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2. Top Vent - Vertical Termination - (continued)
Three Elbows
Note: A section of vertical pipe (18 inches minimum)
MUST be installed prior to attaching a 90° elbow.
V
2
Figure 5.8
H
2
INSTALLED
HORIZONTALLY
Heat & Glo • SL-36-Ultimate • 2141-900 Rev. i • 5/11
V
T
H
T
V
Min.
T
1 ft. 6 in.
2 ft. 6 in.
3 ft. 6 in.
4 ft.
4 ft. 6 in.
5 ft. 6 in.
6 ft. 6 in.
7 ft. 6 in.
H
= 21 ft. Max
T
V
= 40 ft. Max
T
V
+ H
= 30 ft. Max*
T
T
* If the horizontal component is less than
5 feet then the total vent run can be
extended to 40 feet.
H
1
V
1
H
Max.
T
3 ft.
6 ft.
9 ft.
10 ft.
12 ft.
15 ft.
18 ft.
21 ft.
17
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