Download Cover Page - NV Series

Figure 5
Separated Combustion -Vertical Venting
6 ft. (1.8m) Min.
to Wall or Adjoining
Building
Exhaust Vent
Approved Vent Caps
Combustion Air Inlet
2.5 ft. (0.75m)
Min.
12 in. (0.3m) Min.
18 in. (0.46m) Min. * (See Note)
Exhaust
Tee with Drip Leg and
Cleanout Cap
18 in. (0.46m) Min.
Heating Appliance
* Provide sufficient height to
exceed expected snow depth
Figure 6
Separated Combustion-Horizontal Venting
5 ft. (1.5m) Min.
25 ft. (15.2m) Max.
Equivalent Length
Building Overhang
Pitch pipes down ¼ in./ ft. (21mm / m)
Toward terminal caps to allow for
Condensate drainage
3 ft. (0.9m) Min.
12 in. (0.3m)
6ft. (1.8m)
Min.
24 in.
(0.6m)
9
3 ft. (0.9m) Min.
Above Grade
Size by expected
Snow depth
Adjacent
Building