DoesTheMath

FRIEDRICH PROE40 T2 RH CG vs STATE HPTA-40 2**: which uses less energy?

At the medium draw pattern the STATE HPTA-40 2** uses 902 kWh a year and the FRIEDRICH PROE40 T2 RH CG 3,531 — 2,628 kWh (74%) less, about 26,284 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 medium draw pattern.

Filed and computed figures
FRIEDRICH PROE40 T2 RH CG STATE HPTA-40 2**
UEF (Uniform Energy Factor) 0.92 3.6 (better)
Energy use per year (kWh) 3,531 902 (better)
First hour rating (gal) 55 55
Rated storage volume (gal) 36 36
Installed cost range $1,591–$1,802 not published
ENERGY STAR certified not matched yes
Refrigerant not filed R-134a, GWP 1430
On the market since not filed 2024-03-01
DOE CCD · 2026-09-19

What it costs to run

FRIEDRICH PROE40 T2 RH CG: 3,531 kWh a year STATE HPTA-40 2**: 902 kWh a year

FRIEDRICH PROE40 T2 RH CG — 3,531 kWh a year STATE HPTA-40 2** — 902 kWh a year

STATE HPTA-40 2** is 2,629 kWh a year lower than FRIEDRICH PROE40 T2 RH CG.

DOE CCD · 2026-09-19

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Enter your ZIP to price both units on the same rate where you live.

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 STATE HPTA-40 2** if running cost matters most: it uses 2,628 kWh less a year on the same test.
  • Pick the FRIEDRICH PROE40 T2 RH CG if it is the one you can get installed sooner or for less — on the filed figures it has no advantage over the STATE HPTA-40 2**.
  • Neither if your household's busiest hour needs more than 55 gallons of hot water — neither lists more. Check whether a 40-gallon heater is enough.

Each model on its own

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