Heat & Glo LifeStyles Collection • Montana US-CAN • 4039-156 Rev D • 10/08
23
B. Finishing Material
• Combustible
Material
Material which is made of or surfaced with wood,
compressed paper, plant
fi
bers, plastics, or any material
capable of igniting and burning, whether
fl
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.
• 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
fi
replace and facing to prevent cold air leaks.
Large gaps can be bridged with
fi
berglass rope gasket.
Only non-combustible materials may be used to cover the
black metal
fi
replace front.
14-3/8 in./36.5 cm
12 in.
30.5 cm
39
deg.
4 in./10.2 cm
BRICK
FRONT
FLUSH FRONT
12 in.
30.5 cm
9-3/4 in./24.8 cm
50
deg.
A
B
Cat
#
A
B
MONTANA-36 & 36H 36 in./91.4 cm 42 in./106.7 cm
MONTANA-42 & 42H 42 in./106.7 cm 48 in./121.9 cm
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
fi
re hazard.
Finishing materials must not interfere with:
• Air
fl
ow through grilles or louvers
• Operation of louvers or doors
• Access for service
WARNING
Fire Risk
Finish all edges and fronts to clearances and
speci
fi
cations.
• Metal
fi
replace front may be covered with
non-combustible material only.
• Do NOT overlap combustible materials onto
fi
replace front.
• Install combustible materials up to speci
fi
ed
clearances on top front and side edges.
• Seal joints between the
fi
nished wall and
fi
replace top and sides using only a 300° F
minimum sealant.
WARNING
C. Mantel
A combustible mantel may be positioned no lower than
12 in. (305 mm) above the top of the
fi
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
fi
replace can
be placed no closer than 6 in. (152 mm) from the top of the
fi
replace opening. See Figure 8.4. Combustible trim must
not cover the metal surfaces of the
fi
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
fi
replace opening. If you are us-
ing a decorative surround constructed of combustible ma-
terial, it must be located within the shaded area de
fi
ned in
Figure 8.5. Short stub walls are also acceptable if they are
contained within the shaded area.
E. Glass Doors
This
fi
replace has been tested and listed for use with doors
as speci
fi
ed in Section 12.B. Fireplace Components. Please
refer to the manual packed with each set of doors for instal-
lation instructions.
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
Figure 8.4 Mantel Speci
fi
cations
Fire Risk
• Maintain
clearances.
• Use only non-combustible material below
standoffs, material such as cement board is
acceptable.
WARNING
• Framing
or
fi
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.).
