GE GP50T**AYV01 vs State FMDV-50 2**: 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 GE GP50T**AYV01 uses 182 therms a year and the State FMDV-50 2** 194 — 13 therms (7%) less, about 128 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 GP50T**AYV01 | State FMDV-50 2** |
|---|---|---|
| UEF (Uniform Energy Factor) | 0.61 (better) | 0.57 |
| Energy use per year (therms) | 182 (better) | 194 |
| First hour rating (gal) | 65 | 67 |
| Rated storage volume (gal) | 50 | 47 |
| Installed cost range NLR REMDB | $1,645–$2,754 | not published |
| 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 GE GP50T**AYV01 if running cost matters most: it uses 13 therms less a year on the same test.
- Pick the State FMDV-50 2** if you need more hot water in your busiest hour: it lists a first hour rating of 67 gallons against 65.
- Neither if your household's busiest hour needs more than 67 gallons of hot water — neither lists more. Check whether a 50-gallon heater is enough.
Each model on its own
- GE GP50T**AYV01 182 therms a year
- State FMDV-50 2** 194 therms a year