NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
Figure 3
Carefully consider the position of the fireplace
opening with respect to the location of adjacent
or nearby stairwells, bath or kitchen exhaust
fans and/or return air registers for forced air
furnaces/air conditioners that could cause a
smoking fireplace condition if the house is
tightly insulated.
If there is a continuous perpendicular side wall
closer than 18" (457 mm) from the nearest side
of the fireplace opening, it must be protected
with a 40" x 40" x ¹⁄₂" (1016 mm x 1016 mm x 13
mm) wall shield constructed of millboard or a
durable noncombustible material with equal or
greater insulating value than .84k (see page
16). A continuous perpendicular side wall can-
not be closer than 12" (305 mm) from the
fireplace opening under any circumstances,
even if protected.
ASSEMBLY STEPS
Note: The following steps represent the normal
sequence of installation. Each installation is
unique, however, and might require a different
sequence.
1. Position firebox prior to framing or into
prepared framing.
2. Install chimney air kit (Canada only).
3. Install the chimney system.
4. Install optional outside combustion air kit.
5. Field wire main power supply to fireplace for
fan kit for Model TMC-4500. (Electrical connec-
tions should only be performed by an experi-
enced, licensed/certified tradesman.)
6. Plumb gas line if a decorative gas appliance
will be used. (Gas connections should only be
performed by an experienced, licensed/certi-
fied tradesman.)
CHIMNEY HEIGHT
The total height of your TM or TMC fireplace
system from the surface the fireplace rests on
to the chimney top must not exceed 80' (24.4m)
and must also meet minimum height require-
ments. Refer to the minimum system height
chart.
Minimum System Height
TM-4500
TMC-4500
Vertical 16' 0"
Installation (4.8 m)
One 18' 6"
Offset (5.6 m)
Two 22' 0"
Offsets (6.7 m)
CHASE ENCLOSURE
A chase is a vertical box-like structure con-
structed to surround the fireplace and chimney.
Refer to
Figure 2
for a typical chase configura-
tion. As with all chimney installations, avoid
overhead obstructions such as trees, power
lines, etc. A chase should be constructed and
insulated just like any outside wall. In a cold
climate, we recommend the base of the chase
should also be insulated between the solid
continuous floor beneath the fireplace and the
chase bottom. Chase insulation in a cold cli-
mate installation is not required for safety.
ASSEMBLY OUTLINE
Before You Start
Check your inventory list to be sure you have all
the necessary parts supplied in good usable
condition. Check also for any concealed dam-
age.
Check the operation of the damper. The flue
damper handle extends down from the inside
top of the fireplace; push in to close, pull out to
open — takes firm pressure to lock closed.
LOCATION OF FIREPLACE
Carefully select the proper location for heat
circulation, aesthetics, chimney obstructions
and clearance to side wall(s). With proper pre-
planning, a slight adjustment of a few inches
can save considerable time and expense later
during construction and assembly (
Figure 3
).
Figure 2
WARNING: IF INSULATION IS USED, THE
FIREPLACE MUST NOT BE PLACED
AGAINST IT. INSULATION OR VAPOR
BARRIERS, IF USED, MUST BE SECURED
TO ASSURE INSULATION AND VAPOR
BARRIERS REMAIN IN PLACE.
WARNING: DO NOT PACK OR FILL RE-
QUIRED AIR SPACES WITH INSULATION
OR OTHER MATERIAL. NO MATERIAL OF
ANY KIND IS ALLOWED IN THESE AREAS.
Note: Do not insulate the chase cavity with
blown or fill type insulation materials.
Note: Local codes may not require firestopping
at the ceiling levels for outside chase installa-
tions. However, it is recommended for safety
and the reduction of heat loss.
Insulate Joists
Same as Ceiling
Draft Stops
10FS-2 Firestop
TF10-CTDT
Termination
Note: Non-
Combustible
Chase
Flashing
Must be
Used to
Cover
Chase
Opening
Optional
Insulation
in Outside
Walls of
Chase
Solid
Continuous
Surface
Outside
Base
Insulation
(Thermal Barrier)
8'
(2.4m)
Level
Hearth
Hearth
Optional
Outside
Chase
4
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