A. O. Smith GPHE-50 1 50-Gallon is a gas storage water heater from A. O. Smith with a 48 gallon rated tank and a 119 gallon first-hour rating at a 0.88 UEF — 192 therms/yr certified use, 76k BTU/h input.
Efficiency
Uniform Energy Factor (UEF)
0.88
Annual gas use (natural gas)
192 therms/yr
Recovery efficiency
93 %
Annual propane use
209.83 gal/yr
General
Fuel
Natural Gas
Capacity
First-hour rating
119 gal
Rated storage volume
48 gal
Draw pattern
High
Performance
Gas input rate
76 kBTU/h
Installation
Max current draw
5 A
Vent type
Power Vent
Vent size
2 / 3
Smart features
Smart / connected capable
No
Dimensions
Height
51.9 in
Diameter
18 in
Certification
ENERGY STAR certified
Yes
Capacity and running cost
Its 119 gallon first-hour rating suits a
household of 5+ people under DOE sizing guidance.
Rated for a high-usage draw pattern
under the DOE test procedure.
Estimated running cost: about $278/year at national
average gas rates.
Also sold as
The A. O. Smith GPHE-50 1 50-Gallon is certified hardware that A. O. Smith and its partner brands
publish under 6 names. The same specifications apply to every
variant:
Is the A. O. Smith GPHE-50 1 50-Gallon ENERGY STAR certified?
Yes, the A. O. Smith GPHE-50 1 50-Gallon holds a current ENERGY STAR certification for water heating efficiency (UEF 0.88).
How much does the A. O. Smith GPHE-50 1 50-Gallon cost to run per year?
About $278 per year at national average energy rates, based on its certified annual energy use under the DOE test draw pattern. Your rate and usage change this figure.
What venting does the A. O. Smith GPHE-50 1 50-Gallon use?
The A. O. Smith GPHE-50 1 50-Gallon uses Power Vent venting with 2 / 3 in vent connections. Matching the existing vent type is usually the cheapest replacement path.
Is the A. O. Smith GPHE-50 1 50-Gallon a smart water heater?
No, the A. O. Smith GPHE-50 1 50-Gallon is not connected-capable — it has no app connectivity or demand-response support.
