On Aug 11, 7:47*pm, Anagram wrote:
Looking at Rheem water heater specs, I noticed some strange numbers. *Two
of their water heaters have all the same specs except for the warranty and
the cost per year. *The cost per year of one is $309 and the other is $231. *
Everything else is the same, including first hour rating, tank size, input
btu/h, recovery rating, dimensions, weight, and energy factor.

I thought you could calculate the cost per year from the first hour rating,
the btu/h input, the recovery rating, and the energy factor. *But if all
four of those are the same, how are they getting such different costs per
year for them?

22V40F1, $309/year: *http://waterheating.rheem.com/conten...ts/specsheets/...
ntial%20Gas/RHGasFury.pdf



The better one has more insulation.
22V40 PROF, $231/year:http://waterheating.rheem.com/conten...ts/specsheets/...
ntial%20Gas/RHGasPro.pdf