Page 27
TABLE 14 Continued
Maximum Allowable Intake or Exhaust Vent Length in Feet
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.
Concentric Termination at Elevation 0 - 4500 ft
Number Of 90°
Elbows Used
2” Pipe
2-1/2” Pipe
3” Pipe
Model
Model
Model
045
070
090
110
045
070
090
110
045
070
090
110
1
73
58
42
22
105
105
89
54
121
121
114
114
2
68
53
37
17
100
100
84
49
116
116
109
109
3
63
48
32
12
95
95
79
44
111
111
104
104
4
58
43
27
n/a
90
90
74
39
106
106
99
99
5
53
38
22
85
85
69
34
101
101
94
94
6
48
33
17
80
80
64
29
96
96
89
89
7
43
28
12
75
75
59
24
91
91
84
84
8
38
23
n/a
70
70
54
19
86
86
79
79
9
33
18
65
65
49
14
81
81
74
74
10
28
13
60
60
44
n/a
76
76
69
69
Concentric Termination Elevation 4501 - 10,000 ft
Number Of 90°
Elbows Used
2” Pipe
2-1/2” Pipe
3” Pipe
Model
Model
Model
045
070
090
110
045
070
090
110
045
070
090
110
1
73
58
42
n/a
105
105
89
54
121
121
114
114
2
68
53
37
100
100
84
49
116
116
109
109
3
63
48
32
95
95
79
44
111
111
104
104
4
58
43
27
90
90
74
39
106
106
99
99
5
53
38
22
85
85
69
34
101
101
94
94
6
48
33
17
80
80
64
29
96
96
89
89
7
43
28
12
75
75
59
24
91
91
84
84
8
38
23
n/a
70
70
54
19
86
86
79
79
9
33
18
65
65
49
14
81
81
74
74
10
28
13
60
60
44
n/a
76
76
69
69
Содержание ML296UH045XV36B
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