GE GP40S**AYV01 vs Jetglas RG2D40S*N: which uses less energy?
An asterisk in a model number stands for any character: one filing covers several variants.
At the medium draw pattern the Jetglas RG2D40S*N uses 173 therms a year and the GE GP40S**AYV01 176 — 3 therms (2%) less, about 27 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 | GE GP40S**AYV01 | Jetglas RG2D40S*N |
|---|---|---|
| UEF (Uniform Energy Factor) | 0.63 | 0.64 (better) |
| Energy use per year (therms) | 176 | 173 (better) |
| First hour rating (gal) | 60 | 62 |
| Rated storage volume (gal) | 40 | 38 |
| Installed cost range NLR REMDB | $1,614–$2,687 | $1,643–$2,763 |
| CPSC recall naming it CPSC | none on file | none on file |
DOE CCD · 2026-09-19 NLR REMDB · 2026-04-01 CPSC · 2026-09-24
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 above.
- No CPSC recall on file names either model (list checked 2026-09-24).
- The actual warranty term is printed in each model’s documentation, not in any registry.
Which should you pick?
- Pick the Jetglas RG2D40S*N if running cost matters most: it uses 3 therms less a year on the same test.
- Pick the GE GP40S**AYV01 if it is the one you can get installed sooner or for less — on the filed figures it has no advantage over the Jetglas RG2D40S*N.
- Neither if your household's busiest hour needs more than 62 gallons of hot water — neither lists more. Check whether a 40-gallon heater is enough.
Each model on its own
- GE GP40S**AYV01 176 therms a year
- Jetglas RG2D40S*N 173 therms a year