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050505-36 36ARB2 13
A
Minimum rise
B
Pipe length
C
Maximum run
D
Pipe length
Maximum
68 1/2” 24” 18" 1'
74 1/2” 30” 76" 5'
80 1/2” 36” 11' 2 1/8" 10'
86 1/2” 42” 16' 15'
92 1/2” 48” 20’ 10 1/4” 20'
For other rise/run combinations see chart below
Fig. # 17
WALL
TERMINATION
VENTING CHART
NOTE: The vent must not exceed a total length of 68 feet. Any
combination of rise and run may be used but must be constrained
to the boundaries of this chart. A total of 3 90° elbows or
combination of other elbows equalling 90° can be used without
reducing horizontal run. For each additional 90° elbow, or an
equal combination of elbows, reduce horizontal vent run by 2
feet. Ensure vent pipe is properly supported.
* Minimum Vent Pipe Centerline Height
24" Pipe
length
minimum