Heatilator • CI60 • 4013-031 Rev M • 10/06
26
B. Finishing Material
• Combustible
Material
Material which is made of or surfaced with wood,
compressed paper, plant
¿
bers, plastics, or any material
capable of igniting and burning, whether
À
ame proofed or
not, plastered or not plastered.
• 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 any combination thereof.
Materials that are reported as passing
ASTM E 136,
Standard Test Method for Behavior of Materials in a
Vertical Tube Furnace at 750° C
, shall be considered
non-combustible materials.
• Non-Combustible Sealant Material
Sealants which will not ignite and burn: Rutland, Inc.
Fireplace Mortar #63, Rutland 76R, Nuflex 304, GE
RTV106 or GE RTV116 (or equivalent).
After completing the framing and applying the facing material
(drywall) over the framing, a bead of non-combustible seal-
ant must be used to close off any gaps at the top and sides
between the
¿
replace and facing to prevent cold air leaks.
Large gaps can be bridged with
¿
berglass rope gasket.
Only non-combustible materials may be used to cover the
metal
¿
replace front.
E. Glass Doors
This
¿
replace has been tested and listed for use with doors
as speci
¿
ed in Section 12.B. Fireplace Components. Please
refer to the manual packed with each set of doors for instal-
lation instructions.
23-3/4 in.
(603 mm)
50°
12 in.
(305 mm)
36 in.
(914 mm)
44-1/2 in.*
(1130 mm*)
39°
4 in.
(102 mm)
BRICK
FRONT
FLUSH FRONT
12 in.
(305 mm)
19-3/4 in.
(502 mm)
*Outside to outside edges of fireplace (not framing).
Figure 8.5
Sidewalls/Surrounds
Fire Risk
Do NOT obstruct air inlet or outlet grilles.
Do NOT modify grilles.
• Modifying or covering grilles could cause
temperature rise and
¿
re hazard.
Finishing materials must not interfere with:
• Air
À
ow through grilles or louvers
• Operation of louvers or doors
• Access for service
WARNING
C. Mantel
A combustible mantel may be positioned no lower than
12 in. (305 mm) above the top of the
¿
replace opening. The
combustible mantel may have a maximum depth of 12 in.
(305 mm). Combustible trim pieces that project no more
than 1-1/2 in. (38 mm) from the face of the
¿
replace can be
placed no closer than 6 in. (152 mm) from the top of the
¿
re-
place opening. See Figure 8.4. Combustible trim must not
cover the black metal surfaces of the
¿
replace. This mantel
clearance is in accordance with
Section 7-3.3.3 of ANSI/
NFPA211
.
D. Sidewalls/Surrounds
Adjacent combustible side walls must be located a minimum
of 12 in. (305 mm) from the
¿
replace opening. If you are us-
ing a decorative surround constructed of combustible ma-
terial, it must be located within the shaded area de
¿
ned in
Figure 8.5. Short stub walls are also acceptable if they are
contained within the shaded area.
12 in.
(305 mm)
Min.
12 in. (305 mm)
Max.
Top of
Fireplace
Opening
Mantel
1-1/2 in. (38 mm) max.
6 in. (152 mm) Min.
Header
Standoff
Gas Knockout
Standoff
Figure 8.4
Mantel Speci
¿
cations
Fire Risk
• Maintain
clearances.
• Use only non-combustible material below
standoffs, material such as cement board is
acceptable.
WARNING
• 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.).
Fire Risk
Finish all edges and fronts to clearances and
speci
¿
cations.
WARNING
• Metal fireplace front may be covered with non-
combustible material only.
• Do NOT overlap combustible materials onto
¿
replace
front.
•
Install combustible materials up to speci
¿
ed clearances
on top front and side edges.
• Seal joints between the
¿
nished wall and
¿
replace top
and sides using only a 300° F minimum sealant.
¨
¨
