Blue Summit BG952UHV, Installation Instructions Manual

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507266-04B Page 20 of 56 Issue 1904
Maximum Allowable Intake or Exhaust Vent Length in Feet
Concentric Termination at Elevation 0 - 4,500 ft
Number of 90° Elbows
Used
2" Pipe 2" Pipe 2" Pipe
Capacity Capacity Capacity
70 90 110 70 90 110 70 90 110
1 53 37 17 100 84 49 116 109 109
2 48 32 12 95 79 44 111 104 104
3 43 27 7 90 74 39 106 99 99
4 38 22
n/a
85 69 34 101 94 94
5 33 17 80 64 29 96 89 89
6 28 12 75 59 24 91 84 84
7 23 7 70 54 19 86 79 79
8 18
n/a
65 49 14 81 74 74
9 13 60 44 9 76 69 69
10 8 55 39 n/a 71 64 64
Concentric Termination Elevation 4,501 - 10,000 ft
Number of 90° Elbows
Used
2" Pipe 2" Pipe 2" Pipe
Capacity Capacity Capacity
70 90 110 70 90 110 70 90 110
1 53 37
n/a
100 84 49 116 109 109
2 48 32 95 79 44 111 104 104
3 43 27 90 74 39 106 99 99
4 38 22 85 69 34 101 94 94
5 33 17 80 64 29 96 89 89
6 28 12 75 59 24 91 84 84
7 23 7 70 54 19 86 79 79
8 18
n/a
65 49 14 81 74 74
9 13 60 44 9 76 69 69
10 8 55 39 n/a 71 64 64
*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.
Table 5B.