Cross reference old Rheem model numbers to the new Rheem model numbers
Use this model look-up tool to quickly and easily convert old water heating model numbers to the new, more intuitive numbering system. Just type in your old Rheem model number and we will show you the new model number. See the new model number structure.
Please note: Not all water heater model numbers have changed. Residential Hybrid, Tankless, Marathon, Condensing Power Direct Vent, Table Top and Solar water heater model numbers have not changed. In addition, Commercial water heater model numbers have not changed.