Rheem PROE28 S2 RH95
Rheem PROE28 S2 RH95 is in the DOE listing as of Oct 26, 2026.
It has a labeled size of 28 gallons, a certified storage volume of 25 gallons, a certified UEF of 0.92, and a certified first-hour rating of 45 gallons of hot water.
Its advertised UEF of 0.92 from The Home Depot matches the certified 0.92 (Archived copy, Sep 2, 2025).
- Electric storage water heater
- 7 listed models
ENERGY STAR certification does not cover this type of water heater.
Certified figures
- Storage volume
- 25gallons
- UEF
- 0.92Uniform energy factor
- First-hour rating
- 45gallonsHot water in the first hour
Your busiest hour
Change your hourAdvertised and certified figures
| Figure | Advertised | Certified | Advertiser | Read |
|---|---|---|---|---|
| Size | 28 gal, nominal size | 25 gal storage volume | Rheem | Read Oct 4, 2026 |
| Size | 28 gal, nominal size | 25 gal storage volume | The Home Depot | Archived copy, Sep 2, 2025 |
| UEF | 0.92 | 0.92 | The Home Depot | Archived copy, Sep 2, 2025 |
| First-hour rating | 45 gal | 45 gal | The Home Depot | Archived copy, Sep 2, 2025 |
Certified figures by listed model
| Model number | Storage volume (gal) | UEF | First-hour rating (gal) | Recovery efficiency | Draw pattern |
|---|---|---|---|---|---|
| ELDS30-FTB | 25 | 0.92 | 45 | 98% | Low |
| ELDS30-TB | 25 | 0.92 | 45 | 98% | Low |
| PROE28 S1 RH95 | 25 | 0.92 | 45 | 98% | Low |
| PROE28 S2 RH95 | 25 | 0.92 | 45 | 98% | Low |
| XE28S06ST38P0 | 25 | 0.92 | 45 | 98% | Low |
| XE28S06ST38U0 | 25 | 0.92 | 45 | 98% | Low |
| XE28S06ST45U0 | 25 | 0.92 | 45 | 98% | Low |
UEF is the uniform energy factor. A dash means the model has no such figure.
It holds 25 gallons in the test, 3 gallons less than its 28-gallon sold size. Starting full, it gives 45 gallons of hot water in its first hour of use. Its tank holds 25 gallons, so reheating adds 20 gallons during the first hour. In the first hour, 377 of the 477 electric storage models give more hot water. The median electric storage model gives 55 gallons in the first hour of the test.
In tests, 92% of the energy it uses ends up as hot water (UEF 0.92). Its test simulated a day of low hot water use (its draw pattern). Of 157 electric storage models with the same draw pattern, 12 have a higher UEF. On its draw pattern, its UEF is also the median electric storage UEF. The water took in 98% of the energy used to reheat it (its recovery efficiency).
It is sold under 7 model numbers in all. There are 3 more basic models with the same test figures. Of those, one or more are under the Friedrich, Richmond, and Ruud brands.
Also listed as
They carry every figure in the table above.
- Every Rheem basic model
- Every 30-gallon electric storage water heater
- Every electric storage water heater
Not covered
- Changes to an advertised figure after the date beside it.