Heatilator NNXT4236IF Installation Manual page 19

2. Top Vent - Vertical Termination - (continued)
Two Elbows
Figure 4.13
Heatilator • NNXT4236IF, NNXT4236ILF, NNXT3633IF, NNXT3633ILF Installation Manual • 4055-980 Rev. D • 9/15
12 ft (3.66 m) min.
60 ft (18.29 m) max.
Maximum horizontal
run is 100% of
vertical, but cannot
exceed 17 ft (5.18 m)
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