waterheaterspecs

Gas storage, residential-duty commercial

Rheem PROPG75-100P RH HE EC3

Rheem PROPG75-100P RH HE EC3 is a residential-duty commercial gas storage water heater certified as a single rating set, 10 model numbers sold under four brand names, listed by Rheem Sales Company. Rated volume 75 gal, first-hour rating 199 gal, UEF 0.88 and a gas input of 100,000 Btu/h. This set lists 199 gal in the first hour, the second highest of the 15 residential-duty commercial gas storage sets. This set lists 75 gal of rated volume, the third highest of the 15 residential-duty commercial gas storage sets (shared by two sets).

Certified as of October 27, 2026 · EPA ENERGY STAR data, public domain · Compare in the Heater finder

Certified values

Certified values of Rheem PROPG75-100P RH HE EC3
Rating setRated volume, galFirst hour, galPer rated galUEFGas input, Btu/hTherms/yr
Rheem PROPG75-100P RH HE EC310 model numbers751992.650.88100,000192

Rheem PROPG75-100P RH HE EC3: first-hour rating against rated volume

Rheem PROPG75-100P RH HE EC3Other gas storage sets

First-hour rating, gal

Rheem PROPG75-100P RH HE EC3: first-hour rating against rated volume8012016020030405060708090100110120Rated volume, gal2×3×A. O. Smith GC6-PS4050V 1A. O. Smith GC6-PS5065V 1A. O. Smith GDHE-50 3A. O. Smith GDHE-75 3A. O. Smith HDHE-50 4A. O. Smith HDHE-75 4American PG10 34 100 2V 2GSW 6G5076NVC 1HTP PH100-119HTP PH100-55HTP PH100-80HTP PH76-50HTP PH76-60HTP PH76-80Rheem ECE G40-50U CN HERheem ECE G50-100U CN HE EC3Rheem ECE G50-50U CN HERheem ECE G50-76U CN HE EC3Rheem PROPG75-100P RH HE EC3
Rheem PROPG75-100P RH HE EC3: first-hour rating against rated volume80120160200306090120Rated volume, galA. O. Smith GC6-PS4050V 1A. O. Smith GC6-PS5065V 1A. O. Smith GDHE-50 3A. O. Smith GDHE-75 3A. O. Smith HDHE-50 4A. O. Smith HDHE-75 4American PG10 34 100 2V 2GSW 6G5076NVC 1HTP PH100-119HTP PH100-55HTP PH100-80HTP PH76-50HTP PH76-60HTP PH76-80Rheem ECE G40-50U CN HERheem ECE G50-100U CN HE EC3Rheem ECE G50-50U CN HERheem ECE G50-76U CN HE EC3Rheem PROPG75-100P RH HE EC3
Filled: the Rheem PROPG75-100P RH HE EC3; open circles: the other 18 gas storage sets. Dashed lines mark 2× and 3× the rated volume; the highest ratio in the line is 2.65×, on Rheem PROPG75-100P RH HE EC3.

Where this set stands

MeasureValueMedian of the groupPlacingCompared with
First-hour rating199 gal154 galsecond highest of 1515 residential-duty commercial gas storage sets
UEF0.880.88fourth lowest of 15, five tied15 high-draw residential-duty commercial gas storage sets
First-hour output per rated gallon2.652.65eighth highest of 1515 residential-duty commercial gas storage sets
Rated gas use192 therms/yr192 therms/yrfourth highest of 15, five tied15 high-draw residential-duty commercial gas storage sets
Gas input100,000 Btu/h100,000 Btu/hhighest of 15, ten tied15 gas tankless sets

Model numbers

The set covers 10 model numbers under four brand names, first certified 2024-11-04 and most recently 2025-05-08.

Model numberBrandHeight × diameterVentFuelRecovery efficiencyCertified
12PROG 75-100P FD HE EC3Friedrich64.5 × 26.3 inPower Direct Ventpropane95%2024-11-04
12PROG 75-100U FD HE EC3Friedrich64.5 × 26.3 inPower Direct Ventnatural gas95%2024-11-04
PROPG75-100P RH HE EC3Rheem64.5 × 26.3 inPower Vent,Power Direct Ventpropane95%2025-05-08
PROPG75-100U RH HE EC3Rheem64.5 × 26.3 inPower Vent,Power Direct Ventnatural gas95%2025-05-08
XG75T12UHN100U0Rheem64.5 × 26.3 inPower Vent,Power Direct Ventnatural gas95%2025-05-08
XP75T12UHC100U0Rheem64.5 × 26.3 inPower Vent,Power Direct Ventpropane95%2025-05-08
12GUH75-100FNRichmond64.5 × 26.3 inPower Vent,Power Direct Ventnatural gas95%2025-05-08
12GUH75-100FPRichmond64.5 × 26.3 inPower Vent,Power Direct Ventpropane95%2025-05-08
PROUG75-100P RU HE EC3Ruud64.5 × 26.3 inPower Vent,Power Direct Ventpropane95%2025-05-08
PROUG75-100U RU HE EC3Ruud64.5 × 26.3 inPower Vent,Power Direct Ventnatural gas95%2025-05-08

Nearest certified alternatives

Rating setFirst hourUEFRated volume
HTP PH76-80+7 gal−0.01+2 gal
HTP PH100-55−12 gal+0.01−22 gal
Rheem ECE G50-100U CN HE EC3−32 gal+0.01−25 gal
HTP PH100-119−21 gal+0.02+37 gal

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