Specifications
Venting Specifications for:
48 Gallon
65 Gallon
75 Gallon
This water heater is approved for installation with the following PVC, CPVC or ABS
Schedule 40 venting material.
The maximum and minimum vent lengths listedon this label are for the exhaust portion of
the vent. The intake portion of the vent must be equal to or less than the length of the
exhaust.
Through the Wall
Terminating # of
Elbows Maximum
Length ft (m)
Minimum
Length ft (m)
3" Diameter (7.6 cm) PVC Vent Connector Lengths
155 (16.8) 2 (.6)
Through the Wall 250 (15.2) 2 (.6)
Through the Wall 345 (13.7) 2 (.6)
Through the Wall 440 (12.2) 2 (.6)
Through the Wall
Terminating # of
Elbows Maximum
Length ft (m)
Minimum
Length ft (m)
4" Diameter (10.2 cm) PVC Vent Connector Lengths
195 (29.0) 10 (3.1)
Through the Wall 290 (27.4) 10 (3.1)
Through the Wall 385 (25.9) 10 (3.1)
Through the Wall 480 (24.4) 10 (3.1)
Through the Roof 060 (18.3) 7 (2.1)
Through the Roof 155 (16.8) 7 (2.1)
Through the Roof 250 (15.2) 7 (2.1)
Through the Roof 345 (13.7) 7 (2.1)
Through the Roof 0100 (30.5) 15 (4.6)
Through the Roof 195 (29.0) 15 (4.6)
Through the Roof 290 (27.4) 15 (4.6)
Through the Roof 385 (25.9) 15 (4.6)
Through the Wall 575 (22.9) 12 (3.6)
Through the Roof 480 (24.4) 15 (4.6)
Vent Tables
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PDX Series
Maximum
Length ft (m)
Minimum
Length ft (m)
45 (13.7) 2 (.6)
40 (12.2) 2 (.6)
35 (10.7) 2 (.6)
30 (9.1) 2 (.6)
50 (15.2) 7 (2.1)
45 (13.7) 7 (2.1)
40 (12.2) 7 (2.1)
35 (10.7) 7 (2.1)
Maximum 75 gal.Maximum 48, 65 gal.
Maximum 75 gal.Maximum 48, 65 gal.
Maximum
Length ft (m)
Minimum
Length ft (m)
85 (25.9) 10 (3.1)
80 (24.4) 10 (3.1)
75 (22.9) 10 (3.1)
70 (21.3) 10 (3.1)
90 (27.4) 15 (4.6)
85 (25.9) 15 (4.6)
80 (24.4) 15 (4.6)
75 (22.9) 15 (4.6)
65 (19.8) 12 (3.6)
70 (21.3) 15 (4.6)
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