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vERTICAL TERMINATION
No Elbows
DIMENSIONS
(In Feet)
MINIMUM
MAXIMUM
10
40
Figure 60
GeNeRIC moDeL SHoWN
Two 90° Elbows
EXAMPLE vENT RUNS
INITIAL PIPE
LENGTH
(In Inches)
A-vertical
(In Feet)
b-Horizontal
(In Feet)
12
34
3
24
30
6
36
25
9
48
20
12
*maximum horizontal run is 100% of vertical, but cannot
exceed 18 ft.
Figure 61
GeNeRIC moDeL SHoWN
Three 90° 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
horizontally.
EXAMPLE vENT RUNS
INITIAL PIPE
LENGTH
(In Inches)
A-vertical
(In Feet)
b-Horizontal
(In Feet)
12
31
3
24
27
6
36
22
9
48
17
12
*maximum horizontal run is 100% of vertical, but cannot exceed
18 ft.
Figure 62
GeNeRIC moDeL SHoWN