LOCHINVAR GCR-30 2** vs Rheem PROG29-32N RH63 *: which uses less energy?
At the medium draw pattern the LOCHINVAR GCR-30 2** uses 176 therms a year and the Rheem PROG29-32N RH63 * 185 — 9 therms (5%) less, about 88 therms over ten years. Both are filed as a gas tank, so the comparison holds. Enter your ZIP below to price the difference.
Side by side
Compared within one class only: models filed as a gas tank at the medium draw pattern.
| Figure | LOCHINVAR GCR-30 2** | Rheem PROG29-32N RH63 * |
|---|---|---|
| UEF (Uniform Energy Factor) | 0.63 (better) | 0.6 |
| Energy use per year (therms) | 176 (better) | 185 |
| First hour rating (gal) | 63 | 63 |
| Rated storage volume (gal) | 29 | 28 |
| Installed cost range | not published | not published |
| ENERGY STAR certified | not matched | not matched |
What it costs to run
Reliability
Not published: Reliability, failure rates and each model’s actual warranty term.
The registries these figures come from certify energy performance under a federal test; none of them records how long a unit lasts or how often it fails, so this page does not rank the two on reliability.
What is here instead:
- The filed efficiency, capacity and tank size of both models, side by side below.
- The actual warranty term is printed in each model’s documentation, not in any registry.
Which should you pick?
- Pick the LOCHINVAR GCR-30 2** if running cost matters most: it uses 9 therms less a year on the same test.
- Pick the Rheem PROG29-32N RH63 * if it is the one you can get installed sooner or for less — on the filed figures it has no advantage over the LOCHINVAR GCR-30 2**.
- Neither if your household's busiest hour needs more than 63 gallons of hot water — neither lists more. Check whether a 30-gallon heater is enough.
Each model on its own
-
LOCHINVAR GCR-30 2**
Its filed figures, class position and running cost on your ZIP.
-
Rheem PROG29-32N RH63 *
Its filed figures, class position and running cost on your ZIP.