ENERGY STAR certified gas tankless water heaters
168 basic models from 29 brands.
ENERGY STAR certified gas tankless water heaters
- Basic models
- 16829 brands
- ENERGY STAR certified
- 168of 488All gas tankless basic models
- Advertised flows at least 1.5 times the certified flow
- 40of 45No rise stated
Of these 168 models, 166 were tested for high hot water use. The highest efficiency (UEF) on that test is 0.98, reached by 10 of 166 models. Across the 488 gas tankless models on this site, 168 hold ENERGY STAR status.
These 168 models are sold under 29 brands in all.
Warmed by 67°F in the test, flow is 3.8 to 6.0 gallons per minute by model.
Makers and stores list a flow without a temperature rise for 31 of these models. Of the 45 advertised flows for them, 40 are at least 1.5 times the certified flow. Across 73 models here, makers and stores give 89 advertised UEF figures. Of those advertised UEF figures, 6% differ from the certified UEF.
On their certified figures, 168 models here may qualify for a rebate. Each may qualify under at least one of 6 programs.
Certified figures by basic model
Sorted by flow, lowest first, then by UEF, highest first.
UEF is the uniform energy factor. A UEF compares only between models with the same draw pattern. A range means the models under one basic model differ. A dash means no such figure.
Of these, 168 basic models may qualify for at least one rebate program. See rebates by state
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Not covered
- Price, warranty, and installation.