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Heatilator • NNXT33-IFT, NNXT33L-IFT, NNXT36-IFT, NNXT36L-IFT Installation Manual • 2628-980 Rev. C • 8/20
Figure 4.22
Top Vent - Vertical Termination - (continued)
Two Elbows
V
1
+ V
2
6 ft. (1.83 m) min.
60 ft. (18.29 m) max.
Maximum horizontal run (
H
TOTAL
)
is 100% of vertical, but cannot
exceed 26 ft. (7.92 m)
H
1
V
2
V
1