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27Heatilator • Novus NNXT • 4055-879 • Rev. o • 2/12
Figure 7.6
1. Top Vent - Horizontal Termination - (continued)
Three Elbows
H
1
V
1
V
2
H
2
Installed
Vertically
V
1
min. V
1
+ V
2
max. H
1
+H
2
max.
ft m ft m ft m
DVP 1 0.30 24 7.32 17 5.18
SLP 1 0.30 22 6.71 17 5.18
2. Top Vent - Vertical Termination
No Elbow
Figure 7.7
12 ft (3.66 m) min.
60 ft (18.29 m) max.
Install Top Vent Flue Visor - No Elbow Confi gura-
tions
• Remove the refractory retainer from one side
refractory.
Remove lower
refractory retainer
Figure 7.7a Remove Refractory Retainer from one Side