL B42LI-M
This list contains replaceable parts used in your fireplace. When ordering parts, see Replace-
ment Parts on page 18 of this manual.
KEY
NO. PART NO.
DESCRIPTION
Insulation Pan
Air Separator
Firebox Top
QTY.
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
1
1
4
1
1
2
2
1
2
2
1
4
2
1
2
3
4
5
6
7
8
9
**
**
**
108302-01 Air Deflector
**
**
Wrapper Top
Firebox Wrapper
108304-01 Outer Wrapper/Insulation Assembly
**
**
Firebox Floor
Wrapper Bottom
10 108298-02 Front Face Weldment
11 see page 18 Left Side Brick Liner
12 see page 18 Rear Brick Liner
13 see page 18 Right Side Brick Liner
14 see page 18 Bottom Brick Liner
15 see page 18 Front Bottom Brick Liner
16 21198
17 20027
18 109870-01 Circulation Plate
19 21366
20 20280
21 20023
22 20088
23 11418
24 20090
25 107001-02 Wood Burning Grate
26 106539-02 Grate Retainers
27 108424-01 Screen
Blower Access Plate
Refractory Retainer
Insulation Retainer
Top Standoff
Chimney Starter Collar
Door Stop
Push On Nut
Spring Clip
28
**
Side Damper Weldment
29 107128-01 Gas Conduit
30 108780-01 Screen Rod
PARTS AVAILABLE - NOT SHOWN
110037-01 Electrical Duct Assembly
1
** Not a field replaceable part
115386-01D
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replaceMenT parTS
EMBER PROTECTOR 20093
STANDARD BRICK LINER
Left - 106971-01
Right - 106970-01
Rear - 108310-01
Bottom Rear 108312-01
Bottom Front 108311-01
acceSSorieS
DOUBLE WALL PIPE
12-8DM 12-8HT
18-8DM 18-8-HT
24-8DM 24-8HT
36-8DM 36-8HT
48-8DM 48-8HT
ADjUSTABLE HOOD
Antique Brass Finish - GA6053
Black Painted Finish - GA6050
Required when installing a vent-free gas log
in this fireplace.
ROOF FLASHING
0 TO 6/12 PITCH - V6F-8DM
6/12 TO 12/12 PITCH - V12F-8DM
BI-FOLD GLASS DOOR
BDB42 - Black
BDB42B - Brushed Brass
BDB42P - Platinum
ANTI-DRAFT SHIELD
(Round Top Termination Only)
ADS-8DM
STORM COLLAR
SC1-1 For RT-8DM and RTL-8DM
SC2-1 For RTT-8DM and RTTL-8DM
30° OFFSET AND RETURN
30E-8DM
18
115386-01D
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acceSSorieS
Continued
FIRESTOP SPACER
FS-8DM
OUTSIDE AIR KIT FOR SIDE WALL
INSTALLATION - AK4
FAN KIT - BK3
OUTSIDE AIR KIT FOR FLOOR
INSTALLATION
AK4F
BLOWER KIT - BK
SQUARE CHASE-TOP
TERMINATION
ET-8DM, ETO-8DM
ROUND TOP TERMINATIONS
RT-8DM, RTL-8DM
ECONO-TOP TERMINATION WITH
SLIP SECTION
ETL-8DM, ETLO-8DM
ROUND TOP TERMINATIONS WITH
SLIP SECTION
RTT-8DM, RTTL-8DM
115386-01D
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2701 S. Harbor Blvd.
Santa Ana, CA 92704
1-866-328-4537
115386-01
Rev. D
06/10
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