Lochinvar GCGH-50 2**
Lochinvar GCGH-50 2** is in the DOE listing as of Oct 26, 2026.
- Gas storage water heater
- 1 listed model
Not listed as ENERGY STAR certified on Oct 26, 2026.
Its figures are also listed under A. O. Smith G6N-UT5040NVR 5**.
Certified figures
- Storage volume
- 48gallons
- UEF
- 0.63Uniform energy factor
- First-hour rating
- 76gallonsHot water in the first hour
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| Model number | Storage volume (gal) | UEF | First-hour rating (gal) | Recovery efficiency | Draw pattern |
|---|---|---|---|---|---|
| GTN05038WR 2** | 48 | 0.63 | 76 | 77% | High |
UEF is the uniform energy factor. A dash means the model has no such figure.
It holds 48 gallons in the test, 2 gallons less than its 50-gallon sold size. Starting full, it gives 76 gallons of hot water in its first hour of use. Reheating lets it give 28 gallons beyond the 48 gallons in its tank. Of 763 gas storage models, 429 give more hot water in the first hour. The median gas storage model gives 78 gallons in its first hour.
On Oct 26, 2026, this heater was not listed as ENERGY STAR certified. In tests, 63% of the energy went to hot water, so its UEF is 0.63. Its test simulated a day of high hot water use (its draw pattern). Among 434 gas storage models on its draw pattern, 339 have a higher UEF. For its type and draw pattern, the UEF runs from 0.61 to 0.90. Of the energy spent to reheat water, 77% goes into it (its recovery efficiency).
Its test figures match those of 7 other basic models. In all, 4 other brands list one or more of them. You can find the whole group on the page for the A. O. Smith G6N-UT5040NVR 5**.
Also listed as
They carry every figure in the table above.
- Every Lochinvar basic model
- Every 50-gallon gas storage water heater
- Every gas storage water heater
- The most-searched gas storage models side by side
Not covered
- Advertised figures. We have none on file for this model.