Termination Locations; Vent Termination Minimum Clearances - Heatilator GBST36 Series Owner's Manual

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Termination Locations

A. Vent Termination Minimum Clearances
WARNING
Fire Risk
Explosion 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 fi re.
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 4.1 Minimum Height from Roof to Lowest Discharge Opening
8 ft
(2.44 m)
Vertical
Lowest
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 Multi-Sided B-Vent • 4002-094 Rev H • 11/07
Gas
Termination
Termination Caps Staggered Height
A Gas Termination Wood or Fuel Oil Termination
B 6 in.
Wood or
Gas Termination
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 4.2 Multiple Vertical Termination
4.0
5.0
6.0
7.0
7.5
8.0
B-Vent Gas, Wood or Fuel
Oil Termination
A
(minimum) to
18 in.
Perpendicular
(457 mm)
B
20 in.
(152 mm) min. (508 mm) min.
B-Vent Gas, Wood or Fuel
Oil Termination
(minimum) to
Perpendicular
20 in. min. *
(508 mm)
8 ft
(2.44 m)
Wall
(gas only)
8 ft
(2.44 m)
Wall
(gas only)
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