DoesTheMath

FRIEDRICH PROE47 S2 RH95 vs Richmond PROE47 S2 RH CG: which uses less energy?

At the medium draw pattern the FRIEDRICH PROE47 S2 RH95 uses 3,493 kWh a year and the Richmond PROE47 S2 RH CG 3,531 — 38 kWh (1%) less, about 380 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 PROE47 S2 RH95 Richmond PROE47 S2 RH CG
UEF (Uniform Energy Factor) 0.93 (better) 0.92
Energy use per year (kWh) 3,493 (better) 3,531
First hour rating (gal) 54 54
Rated storage volume (gal) 43 43
Installed cost range $1,699–$2,194 $1,692–$1,978
ENERGY STAR certified not matched not matched
DOE CCD · 2026-09-19

What it costs to run

FRIEDRICH PROE47 S2 RH95: 3,493 kWh a year Richmond PROE47 S2 RH CG: 3,531 kWh a year

FRIEDRICH PROE47 S2 RH95 — 3,493 kWh a year Richmond PROE47 S2 RH CG — 3,531 kWh a year

FRIEDRICH PROE47 S2 RH95 is 38 kWh a year lower than Richmond PROE47 S2 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 FRIEDRICH PROE47 S2 RH95 if running cost matters most: it uses 38 kWh less a year on the same test.
  • Pick the Richmond PROE47 S2 RH CG if the installed price matters more than the running cost: its modeled installed range is $1,692–$1,978 against $1,699–$2,194.
  • Neither if your household's busiest hour needs more than 54 gallons of hot water — neither lists more. Check whether a 40-gallon heater is enough.

Each model on its own

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