Specification Sheet

For technical information call 800-527-1953. A. O. Smith Corporation reserves the right to make product changes or improvements without prior notice.
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AOSRG45102
Residential Gas
Water Heaters
OPTIONAL CONCENTRIC VENT KI T
3” DIAMETER
VENT/EXHAUST
3” DIAMETER PVC
INTAKE/COMBUSTIO N AIR
1 1/2”
21 1/8”
4 1/2” DI AMET ER
1 3/ 16 ”
39”
INSTALL IN ACCORDANCE WITH LOCAL CODES.
ANODE
INLET
TOP VIEW
OUTLET
F
OPTIONAL CONCENTRIC VENT KI T
3” DIAMETER
VENT/EXHAUST
3” DIAMETER PVC
INTAKE/COMBUSTIO N AIR
1 1/2”
21 1/8”
4 1/2” DI AMET ER
1 3/ 16 ”
39”
INSTALL IN ACCORDANCE WITH LOCAL CODES.
ANODE
INLET
TOP VIEW
OUTLET
F
GDHE-50
GDHE-75
FRONT VIEW
FRONT VIEW
TOP VIEW
Available in Propane (LP) gas. Specify when ordering Propane (LP) gas.
Models certified for sea level to 10,100 ft. elevation.
Optional Condensate Neutralizer Kit available (Part Number 9007959005).
Model
Number
Gallon
Capacity
Recovery @ 90°F Rise
Gallon Per Hour
BTU Input
Per Hour
Vent Size
Dimensions in Inches Approx.
Shipping
Weight (lbs)
A B C D E F
GDHE-50 50 129 100,000 2 or 3 66-3/4 49-1/4 22 15-3/4 3 8 255
GDHE-75 75 129 100,000 2 or 3 65-1/4 45-5/8 27-3/4 16 3-3/4 8 382