507052-05
Page 20 of 54
Issue 1922
Figure 23. Typical Exhaust Pipe Connections
95G2DFV Maximum Allowable Exhaust Vent Length Using Ventilated Attic or Crawl Space for Intake Air in Feet
Standard Termination at Elevation 0 - 10,000 ft
Number
of 90°
Elbows
Used
1-1/2” Pipe
2” Pipe
2-1/2" Pipe
3" Pipe
Capacity
Capacity
Capacity
Capacity
045
070
090
110
045
070
090
110
045
070
090
110
045
070
090
110
1
15
n/a
n/a
n/a
56
41
24
n/a
85
85
63
28
103
102
83
83
2
10
51
36
19
80
80
58
23
98
97
78
78
3
n/a
46
31
14
75
75
53
18
93
92
73
73
4
41
26
9
70
70
48
13
88
87
68
68
5
36
21
4
65
65
43
8
83
82
63
63
6
31
16
n/a
60
60
38
3
78
77
58
58
7
26
11
55
55
33
n/a
73
72
53
53
8
21
6
50
50
28
68
67
48
48
9
16
1
45
45
23
63
62
43
43
10
11
n/a
40
40
18
58
57
38
38
NOTE
: Additional vent pipe and elbows used to terminate the vent pipe outside the structure must be included in the total vent length
calculation.
Table 7C.