Midea MEWH50S82S1
Midea MEWH50S82S1 is in the DOE listing as of Oct 19, 2026.
- Electric storage water heater
- 2 listed models
ENERGY STAR certification does not cover this type of water heater.
Its figures are also listed under Midea D50-45FH.
Certified figures
- Storage volume
- 47gallons
- UEF
- 0.92Uniform energy factor
- First-hour rating
- 64gallonsHot water in the first hour
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Change your hourAdvertised and certified figures
| Figure | Advertised | Certified | Advertiser | Read |
|---|---|---|---|---|
| Size | 50 gal, nominal size | 47 gal storage volume | Midea | Read Oct 5, 2026 |
Certified figures by listed model
| Model number | Storage volume (gal) | UEF | First-hour rating (gal) | Recovery efficiency | Draw pattern |
|---|---|---|---|---|---|
| D50-45FH | 47 | 0.92 | 64 | 98% | Medium |
| MEWH50S82S1 | 47 | 0.92 | 64 | 98% | Medium |
UEF is the uniform energy factor. A dash means the model has no such figure.
It holds 47 gallons in the test, 3 gallons less than its 50-gallon sold size. Starting full, it gives 64 gallons of hot water in its first hour of use. That is 17 gallons more than its tank holds, since it reheats during the hour. Among 477 electric storage models, 74 have a higher first-hour rating. Among electric storage models, the median first-hour rating is 55 gallons.
In tests, 92% of the energy it uses ends up as hot water (UEF 0.92). Its test simulated a day of medium hot water use (its draw pattern). Its UEF is lower than that of 81 of the 297 electric storage models with its draw pattern. Its UEF is the median for its type and draw pattern. When it reheats water in the test, 98% of the energy it uses ends up in the water.
Its 2 model numbers are D50-45FH and MEWH50S82S1. Its test figures match those of 4 other basic models. Those basic models are sold with MRCOOL and Stream 33 as their brand names. For the full group, see the Midea D50-45FH.
Also listed as
They carry every figure in the table above.
- Every Midea basic model
- Every 50-gallon electric storage water heater
- Every electric storage water heater
Not covered
- Changes to an advertised figure after the date beside it.