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Heatilator • NDV30-IFT, NDV33-IFT, NDV36-IFT, NDV36-IFT-NVR, NDV42-IFT Installation Manual • 2620-980 Rev. C • 8/20
Figure 4.26
Figure 4.27
Rear Vent - Vertical Termination
One Elbow
Two Elbows
V
Total
=
6 ft (1.83 m) min.
60 ft (18.29 m) max.
H
1
= 0 min.
6 ft (1.83 m) max.
H
1
V
Total
6 ft (1.83 m) min.
60 ft (18.29 m) max.
0 min.
6 ft (1.83 m) max.
Maximum horizontal run (H
Total
)=
100% of
vertical, but cannot exceed 26 ft (7.92 m)
H
2
H
1