AMERICAN ENJB-40 1** vs Rheem PROE38 S2 RH93 SB: which uses less energy?
At the medium draw pattern the AMERICAN ENJB-40 1** and the Rheem PROE38 S2 RH93 SB use the same energy, 3,456 kWh a year each, on the same federal test. Both are filed as an electric tank, so the comparison holds; what separates them is below. Enter your ZIP to price either one on your own rate.
Side by side
Compared within one class only: models filed as an electric tank at the medium draw pattern.
| Figure | AMERICAN ENJB-40 1** | Rheem PROE38 S2 RH93 SB |
|---|---|---|
| UEF (Uniform Energy Factor) | 0.94 | 0.94 |
| Energy use per year (kWh) | 3,456 | 3,456 |
| First hour rating (gal) | 57 | 59 |
| Rated storage volume (gal) | 35 | 35 |
| Installed cost range | $1,589–$2,210 | $1,589–$2,210 |
| ENERGY STAR certified | not matched | not matched |
What it costs to run
Reliability
Not published: Reliability, failure rates and each model’s actual warranty term.
The registries these figures come from certify energy performance under a federal test; none of them records how long a unit lasts or how often it fails, so this page does not rank the two on reliability.
What is here instead:
- The filed efficiency, capacity and tank size of both models, side by side below.
- The actual warranty term is printed in each model’s documentation, not in any registry.
Which should you pick?
- Pick the AMERICAN ENJB-40 1** if its price or availability suits you — on energy the two are level.
- Pick the Rheem PROE38 S2 RH93 SB if you need more hot water in your busiest hour: it lists a first hour rating of 59 gallons against 57.
- Neither if your household's busiest hour needs more than 59 gallons of hot water — neither lists more. Check whether a 30-gallon heater is enough.
Each model on its own
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AMERICAN ENJB-40 1**
Its filed figures, class position and running cost on your ZIP.
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Rheem PROE38 S2 RH93 SB
Its filed figures, class position and running cost on your ZIP.