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Heatilator • Caliber BV Series • 4040-262 • Rev M • 08/09 19
1 in. (25 mm) min.
to perpendicular wall
A
3-1/2 in. (89 mm) min.
from fireplace opening
to perpendicular wall
B
Mantel Leg or
Perpendicular Wall
Top of
Appliance
Drywall
A
B
Measured from top of hood (in inches)
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
5
5-1/2
6-1/4
7
7-3/4
8-1/2
9-1/4
10
10-3/4
11-1/2
12-1/4
13
13-3/4
14-1/2
15-1/4
16
30 in. minimum
to ceiling
D. Mantel and Wall Projections
Comply with all minimum clear-
ances as specied. Framing or nishing material closer
than the minimums listed must be constructed entirely
of noncombustible materials (i.e., steel studs, concrete
board, etc).
Figure 5.3 Minimum Vertical and Maximum Horizontal Dimensions of Combustibles
Mantels
Figure 5.4 Combustible Mantel Leg or Wall Projections
(Acceptable on both sides of opening)
Mantel Legs or Wall Projections