DoesTheMath

ARISTON PV50SLN*-65* vs BRADFORD WHITE RG2PDV50H*N: which uses less energy?

At the high draw pattern the ARISTON PV50SLN*-65* uses 245 therms a year and the BRADFORD WHITE RG2PDV50H*N 249 — 4 therms (1%) less, about 36 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 high draw pattern.

Filed and computed figures
Figure ARISTON PV50SLN*-65* BRADFORD WHITE RG2PDV50H*N
UEF (Uniform Energy Factor) 0.69 (better) 0.68
Energy use per year (therms) 245 (better) 249
First hour rating (gal) 110 103
Rated storage volume (gal) 47 46
Installed cost range $2,068–$3,846 $1,995–$3,659
ENERGY STAR certified not matched not matched
DOE CCD · 2026-09-19

What it costs to run

ARISTON PV50SLN*-65*: 245 therms a year BRADFORD WHITE RG2PDV50H*N: 249 therms a year

ARISTON PV50SLN*-65* — 245 therms a year BRADFORD WHITE RG2PDV50H*N — 249 therms a year

ARISTON PV50SLN*-65* is 4 therms a year lower than BRADFORD WHITE RG2PDV50H*N.

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 ARISTON PV50SLN*-65* if running cost matters most: it uses 4 therms less a year on the same test.
  • Pick the BRADFORD WHITE RG2PDV50H*N if it is the one you can get installed sooner or for less — on the filed figures it has no advantage over the ARISTON PV50SLN*-65*.
  • Neither if your household's busiest hour needs more than 110 gallons of hot water — neither lists more. Check whether a 50-gallon heater is enough.

Each model on its own