Heatilator • GDST5244I • 4045-127 • Rev W • 11/0820

A. Vent Termination Minimum Clearances

Figure 6.1 Minimum Height From Roof To Lowest Discharge
Opening
Horizontal
overhang
12
X
20 in.
(508 mm)
Lowest
Discharge
Opening
Termination
Cap
Roof Pitch
is X / 12
Vertical
wall
H (min.) - Minimum height
from roof to lowest
discharge opening.
24 in. min.
(610 mm)
Roof Pitch H (Min.) Ft. Roof Pitch H (Min.) Ft.
Flat to 6/12 1.0* Over 11/12 to 12/12 4.0
Over 6/12 to 7/12 1.25* Over 12/12 to 14/12 5.0
Over 7/12 to 8/12 1.5* Over 14/12 to 16/12 6.0
Over 8/12 to 9/12 2.0* Over 16/12 to 18/12 7.0
Over 9/12 to 10/12 2.5 Over 18/12 to 20/12 7.5
Over 10/12 to 11/12 3.25 Over 20/12 to 21/12 8.0
* 3 ft. minimum in snow regions
Storm Collar
Roof
Flashing
6
6 Termination Locations
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.
WARNING
Gas, Wood or Fuel Oil
Termination Cap
Minimum
DV = 20 in.
(508 mm)
BV = 8 ft
(2.44 m)
B
Gas
Termination
Cap **
A *
Perpendicular Wall
*Ifusing decorative c ap cover(s), this distance may need to be
increased.Refer to the ins tallation instructions supplied with the
decorativecap cover.
** Ina staggered installati on withbot h gas and woodt erminations, the
woodtermination cap mus t be higher than the gas termination cap.
AB
6in.(minimum)upto20in.
152mm/508 mm
18in. minimum
457mm
20in. and over 0in. minimum
Figure 6.2 Multiple Termination Caps