MRCOOL MTWH04530E
MRCOOL MTWH04530E 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 D30-45FH.
Certified figures
- Storage volume
- 28gallons
- UEF
- 0.92Uniform energy factor
- First-hour rating
- 47gallonsHot water in the first hour
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| Model number | Storage volume (gal) | UEF | First-hour rating (gal) | Recovery efficiency | Draw pattern |
|---|---|---|---|---|---|
| MTWH04530E | 28 | 0.92 | 47 | 98% | Low |
UEF is the uniform energy factor. A dash means the model has no such figure.
Starting full, it gives 47 gallons of hot water in its first hour of use. Reheating lets it give 19 gallons beyond the 28 gallons in its tank. Among 477 electric storage models, 350 have a higher first-hour rating. The median electric storage model gives 55 gallons in its first hour.
In tests, 92% of the energy went to hot water, so its UEF is 0.92. Its test simulated a day of low hot water use (its draw pattern). Of 157 electric storage models with the same draw pattern, 12 have a higher UEF. Its UEF is the median for its type and draw pattern. The water took in 98% of the energy used to reheat it (its recovery efficiency).
All of its test figures are shared by 6 other basic models. Of those, one or more are under the Midea and Stream 33 brands. You can find the whole group on the page for the Midea D30-45FH.
Also listed as
They carry every figure in the table above.
Not covered
- Advertised figures. We have none on file for this model.