DoesTheMath

Ruud water heaters

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

Ruud has 112 basic models on file with the DOE CCD, across 5 heater types. Of the 111 that sit in a class large enough to compare, 45 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.

Ruud: basic models by heater type
Heater typeModelsUEF rangeBelow class median
A gas tank 47 0.58–0.9 22 of 47
An electric tank 38 0.88–4.07 18 of 38
A gas tankless unit 23 0.81–0.96 5 of 23
An electric tank your utility can shift to off-peak hours 3 0.9–0.92 0 of 3
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 38 models
A gas tank 47 models
A gas tankless unit 23 models
An electric tank your utility can shift to off-peak hours 3 models
A short tank built to sit under a counter 1 model

What this page does not say

Nothing about how long Ruud 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.

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