Heatilator • Caliber CNXT Series • 4047-132 Rev T • 09/08
20
Direct Vent Gas, Wood or Fuel
Oil Termination
20 in.
(508 mm)
(minimum) to
Perpendicular
Wall
(DV only)
Wood, Gas or
Fuel Oil
Termination
20 in. min.
*
(508 mm)
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 6.3 Leveled Termination Caps
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
speci
fi
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
A Gas
Termination
Wood or Fuel Oil Termination
B
6
in.
(152 mm) min.
20 in.
(508 mm) min.
Direct Vent Gas, Wood or Fuel
Oil Termination
20 in.
(508 mm)
(minimum) to
Perpendicular
Wall
(DV only)
18 in.
(457 mm)
A
Gas
Termination
B
Termination Caps Staggered Height
Figure 6.2 Staggered Termination Caps