ECOSENSE RHE40S vs JOHN WOOD GPVT-40 2**: which uses less energy?
At the high draw pattern the ECOSENSE RHE40S uses 204 therms a year and the JOHN WOOD GPVT-40 2** 242 — 38 therms (16%) less, about 379 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 high draw pattern.
| Figure | ECOSENSE RHE40S | JOHN WOOD GPVT-40 2** |
|---|---|---|
| UEF (Uniform Energy Factor) | 0.83 (better) | 0.7 |
| Energy use per year (therms) | 204 (better) | 242 |
| First hour rating (gal) | 87 | 87 |
| Rated storage volume (gal) | 37 | 38 |
| Installed cost range | not published | $1,993–$3,665 |
| 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 ECOSENSE RHE40S if running cost matters most: it uses 38 therms less a year on the same test.
- Pick the JOHN WOOD GPVT-40 2** if it is the one you can get installed sooner or for less — on the filed figures it has no advantage over the ECOSENSE RHE40S.
- Neither if your household's busiest hour needs more than 87 gallons of hot water — neither lists more. Check whether a 40-gallon heater is enough.
Each model on its own
-
ECOSENSE RHE40S
Its filed figures, class position and running cost on your ZIP.
-
JOHN WOOD GPVT-40 2**
Its filed figures, class position and running cost on your ZIP.