Page 25
TABLE 13 continued
NOTE - Size intake and exhaust pipe length separately. Values in table are for Intake OR Exhaust, not combined total. Both Intake and
Exhaust must be same pipe size.
NOTE - Additional vent pipe and elbows used to terminate the vent pipe outside the structure must be included in the total vent length calcu
-
lation.
Concentric Termination at Elevation 0 - 2000 ft
No. Of
90°
Elbows
1-1/2” Pipe
2” Pipe
2-1/2” Pipe
3” Pipe
Models
Model
Model
Model
045
070 090 110
045
070
090 110 045 070
090
110 045
070 090 110
1
10
10
n/a
n/a
53
38
22
n/a
90
70
39
n/a
111
111
104 104
2
n/a
n/a
48
33
17
85
65
34
106
106
99
99
3
43
28
12
80
60
29
101
101
94
94
4
38
23
n/a
75
55
24
96
96
89
89
5
33
18
70
50
19
91
91
84
84
6
28
13
65
45
14
86
86
79
79
7
23
n/a
60
40
9
81
81
74
74
8
18
55
35
n/a
76
76
69
69
9
13
50
30
71
71
64
64
10
n/a
45
25
66
66
59
59
Concentric Termination Elevation 2001 - 10,000 ft
No, Of
90°
Elbows
2” Pipe
2-1/2” Pipe
3” Pipe
Model
Model
Model
045
070
090
110
045
070
090
110
045
070
090
110
1
35
25
15
n/a
90
63
39
n/a
111
111
104
104
2
30
20
10
85
58
34
106
106
99
99
3
25
15
n/a
80
53
29
101
101
94
94
4
20
10
75
48
24
96
96
89
89
5
15
n/a
70
43
19
91
91
84
84
6
10
65
38
14
86
86
79
79
7
n/a
60
33
9
81
81
74
74
8
55
28
n/a
76
76
69
69
9
50
23
71
71
64
64
10
45
18
66
66
59
59