State ENLB-30 1**
State ENLB-30 1** 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 A. O. Smith ENLB-30 1**.
Certified figures
- Storage volume
- 26gallons
- UEF
- 0.89Uniform energy factor
- First-hour rating
- 43gallonsHot water in the first hour
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| Figure | Advertised | Certified | Advertiser | Read |
|---|---|---|---|---|
| Size | 28 gal, nominal size | 26 gal storage volume | State | Read Oct 4, 2026 |
| Size | 26 gal | 26 gal storage volume | State | Read Oct 4, 2026 |
| UEF | 0.89 | 0.89 | State | Read Oct 4, 2026 |
| First-hour rating | 44 gal | 43 gal | State | Read Oct 4, 2026 |
| First-hour rating | 43 gal | 43 gal | State | Read Oct 4, 2026 |
Certified figures by listed model
| Model number | Storage volume (gal) | UEF | First-hour rating (gal) | Recovery efficiency | Draw pattern |
|---|---|---|---|---|---|
| EN6-30-DOLBS 1** | 26 | 0.89 | 43 | 98% | Low |
| ESX-30-DOLBS 1** | 26 | 0.89 | 43 | 98% | Low |
UEF is the uniform energy factor. A dash means the model has no such figure.
It holds 26 gallons in the test, 2 gallons less than its 28-gallon sold size. Over one hour from a full tank, it gave 43 gallons in the test (its first-hour rating). Reheating lets it give 17 gallons beyond the 26 gallons in its tank. In the first hour, 405 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, 89% of the energy it uses ends up as hot water (UEF 0.89). Its test simulated a day of low hot water use (its draw pattern). Its UEF is lower than that of 136 of the 157 electric storage models with its draw pattern. On its draw pattern, the median electric storage UEF is 0.92. When it reheats water in the test, 98% of the energy it uses ends up in the water.
It is the basic model for EN6-30-DOLBS 1** and ESX-30-DOLBS 1**. There are 3 more basic models with the same test figures. Of those, one or more are under the A. O. Smith, American, and RELIANCE WATER HEATERS brands. You can find the whole group on the page for the A. O. Smith ENLB-30 1**.
Also listed as
They carry every figure in the table above.
- Every State basic model
- Every 30-gallon electric storage water heater
- Every electric storage water heater
Not covered
- Changes to an advertised figure after the date beside it.