Water heater brands
117 brands. A model listed under several brands is counted under each.
Every brand, A to Z
Rheem lists 798 model numbers, more than any other water heater brand. A. O. Smith comes next, with 639 listed model numbers. Counting a model once under each brand that lists it, the brands list 5,311 model numbers. Together, the five brands with the most model numbers list 2,601 of them. That comes to 49% of the total across all brands.
Counted by basic model, 9 brands have 100 or more each. Rheem is one of them, with 231 basic models. A wider group of 41 brands has 10 or more basic models. The other brands each have fewer than 10 basic models. Among them, 13 brands have a single basic model each.