Find what replaces your water heater
The model number on your unit's rating plate or its DOE certification filing — either works. This looks it up in the same registry every page on this site reads, not a shortlist.
Type the model number from the rating plate on your old heater. If the registry knows it, you get every model on file today in the same class — same fuel, type and draw pattern — with its efficiency and what it would cost to run instead.
Related pages
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Find a water heater that fits
Three questions — fuel, hot water need, install space — narrow every model on file to the ones that fit.
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What a water heater costs to run
Prices a unit's efficiency against your own utility's filed tariff for your ZIP code.
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Water heaters
Every model on file with the Department of Energy, by heater type.
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Water heater recalls on file
Every CPSC recall since 2015 and the models on file it names.
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How the numbers are calculated
The formula, the tariff rule and where published costs disagree.
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What is a good first hour rating for a water heater?
The first hour rating every storage model on file actually lists, by tank size, next to the DOE method for checking it against your own household.