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Vent Termination
Allowable Vent Configurations for Vertical Vent Terminations
(NATURAL GAS ONLY)
40'
0 elbow
zone
35'
30'
25'
20'
15'
10'
6'
5'
0°
Base of
air collar
0°
37
ALL APPLIANCES
2-7 elbow zone
2-6 elbow zone
2-5 elbow zone
5'
10'
Horizontal Run (H)
(For All Models)
2-4 elbow zone
2-3 elbow zone
2 elbow zone
15'
20'
V+H ≤ 40 ft.
H ≤ 20 ft.
V + H are measured from
the centre of the vent elbows.
Elbows are considered as 90°.
Two 45° elbows = One 90° elbow.
Note: A 6' (1 .83 m) minimum
vertical rise is considered the
minimum practical dimension for
the specific appliance enclosure
and a minimal building structure .
However, a greater minimum
vertical rise may be needed
to suit the specific application
constraints or local codes and /
or regulatory requirements .
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