Lochinvar ENLB-50W 1**
Lochinvar ENLB-50W 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 ENLB-50W 1**.
Certified figures
- Storage volume
- 44gallons
- UEF
- 0.91Uniform energy factor
- First-hour rating
- 40gallonsHot water in the first hour
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| Model number | Storage volume (gal) | UEF | First-hour rating (gal) | Recovery efficiency | Draw pattern |
|---|---|---|---|---|---|
| LES-50BW 1** | 44 | 0.91 | 40 | 98% | Low |
UEF is the uniform energy factor. A dash means the model has no such figure.
It holds 44 gallons in the test, 6 gallons less than its 50-gallon sold size. Starting full, it gives 40 gallons of hot water in its first hour of use. In the first hour, 444 of the 477 electric storage models give more hot water. The median electric storage model gives 55 gallons in its first hour.
In tests, 91% of the energy went to hot water, so its UEF is 0.91. Its test ran at the low level of daily hot water use. Among 157 electric storage models on its draw pattern, 81 have a higher UEF. For its type and draw pattern, the median UEF is 0.92. When it reheats water in the test, 98% of the energy it uses ends up in the water.
There are 2 more basic models with the same test figures. Of those, one or more are under the A. O. Smith and State brands. You can find the whole group on the page for the A. O. Smith ENLB-50W 1**.
Also listed as
They carry every figure in the table above.
- Every Lochinvar 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.