Lennox ELITE EL196UHE Installation Instructions Manual page 19

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 calculation.
1-1/2" Pipe
No.
Model
Of 90°
Elbows
030 045 070
1 25 20 15
2 20 15 10
3 15 10
4 10
5
6
n/a
7 n/a
n/a
8
9
10
1-1/2" Pipe
No.
Model
Of 90°
Elbows
030 045 070
1 25 20 15
2 20 15 10
3 15 10
4 10
5
6
n/a
7 n/a
n/a
8
9
10
Maximum Allowable Intake or Exhaust Vent Length in Feet
Standard Termination at Elevation 0 - 4500 ft
2" Pipe
Model
030/
090 110 070 090
045
81 66
76 61
71 56
66 51
61 46
n/a n/a
56 41
51 36
46 31
41 26
36 21
Standard Termination Elevation 4500 - 10,000 ft
2" Pipe
Model
030,
090 110 070 090
045
81 66
76 61
71 56
66 51
61 46
n/a n/a
56 41
51 36
46 31
41 26
36 21
TABLE 5
2-1/2" Pipe
Model
030/,
110 070
045
44 24 115 115
39 19 110 110
34 14 105 105
29 100 100
24 95 95
19 90 90
14 n/a 85 85
80 80
n/a 75 75
70 70
2-1/2" Pipe
Model
030,
110 070
045
44 115 115
39 110 110
34 105 105
29 100 100
24 95 95
n/a
19 90 90
14 85 85
80 80
n/a 75 75
70 70
Page 19
3" Pipe
Model
030/,
090 110 070
045
93 58 138 137
88 53 133 132
83 48 128 127
78 43 123 122
73 38 118 117
68 33 113 112
63 28 108 107
58 23 103 102
53 18 98 97
48 13 93 92
3" Pipe
Model
030,
090 110 070
045
93 58 138 137
88 53 133 132
83 48 128 127
78 43 123 122
73 38 118 117
68 33 113 112
63 28 108 107
58 23 103 102
53 18 98 97
48 13 93 92
090 110
118 118
113 113
108 108
103 103
98 98
93 93
88 88
83 83
78 78
73 73
090 110
118 118
113 113
108 108
103 103
98 98
93 93
88 88
83 83
78 78
73 73