Rheem PROPH40 T0 RH120
Rheem PROPH40 T0 RH120 is in the DOE listing as of Oct 26, 2026 and is not in the ENERGY STAR list as of Oct 26, 2026.
It has a labeled size of 40 gallons, a certified storage volume of 37 gallons, a certified UEF of 2.59, and a certified first-hour rating of 43 gallons of hot water.
- Heat pump water heater
- 2 listed models
Certified figures
- Storage volume
- 37gallons
- UEF
- 2.59Uniform energy factor
- First-hour rating
- 43gallonsHot water in the first hour
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Change your hourProduct history
Rheem PROPH40 T0 RH120 was in the DOE listing by Oct 1, 2026.
Rheem PROPH40 T0 RH120 was last in the ENERGY STAR list in records from March 2025; it is not in the list as of Jun 6, 2025.
Rheem PROPH40 T0 RH120 has a recorded ENERGY STAR market-availability date of Jul 15, 2022. It was in the ENERGY STAR list by Aug 11, 2023.
Certified figures by listed model
| Model number | Storage volume (gal) | UEF | First-hour rating (gal) | Recovery efficiency | Draw pattern |
|---|---|---|---|---|---|
| PROPH40 T0 RH120 | 37 | 2.59 | 43 | 355% | Medium |
| XE40T10H15U0 | 37 | 2.59 | 43 | 355% | Medium |
UEF is the uniform energy factor. A dash means the model has no such figure.
It holds 37 gallons in the test, 3 gallons less than its 40-gallon sold size. Starting full, it gives 43 gallons of hot water in its first hour of use. That is 6 gallons more than its tank holds, since it reheats during the hour. Of 481 heat pump models, 476 give more hot water in the first hour. Among heat pump models, the median first-hour rating is 72 gallons.
As of Oct 26, 2026, it was not listed as ENERGY STAR certified. In the test, it delivered 2.59 units of hot water energy for each unit used (its UEF). It moves heat from the air rather than making it, so its UEF passes 1. In the test, daily hot water use was set to medium (its draw pattern). Among 226 heat pump models on its draw pattern, 222 have a higher UEF. On its draw pattern, the median heat pump UEF is 3.68. When it reheats water in the test, the water gains 355% of the energy it uses.
Its 2 model numbers are PROPH40 T0 RH120 and XE40T10H15U0. There are 3 more basic models with the same test figures. The Friedrich, Richmond, and Ruud brands list one or more of them.
It may qualify for one rebate program if it meets their other terms.
Also listed as
They carry every figure in the table above.
Rebates
| Program | State | Status | Program page |
|---|---|---|---|
| SVCE Home Rebates | CA | May qualify if it meets the other terms | Its own page |
Programs change their terms. Check the program's own page before you buy.
- Every Rheem basic model
- Every 40-gallon heat pump water heater
- Every heat pump water heater
- The most-searched heat pump models side by side
Not covered
- Advertised figures. We have none on file for this model.