DoesTheMath

BRADFORD WHITE RG240S*N vs Rheem XG40T06EC36U1: which uses less energy?

At the medium draw pattern the BRADFORD WHITE RG240S*N and the Rheem XG40T06EC36U1 use the same energy, 191 therms a year each, on the same federal test. Both are filed as a gas tank, so the comparison holds; what separates them is below. Enter your ZIP to price either one on your own rate.

Side by side

Compared within one class only: models filed as a gas tank at the medium draw pattern.

Filed and computed figures
BRADFORD WHITE RG240S*N Rheem XG40T06EC36U1
UEF (Uniform Energy Factor) 0.58 0.58
Energy use per year (therms) 191 191
First hour rating (gal) 69 68
Rated storage volume (gal) 38 38
Installed cost range $1,293–$1,862 $1,293–$1,862
ENERGY STAR certified not matched not matched
DOE CCD · 2026-09-19

What it costs to run

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 BRADFORD WHITE RG240S*N if its price or availability suits you — on energy the two are level.
  • Pick the Rheem XG40T06EC36U1 if it is the one you can get installed sooner or for less — on the filed figures it has no advantage over the BRADFORD WHITE RG240S*N.
  • Neither if your household's busiest hour needs more than 69 gallons of hot water — neither lists more. Check whether a 40-gallon heater is enough.

Each model on its own

Other comparisons

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