14
1 2 3 4 5 6 7 8
2 75 70 65 60 55 50 45 40
3 114 107 100 93 86 79 72 65
2 45 40 35 30 25 20 15 10
3 168 161 154 147 140 133 126 119
2 35 30 25 20 15 10 5 N/A
3 168 161 154 147 140 133 126 119
2 60 55 50 45 40 35 30 25
3 113 106 99 92 85 78 71 64
2 45 40 35 30 25 20 15 10
3 120 113 106 99 92 85 78 71
2 40 35 30 25 20 15 10 5
3 151 144 137 130 123 116 109 102
2 N/A N/A N/A N/A N/A N/A N/A N/A
3 158 151 144 137 130 123 116 109
2 100 95 90 85 80 75 70 65
3 137 130 123 116 109 102 95 88
2 45 40 35 30 25 20 15 10
3 168 161 154 147 140 133 126 119
2 40 35 30 25 20 15 10 5
3 120 113 106 99 92 85 78 71
2 N/A N/A N/A N/A N/A N/A N/A N/A
3 113 106 99 92 85 78 71 64
2 N/A N/A N/A N/A N/A N/A N/A N/A
3 110 103 96 89 82 75 68 61
1 2 3 4 5 6 7 8
2 75 70 65 60 55 50 45 40
3 114 107 100 93 86 79 72 65
2 55 50 45 40 35 30 25 20
3 127 120 113 106 99 92 85 78
2 30 25 20 15 10 5 N/A N/A
3 72 65 58 51 44 37 30 23
2 30 25 20 15 10 5 N/A N/A
3 72 65 58 51 44 37 30 23
2 40 35 30 25 20 15 10 5
3 72 65 58 51 44 37 30 23
2 60 55 50 45 40 35 30 25
3 168 161 154 147 140 133 126 119
2 30 25 20 15 10 5 N/A N/A
3 113 106 99 92 85 78 71 64
2 N/A N/A N/A N/A N/A N/A N/A N/A
3 65 58 51 44 37 30 23 16
1. Maximum allowable limits listed on individual lengths
for inlet and ue and NOT a combination.
2. Minimum requirement for each vent pipe if ve (5)
feet in length and one elbow/tee.
3. Tee used in the vent/ue termination must be
included when determining the number of elbows in
the piping system.
4. 2 ½” or 3” diameter pipe can be used in place of 2”
diameter pipe.
5. Increased Clearance Conguration using (2) 45
deg. Long Sweep elbows should be considered
equivalent to one 90 deg. elbow.
6. One 90° elbow should be secured to the combustion
air intake connection.
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