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TOP VENT - VERTICAL TERMINATION
No Elbows
DIMENSIONS
MINIMUM
10'
Two Elbows
EXAMPLE VENT RUNS
INITIAL PIPE
A (Vertical)
LENGTH
1' MINIMUM
1' MINIMUM
1' MINIMUM
1' MINIMUM
1' MINIMUM
Page 24
MAXIMUM
40'
Figure 37
B (Horizontal)
7'-6"
17' MAXIMUM
8'
20' MAXIMUM"
16'
15' MAXIMUM
28'
7'-6" MAXIMUM
32'
5' MAXIMUM
Figure 38
Three Elbows
Note: Subtract 3 feet from the total horizontal measurement for
each 90° elbow installed horizontally. Subtract 1-1/2 feet from the
total horizontal measurement for each 45° elbow installed hori-
zontally.
EXAMPLE VENT RUNS
INITIAL PIPE
A (Vertical)
LENGTH
1' MINIMUM
1' MINIMUM
1' MINIMUM
1' MINIMUM
1' MINIMUM
B (Horizontal)
7'
11'-6" MAXIMUM
8'
17' MAXIMUM
12'
14'-6" MAXIMUM
16'
12' MAXIMUM
28'
4'-6" MAXIMUM
Figure 39
32929-11-0817
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