Ruud PROG40-38U RH62 EC1*
Ruud PROG40-38U RH62 EC1* is in the DOE listing as of Oct 26, 2026.
- Gas storage water heater
- 5 listed models
Not listed as ENERGY STAR certified on Oct 26, 2026.
Its figures are also listed under Rheem PROG40-38U RH62 EC1*.
Certified figures
- Storage volume
- 38gallons
- UEF
- 0.58Uniform energy factor
- First-hour rating
- 71gallonsHot water in the first hour
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| Figure | Advertised | Certified | Advertiser | Read |
|---|---|---|---|---|
| Size | 40 gal, nominal size | 38 gal storage volume | Ruud | Read Oct 5, 2026 |
| Size | 38 gal | 38 gal storage volume | Ruud | Read Oct 5, 2026 |
| UEF | 0.58 | 0.58 | Ruud | Read Oct 5, 2026 |
| First-hour rating | 72 gal | 71 gal | Ruud | Read Oct 5, 2026 |
Certified figures by listed model
| Model number | Storage volume (gal) | UEF | First-hour rating (gal) | Recovery efficiency | Draw pattern |
|---|---|---|---|---|---|
| M4-40FN* | 38 | 0.58 | 71 | 76% | Medium |
| PRO+G40-38U RU62 EC1 TT* | 38 | 0.58 | 71 | 76% | Medium |
| PRO+G40-38U RU62 EC1* | 38 | 0.58 | 71 | 76% | Medium |
| PROG40-38U RU62 EC1 TT* | 38 | 0.58 | 71 | 76% | Medium |
| PROG40-38U RU62 EC1* | 38 | 0.58 | 71 | 76% | Medium |
UEF is the uniform energy factor. A dash means the model has no such figure.
It holds 38 gallons in the test, 2 gallons less than its 40-gallon sold size. It delivers 71 gallons of hot water in the test's first hour. Reheating lets it give 33 gallons beyond the 38 gallons in its tank. In the first hour, 493 of the 763 gas storage models give more hot water. Among gas storage models, the median first-hour rating is 78 gallons.
It was not listed as ENERGY STAR certified on Oct 26, 2026. In tests, 58% of the energy it uses ends up as hot water (UEF 0.58). Its test ran at the medium level of daily hot water use. Its UEF is lower than that of 230 of the 288 gas storage models with its draw pattern. For its type and draw pattern, the median UEF is 0.60. The water took in 76% of the energy used to reheat it (its recovery efficiency).
A tag or quote may show any of its 5 model numbers. All of its test figures are shared by 4 other basic models. Each of them is listed under a different brand. For the full group, see the Rheem PROG40-38U RH62 EC1*.
Also listed as
They carry every figure in the table above.
- Every Ruud basic model
- Every 40-gallon gas storage water heater
- Every gas storage water heater
- The most-searched gas storage models side by side
Not covered
- Changes to an advertised figure after the date beside it.