DoesTheMath

Richmond PROG50-36N RH60 MH DVX vs STATE GDV-40 3**: which uses less energy?

At the medium draw pattern the STATE GDV-40 3** uses 185 therms a year and the Richmond PROG50-36N RH60 MH DVX 191 — 6 therms (3%) less, about 64 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.

Filed and computed figures
Figure Richmond PROG50-36N RH60 MH DVX STATE GDV-40 3**
UEF (Uniform Energy Factor) 0.58 0.6 (better)
Energy use per year (therms) 191 185 (better)
First hour rating (gal) 65 64
Rated storage volume (gal) 48 39
Installed cost range $1,440–$2,230 $1,424–$2,199
ENERGY STAR certified not matched not matched
DOE CCD · 2026-09-19

What it costs to run

Richmond PROG50-36N RH60 MH DVX: 191 therms a year STATE GDV-40 3**: 185 therms a year

Richmond PROG50-36N RH60 MH DVX — 191 therms a year STATE GDV-40 3** — 185 therms a year

STATE GDV-40 3** is 6 therms a year lower than Richmond PROG50-36N RH60 MH DVX.

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.
  • The actual warranty term is printed in each model’s documentation, not in any registry.

Which should you pick?

  • Pick the STATE GDV-40 3** if running cost matters most: it uses 6 therms less a year on the same test.
  • Pick the Richmond PROG50-36N RH60 MH DVX if you need more hot water in your busiest hour: it lists a first hour rating of 65 gallons against 64.
  • Neither if your household's busiest hour needs more than 65 gallons of hot water — neither lists more. Check whether a 40-gallon heater is enough.

Each model on its own