10
Heatilator • Caliber Multi-Sided B-Vent • 4002-094 Rev H • 11/07
C. Clearances
Measured from top of hood (in inches)
1-11
12
13
14
15
16
17
18
4-3/4
5-1/2
6-1/4
7
7-3/4
8-1/2
9-1/4
10
34-3/8 in. minimum
to ceiling
Figure 3.3 Clearances to Mantels or Other Combustibles Above
Appliance
0 in. min.
to perpendicular wall
A
2 in. (51 mm) min.
from fireplace opening
to perpendicular wall
B
48 in.
(1219 mm)
max.
Mantel Leg or
Perpendicular Wall
Top of
Appliance
Drywall
A
B
Figure 3.4 Clearances to Combustible Mantel Legs or Wall Projec-
tions (acceptable on both sides of opening)
Figure 3.2 Clearances to Combustibles
D. Mantel Projections
Fire Risk
• Comply with all minimum clearances to combustibles as speci
fi
ed.
• 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.).
Failure to comply may cause
fi
re.
WARNING
5/8 in.
drywall
lip
5/8 in.
drywall
lip
5/8 in.
drywall
lip
1/2 in.
NAILING
FLANGES
39-7/8 in.
*
22-3/4 in.*
41 in.
NAILING
FLANGES
5/8 in.
drywall
lip
41 in.
41 in.
GBFL36 SERIES
GBST36 SERIES
*
This dimension does not include
the thickness of the drywall.
47 in. min.
window
placement
42 in. min.
mantel
placement
Note: The GBCL/CR36 and GBIS36 Series
use the same framing dimensions.
Long side
of framing
to the front
Long side of
framing to front.
40-1/2 in.
24 in.
1/2 in.
1/2 in.
22-3/4 in.*
24 in.
47 in. min.
window
placement
34-3/8 in. (762 mm)
to ceiling
0 in.
TO FLOOR
1/2 in. (13 mm) to unfinished
side of appliance
(Except for the CH Series)
1/2 in. (13 mm) to
unfinished back
of appliance
(CL, CR and CH Series
appliances ONLY)
0 in. TO LEVEL
OF STANDOFFS
Note:
If the inside of the framed cavity is to be
fi
nished,
the framing dimensions
must
include the
fi
nished
surface. If drywall is to be attached to the rear wall, the
depth must be measured from the drywall surface.
¨