Lennox EL195UHNE Installation Instructions Manual page 20

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.
Number Of
90° Elbows
040
1 81
2 76
3 71
4 66
5 61
6 56
7 51
8 46
9 41
10 36
Number Of
90° Elbows
040
1 73
2 68
3 63
4 58
5 53
6 48
7 43
8 38
9 33
10 28
TABLE 5 Continued
Standard Termination at Elevation 4501 - 7500 ft
2" Pipe
Model
060 080
41 34
36 29
31 24
26 19
21 14
16 9
11
n/a
n/a
Concentric Termination at Elevation 4501 - 7500 ft
2" Pipe
Model
060 080
33 32
28 27
23 22
18 17
13 12
n/a n/a
100 040
138
133
128
123
118
n/a
113
108
103
98
93
100 040
121
116
111
106
101
n/a
96
91
86
81
76
Page 20
3" Pipe
Model
060 080
105 100
100 95
95 90
90 85
85 80
80 75
75 70
70 65
65 60
60 55
3" Pipe
Model
060 080
89 89
84 84
79 79
74 74
69 69
64 64
59 59
54 54
49 49
44 44
100
65
60
55
50
45
40
35
30
25
20
100
61
56
51
46
41
36
31
26
21
16