DoesTheMath

Rheem water heaters

What Rheem has on file with the DOE CCD — as filed, with no rating of the brand itself.

Rheem has 175 basic models on file with the DOE CCD, across 5 heater types. Of the 174 that sit in a class large enough to compare, 67 use less energy a year than their class median. Every model below links to its own page.

By heater type

Counts and ranges as filed. A class median is only used where eight or more models share the class.

Rheem: basic models by heater type
Heater typeModelsUEF rangeBelow class median
A gas tank 63 0.57–0.9 24 of 63
An electric tankless unit 51 0.92–0.98 17 of 51
An electric tank 40 0.91–4.07 20 of 40
A gas tankless unit 20 0.81–0.96 6 of 20
A short tank built to sit under a counter 1 0.81 no class median
DOE CCD · 2026-09-19

Every model

Grouped by heater type, alphabetical within each.

An electric tank 40 models
A gas tank 63 models
A gas tankless unit 20 models
An electric tankless unit 51 models
A short tank built to sit under a counter 1 model

What this page does not say

Nothing about how long Rheem heaters last, how often they fail or how its warranty compares: no registry this site reads publishes any of it, and this site does not estimate it. The DOE CCD records what each model is certified to do, and that is what this page counts.

Related pages

Analytics cookies

We count page views without cookies for everyone, and that counter is what we use to decide what to build. Google Analytics is separate: it uses cookies to record how a page was used, and it loads only if you allow it. Decline and the site works exactly the same. What we collect.