Welcome Contractors, Specifiers and Installation Professionals!
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Contractor Specifier
Service Contractor Application
We're always looking for trusted service contractors to provide in-warranty and out-of-warranty service for our various lines of residential, tankless and commercial water heaters. For more information about becoming a Rheem service contractor please contact our Technical Services department.
Commercial Water Heater Sizing Guide
The Certispec automated sizing program is the best and quickest way to spec Rheem/Ruud Commercial Water Heaters. This software is free from Rheem Water Heating. It's the only sizing tool you'll ever need for a tank style water heater. 