Midea US3-RSJ-15/190RDVN3-L4 vs Perfect Aire 1PAWH50G: which uses less energy?
At the medium draw pattern the Midea US3-RSJ-15/190RDVN3-L4 and the Perfect Aire 1PAWH50G use the same energy, 866 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 | Midea US3-RSJ-15/190RDVN3-L4 | Perfect Aire 1PAWH50G |
|---|---|---|
| UEF (Uniform Energy Factor) | 3.75 | 3.75 |
| Energy use per year (kWh) | 866 | 866 |
| First hour rating (gal) | 71 | 69 |
| Rated storage volume (gal) | 46 | 47 |
| Installed cost range | $3,057–$4,409 | $3,089–$4,419 |
| ENERGY STAR certified | yes | yes |
| Sound level (dB) | 49 | 49 |
| Refrigerant | R-134a, GWP 1430 | R-134a, GWP 1430 |
| On the market since | 2026-06-30 | 2025-10-24 |
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.
- Both are ENERGY STAR certified, which requires a manufacturer warranty of at least six years; the actual term for each model is not published.
- Time on the market, as filed with ENERGY STAR: the Midea US3-RSJ-15/190RDVN3-L4 since 2026-06-30, the Perfect Aire 1PAWH50G since 2025-10-24. A sale date, not a lifespan.
Which should you pick?
- Pick the Midea US3-RSJ-15/190RDVN3-L4 if its price or availability suits you — on energy the two are level.
- Pick the Perfect Aire 1PAWH50G if it is the one you can get installed sooner or for less — on the filed figures it has no advantage over the Midea US3-RSJ-15/190RDVN3-L4.
- Neither if your household's busiest hour needs more than 71 gallons of hot water — neither lists more. Check whether a 50-gallon heater is enough.
Each model on its own
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Midea US3-RSJ-15/190RDVN3-L4
Its filed figures, class position and running cost on your ZIP.
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Perfect Aire 1PAWH50G
Its filed figures, class position and running cost on your ZIP.