Termination Locations; Vent Termination Minimum Clearances - Heatilator NDV3630 Owner's Manual

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 fi re.
24 in. min.
(508 mm)
(610 mm)
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
22
Horizontal
overhang
20 in.
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 • Novus NDV Series • 4055-187 Rev. X • 6/13
6 in. (minimum) up to 20 in.
152 mm/508 mm
20 in. and over
B
Gas
Termination
Cap **
* If using decorative cap cover(s), this distance may need to be
increased. Refer to the installation instructions supplied with the
decorative cap cover.
In a staggered installation with both gas and wood or fuel oil
**
terminations, the wood or fuel oil termination cap must be
higher than the gas termination cap.
Figure 6.2 Multiple Termination Caps
4.0
5.0
6.0
7.0
7.5
8.0
A
18 in. minimum
457 mm
0 in. minimum
Gas, Wood or Fuel Oil
Termination Cap
A *
B