Heatilator • Novus B-Vent Series • 4055-188 • Rev. S • 3/13
28
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
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
13
13
Finishing
A. Mantel and Wall Projections
WARNING! Risk of Fire! Comply with all minimum clear-
ances as specifi ed. Framing closer than the minimums
listed must be constructed entirely of noncombustible
materials (i.e., steel studs, concrete board, etc.) Failure to
comply could cause fi re.
Figure 13.1 Minimum Vertical and Maximum Horizontal Dimensions of Combustibles
Mantels
Figure 13.2 Combustible Mantel Leg or Wall Projections (Accept-
able on both sides of opening)
Mantel Legs or Wall Projections
