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Heatilator • Novus NDV Series • 4055-187 Rev F • 06/08 27
2. Top Vent - Vertical Termination
No Elbow
Figure 7.7a
12 ft (3.66 m) min.
60 ft (18.29 m) max.
Maximum horizontal
run is 100% of
vertical, but cannot
exceed 26 ft (7.92 m)
Figure 7.8
Two Elbows
12 ft (3.66 m) min.
60 ft (18.29 m) max.
Figure 7.7b Remove Flue Visor
Figure 7.7c 12 to 30 ft Vertical Run
Figure 7.7d 31 ft to 60 ft Vertical Run
Install Top Vent Flue Visor - No Elbow Confi gura-
tions
• Remove screws holding fl ue visor to fi rebox top. See Figure
7.7b.
• Remove the fl ue visor.
• Using the screws removed and the same holes, install the
top vent fl ue baffl e and fl ue visor.
- The fl ue visor will be turned to install below the level
of the fi rebox top for 12-30 ft vertical runs of vent. See
Figure 7.7c.
- The fl ue visor will be turned to install inside the fl ue for
vertical vent runs of 31-60 ft. See Figure 7.7d.
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