A. O. SMITH HPTA-80 2** vs RELIANCE WATER HEATERS HPTS-80 2**: which uses less energy?
At the high draw pattern the A. O. SMITH HPTA-80 2** and the RELIANCE WATER HEATERS HPTS-80 2** use the same energy, 1,279 kWh a year each, on the same federal test. Both are filed as an electric tank, so the comparison holds; what separates them is below. Enter your ZIP to price either one on your own rate.
Side by side
Compared within one class only: models filed as an electric tank at the high draw pattern.
| Figure | A. O. SMITH HPTA-80 2** | RELIANCE WATER HEATERS HPTS-80 2** |
|---|---|---|
| UEF (Uniform Energy Factor) | 3.88 | 3.88 |
| Energy use per year (kWh) | 1,279 | 1,279 |
| First hour rating (gal) | 95 | 95 |
| Rated storage volume (gal) | 81 | 82 |
| Installed cost range | not published | not published |
| ENERGY STAR certified | yes | yes |
| Refrigerant | R-134a, GWP 1430 | R-134a, GWP 1430 |
| On the market since | 2024-03-01 | 2022-06-06 |
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.
- Both are ENERGY STAR certified, which requires a manufacturer warranty of at least six years; the actual term for each model is not published.
- Time on the market, as filed with ENERGY STAR: the A. O. SMITH HPTA-80 2** since 2024-03-01, the RELIANCE WATER HEATERS HPTS-80 2** since 2022-06-06. A sale date, not a lifespan.
Which should you pick?
- Pick the A. O. SMITH HPTA-80 2** if its price or availability suits you — on energy the two are level.
- Pick the RELIANCE WATER HEATERS HPTS-80 2** if it is the one you can get installed sooner or for less — on the filed figures it has no advantage over the A. O. SMITH HPTA-80 2**.
- Neither if your household's busiest hour needs more than 95 gallons of hot water — neither lists more.
Each model on its own
-
A. O. SMITH HPTA-80 2**
Its filed figures, class position and running cost on your ZIP.
-
RELIANCE WATER HEATERS HPTS-80 2**
Its filed figures, class position and running cost on your ZIP.