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6 6
Termination Locations
A. Vent Termination Minimum Clearances
WARNING
Fire Risk.
Maintain vent clearance to combustibles as
specifi ed.
•
DO NOT pack air space with insulation
or other materials.
Failure to keep insulation or other materials away
from vent pipe may cause overheating and fi re.
(2.44 m)
Lowest
Discharge
Opening
Termination
Cap
Storm Collar
Roof
Flashing
Roof Pitch
H (Min.) Ft.
Flat to 6/12
1.0*
Over 6/12 to 7/12
1.25*
Over 7/12 to 8/12
1.5*
Over 8/12 to 9/12
2.0*
Over 9/12 to 10/12
2.5
Over 10/12 to 11/12
3.25
* 3 ft. minimum in snow regions
Figure 6.1
Minimum Height From Roof To Lowest Discharge
Opening
8 ft
Vertical
wall
X
12
Roof Pitch
is X / 12
H (min.) - Minimum height
from roof to lowest
discharge opening.
Roof Pitch
H (Min.) Ft.
Over 11/12 to 12/12
Over 12/12 to 14/12
Over 14/12 to 16/12
Over 16/12 to 18/12
Over 18/12 to 20/12
Over 20/12 to 21/12
Heatilator • Caliber Mesh BV Series • 4040-848 Rev G • 10/08
Gas
Termination
Termination Caps Staggered Height
A Gas Termination Wood or Fuel Oil Termination
B
6 in.
Wood, Gas or
Fuel Oil
Termination
4.0
5.0
6.0
7.0
7.5
8.0
Termination Caps Same Height
* If using decorative cap cover(s), this distance may
need to be increased. Refer to the installation instruc-
tions supplied with the decorative cap cover.
Figure 6.2
B-Vent Gas, Wood or Fuel
Oil Termination
A
18 in.
(457 mm)
B
20 in.
(152 mm) min.
B-Vent Gas, Wood or Fuel
Oil Termination
20 in. min. *
(508 mm)
Termination Cap Clearances
8 ft
(2.44 m)
(minimum) to
Perpendicular
Wall
(BV only)
(508 mm) min.
8 ft
(2.44 m)
(minimum) to
Perpendicular
Wall
(BV only)
21
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