Stream 33 MEWH38L82S1
Stream 33 MEWH38L82S1 is in the DOE listing as of Oct 19, 2026.
- Electric storage water heater
- 1 listed model
ENERGY STAR certification does not cover this type of water heater.
Its figures are also listed under Midea D38-45FI.
Certified figures
- Storage volume
- 35gallons
- UEF
- 0.92Uniform energy factor
- First-hour rating
- 54gallonsHot water in the first hour
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Change your hourCertified figures by listed model
| Model number | Storage volume (gal) | UEF | First-hour rating (gal) | Recovery efficiency | Draw pattern |
|---|---|---|---|---|---|
| S33-40LEWH-4500 | 35 | 0.92 | 54 | 98% | Medium |
UEF is the uniform energy factor. A dash means the model has no such figure.
It holds 35 gallons in the test, 3 gallons less than its 38-gallon sold size. Starting full, it gives 54 gallons of hot water in its first hour of use. Reheating lets it give 19 gallons beyond the 35 gallons in its tank. In the first hour, 239 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 the test, 8% of its energy does not reach the hot water (UEF 0.92). The daily hot water use in the test, called its draw pattern, was medium. Of 297 electric storage models with the same draw pattern, 81 have a higher UEF and 2 a lower one. On its draw pattern, its UEF is also the median electric storage UEF. Of the energy spent to reheat water, 98% goes into it (its recovery efficiency).
There are 4 more basic models with the same test figures. Those basic models are sold with Midea and MRCOOL as their brand names. You can find the whole group on the page for the Midea D38-45FI.
Also listed as
They carry every figure in the table above.
- Every Stream 33 basic model
- Every 40-gallon electric storage water heater
- Every electric storage water heater
Not covered
- Advertised figures. We have none on file for this model.