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Outside combustion air ducting may be run
upwards or vertically through framing and ceil-
ing joists, with the hood installed through an
outside wall and 3' (914 mm) below the termi-
nation. Ducting may also be run downward
through floor joists and under the home to a
ventilated crawlspace not considered part of
the living area of the home.
Note: Do not terminate combustion air kit in
attic space under any circumstances.
FTF10-TMS Termination Shroud
An optional termination shroud is available to
partially conceal the FTF10-CTDTM when in-
stalled on a chase. Model FTF10-TMS is adjust-
able for chases measuring a minimum of 27" x
27" (686 mm x 686 mm) up to a maximum of
40 " x 40 " (1029 mm x 1029 mm). Consult
the FTF10-TMS installation instruction for spe-
cific installation information.
Glass Doors
If glass doors are to be installed on these
fireplaces, refer to specific installation instruc-
tions packed with the glass doors. Use only the
doors that are listed for use with these fire-
places. Use of other non-listed glass door on
these fireplaces may constitute a potential fire
hazard and is not recommended.
CAUTION: CERTAIN GLASS DOORS OVER-
LAP THE BLACK METAL FACING OF THE FIRE-
PLACE. IF THE FIREPLACE HAS BEEN FACED
WITH NONCOMBUSTIBLE MATERIALS,
THERE MIGHT NOT BE SUFFICIENT CLEAR-
ANCE TO INSTALL THE GLASS DOORS OF
YOUR CHOICE. ENSURE ADEQUATE CLEAR-
ANCE IS MAINTAINED AT ALL TIMES SO AS
NOT TO INTERFERE WITH THE INSTALLA-
TION AND OPERATION OF GLASS DOORS.
GAS LINE CONNECTION
TM-4500 Series fireplaces have been approved
to accept a " (13 mm) gas line for an approved
gas appliance. Always have the appliance in-
stalled by a qualified, licensed plumber in ac-
cordance with all local building codes. The gas
line may enter either side of the fireplace.
CAUTION: PLUMBING CONNECTIONS SHOULD
ONLY BE PERFORMED BY A QUALIFIED, LI-
CENSED PLUMBER. MAIN GAS SUPPLY MUST
BE OFF WHEN PLUMBING GAS LINE TO FIRE-
PLACE OR PERFORMING SERVICE.
If you're installing a gas line, connect it before the
fireplace is framed and enclosed in the finished
wall. The gas knockout is determined by a 1 "
(29 mm) round indentation located at the bottom
and slightly off center in the side refractories.
THE KNOCKOUT IS ALWAYS REMOVED FROM
INSIDE THE FIREPLACE. DO NOT REMOVE THE
KNOCKOUT UNLESS YOU ARE INSTALLING A
GAS LINE. If removal is attempted from the outer
wrapper, side-refractory damage may occur.
With a medium-sized hammer, lightly tap the
surface of the indentation. The refractory mate-
rial is very thin in this area and is easily removed.
Once a small hole has been made, continue
tapping until you have reached sufficient diam-
eter for the gas line to fit through. The entire
knockout does not have to be removed. Remove
insulation in the gas line channel.
Install a
" (13 mm) gas supply line through
fireplace wall for connection to a decorative gas
appliance inside the firebox. Outside, the gas
supply line connects to a gas shut-off valve
recessed flush into the wall or floor. The valve
should be controlled by a removable valve key
for safety.
Always plumb gas line installation per local
codes. Check all connections with soap suds;
leaks will bubble. Never test any gas line con-
nection with a match or open flame.
IMPORTANT: RE-PACK INSULATION MATE-
RIAL IN SQUARE HOLE AROUND GAS LINE;
INTERIOR AND EXTERIOR, TO SEAL.
This provision is intended only for connection
to a decorative gas appliance incorporating an
automatic shut-off device and complying with
the standard for Decorative Gas Appliances for
installation in vented fireplaces, ANSI Z21.60.
Install in accordance with the National Fuel Gas
Code, ANSI Z223.1. This complies with the
revised U.L. 127 standard.
CAUTION: WHEN USING THE DECORATIVE
GAS APPLIANCE, THE FIREPLACE DAMPER
MUST BE SET IN THE FULLY OPEN POSITION.
Vent Free Appliances
These units have been tested and approved to
ANSI/IAS/AGA Z21.11.2 for use with unvented
gas appliances and complies with the stan-
dard for Factory-Built fireplaces, UL 127.
The unit has been tested for use with any
unvented gas log sets having a maximum rating
of 40,000 BTU. The minimum mantle configu-
rations are outlined in Figures 45 and 46 .
These fireplaces have been marked with a
maximum rating of 40,000 BTU to assure that
homeowners do not exceed the allowable lim-
its for all allowed installations of mantles.
NEVER INSTALL AN UNVENTED GAS LOG
SET WITH A BTU GREATER THAN 40,000.
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
COLD CLIMATE INSULATION
If you live in a cold climate, it is especially
important to seal all cracks around the fireplace
opening with noncombustible material and
wherever cold air could enter the room. Sur-
rounding materials must be caulked where it
meets the black metal facing of the fireplace to
avoid cold air intrusion. Use noncombustible
caulking material only on fireplace facing to
seal. Also, the outside air inlet duct should be
wrapped with noncombustible insulation to
minimize the formation of condensation. Do not
place insulation materials against chimney sec-
tions.
Note: A 2" (51 mm) air space must be preserved
for all combustible materials extending for any
continuous length adjacent to the chimney.
It is especially important to insulate between
the studs of an outside chase cavity and under
the floor if the floor is above ground level. Do
not place insulation directly against the fire-
place or chimney system
FIREPLACE FINISHES
Mantels and Trim
In Canada, the minimum height for a combus-
tible mantel is 24" (610 mm) above the fire-
place opening. Figure 45 shows typical Cana-
dian installation. In installations other than
Canada, combustible mantels and trim may be
installed 12" (305 mm) above the fireplace
opening as per NFPA 211; Section 7-2.3.3. and
Figure 46 . If a mantel is of a noncombustible
material, it is exempt from these requirements
as long as it does not interfere with the instal-
lation or operation of glass doors.
Finished
Combustible
Wall
Mantel
8" Max.
(203mm)
24" Min.
(610mm)
Facing
Flush
Fireplace
Opening
Canadian Installation
Figure 45
Noncombustible
Wall Covering
Spacer
15
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