LOCHINVAR HPTV-80 2 vs RELIANCE WATER HEATERS HPTS-80 2: which uses less energy?

At the high draw pattern the RELIANCE WATER HEATERS HPTS-80 2** uses 1,279 kWh a year and the LOCHINVAR HPTV-80 2** 1,654 — 375 kWh (23%) less, about 3,751 kWh over ten years. Both are filed as an electric tank, so the comparison holds. Enter your ZIP below to price the difference.

Side by side

Compared within one class only: models filed as an electric tank at the high draw pattern.

Filed and computed figures
Figure	LOCHINVAR HPTV-80 2**	RELIANCE WATER HEATERS HPTS-80 2**
UEF (Uniform Energy Factor)	3	3.88 (better)
Energy use per year (kWh)	1,654	1,279 (better)
First hour rating (gal)	93	95
Rated storage volume (gal)	82	82
Installed cost range	not published	not published
ENERGY STAR certified	yes	yes
Sound level (dB)	45	not filed
Refrigerant	R-513A, GWP 630	R-134a, GWP 1430
On the market since	2023-07-10	2022-06-06

DOE CCD · 2026-09-19

What it costs to run

LOCHINVAR HPTV-80 2** — 1,654 kWh a year RELIANCE WATER HEATERS HPTS-80 2** — 1,279 kWh a year

RELIANCE WATER HEATERS HPTS-80 2** is 375 kWh a year lower than LOCHINVAR HPTV-80 2**.

DOE CCD · 2026-09-19

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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 LOCHINVAR HPTV-80 2** since 2023-07-10, the RELIANCE WATER HEATERS HPTS-80 2** since 2022-06-06. A sale date, not a lifespan.

Which should you pick?

Pick the RELIANCE WATER HEATERS HPTS-80 2** if running cost matters most: it uses 375 kWh less a year on the same test.
Pick the LOCHINVAR HPTV-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 RELIANCE WATER HEATERS HPTS-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

LOCHINVAR HPTV-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.