Use & Care Manual

17
*Use only Rheem 3 in. (7.6 cm) concentric termination.
Table 2 - Continued
From 2,000 ft. (609 m) Above Sea Level through 5,999 ft. (1,828 m) Above Sea Level
Model
Vent &
Combustion
Air-Inlet System
Diameter
Min. Allowed
Equivalent Vent &
Combustion Air-Inlet
Lengths (Each Pipe
Run)
Max. Allowed Equivalent
Vent & Combustion Air-
Inlet Lengths (Each Pipe
Run)
Vent and Combustion Air-Inlet
System Termination(s)
Inches Feet Meters Feet Meters
50 Gallon, 65,000 &
47,000 Btu/hr. Models
3 7 2 50 15 90° Elbows
3 7 2 40 12 Concentric*
4 7 2 100 30 90° Elbows
65 Gallon, 65,000 &
56,000 Btu/hr. Models
3 8 2.5 30 9 90° Elbows
3 8 2.5 20 6 Concentric*
4 8 2.5 100 30 90° Elbows
75 Gallon, 75,100 &
70,000 Btu/hr. Models
3 8 2.5 25 8 90° Elbows
3 8 2.5 20 6 Concentric*
4 8 2.5 100 30 90° Elbows
From 6,000 ft. (1,829 m) Above Sea Level through 7,700 ft. (2,347 m) Above Sea Level
Model
Vent &
Combustion
Air-Inlet System
Diameter
Min. Allowed
Equivalent Vent &
Combustion Air-Inlet
Lengths (Each Pipe
Run)
Max. Allowed Equivalent
Vent & Combustion Air-
Inlet Lengths (Each Pipe
Run)
Vent and Combustion Air-Inlet
System Termination(s)
Inches Feet Meters Feet Meters
50 Gallon, 65,000 &
47,000 Btu/hr. Models
3 7 2 50 15 90° Elbows
3 7 2 40 12 Concentric
4 7 2 100 30 90° Elbows
65 Gallon, 65,000 &
56,000 Btu/hr. Models
4 8 2.5 40 12 90° Elbows
75 Gallon, 75,100 &
70,000 Btu/hr. Models
4 8 2.5 50 15 90° Elbows
From 7,701 ft. (2,347 m) Above Sea Level through 10,200 ft. (3,109 m) Above Sea Level
Model
Vent &
Combustion
Air-Inlet System
Diameter
Min. Allowed
Equivalent Vent &
Combustion Air-Inlet
Lengths (Each Pipe
Run)
Max. Allowed Equivalent
Vent & Combustion Air-
Inlet Lengths (Each Pipe
Run)
Vent and Combustion Air-Inlet
System Termination(s)
Inches Feet Meters Feet Meters
50 Gallon, 65,000 &
47,000 Btu/hr. Models
3 7 2 25 8 90° Elbow
3 7 2 20 6 Concentric*
4 7 2 100 30 90° Elbow