State EETU-55W 1**
State EETU-55W 1** 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 A. O. Smith EETU-55W 1**.
Certified figures
- Storage volume
- 55gallons
- UEF
- 0.92Uniform energy factor
- First-hour rating
- 64gallonsHot water in the first hour
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| Model number | Storage volume (gal) | UEF | First-hour rating (gal) | Recovery efficiency | Draw pattern |
|---|---|---|---|---|---|
| EE6-55-DURTW 1** | 55 | 0.92 | 64 | 98% | Medium |
UEF is the uniform energy factor. A dash means the model has no such figure.
Sold as 55 gallons, it holds 55 gallons in the test. Starting full, it gives 64 gallons of hot water in its first hour of use. Reheating lets it give 9 gallons beyond the 55 gallons in its tank. In the first hour, 74 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 tests, 92% of the energy went to hot water, so its UEF is 0.92. In the test, daily hot water use was set to medium (its draw pattern). Of 297 electric storage models with the same draw pattern, 81 have a higher UEF. 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).
All of its test figures are shared by 4 other basic models. They are listed under 4 other brands, one each. You can find the whole group on the page for the A. O. Smith EETU-55W 1**.
Also listed as
They carry every figure in the table above.
- Every State basic model
- Every 50-gallon electric storage water heater
- Every electric storage water heater
Not covered
- Advertised figures. We have none on file for this model.