Residential Tank Heaters - Gas

This collection covers Rheem Professional Classic and Professional Classic Plus gas tank water heaters from 38 to 50 gallons, with inputs from 33,000 to 60,000 Btu/h. Models include atmospheric, powered damper and direct vent venting, in natural gas and propane versions.

Size a water heater by its first-hour rating and household peak demand, not tank volume alone. Confirm gas type, the venting method your space allows, and the height and diameter against the available space. Plan for a T&P relief discharge line, a thermal expansion tank on closed systems, a drain pan where required, and seismic straps in areas that need them.

See also: Rheem 40 Gallon Water Heaters, Rheem 50 Gallon Water Heaters, Residential Tank Heaters - Electric, Water Heater Gas Supplies.