Ruud Gas Storage 80-Gallon (PROUG75-100U RU HE EC3)
Ruud Gas Storage 80-Gallon (PROUG75-100U RU HE EC3) is a gas storage water heater from Ruud with a 75 gallon rated tank and a 199 gallon first-hour rating at a 0.88 UEF — 192 therms/yr certified use, 100k BTU/h input.
Also sold as the Rheem Gas Storage 80-Gallon (PROPG75-100U RH HE EC3). This model is the same certified
hardware as the Rheem Gas Storage 80-Gallon (PROPG75-100U RH HE EC3), published under a
different brand — full details, comparisons, and pricing live on that page. The
certified figures below are identical.
Efficiency
Uniform Energy Factor (UEF)
0.88
Annual gas use (natural gas)
192 therms/yr
Recovery efficiency
95 %
Annual propane use
209.83 gal/yr
General
Fuel
Natural Gas
Capacity
First-hour rating
199 gal
Rated storage volume
75 gal
Draw pattern
High
Performance
Gas input rate
100 kBTU/h
Installation
Max current draw
7 A
Vent type
Power Vent, Power Direct Vent
Vent size
2 / 3
Smart features
Smart / connected capable
No
Dimensions
Height
64.5 in
Diameter
26.3 in
Certification
ENERGY STAR certified
Yes
Capacity and running cost
Its 199 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.
Is the Ruud Gas Storage 80-Gallon (PROUG75-100U RU HE EC3) ENERGY STAR certified?
Yes, the Ruud Gas Storage 80-Gallon (PROUG75-100U RU HE EC3) holds a current ENERGY STAR certification for water heating efficiency (UEF 0.88).
How much does the Ruud Gas Storage 80-Gallon (PROUG75-100U RU HE EC3) 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 Ruud Gas Storage 80-Gallon (PROUG75-100U RU HE EC3) use?
The Ruud Gas Storage 80-Gallon (PROUG75-100U RU HE EC3) uses Power Vent, Power Direct Vent venting with 2 / 3 in vent connections. Matching the existing vent type is usually the cheapest replacement path.
Is the Ruud Gas Storage 80-Gallon (PROUG75-100U RU HE EC3) a smart water heater?
No, the Ruud Gas Storage 80-Gallon (PROUG75-100U RU HE EC3) is not connected-capable — it has no app connectivity or demand-response support.
