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ECOTOUCH ECO65B

ECOTOUCH ECO65B is in the DOE listing as of Oct 26, 2026.

It has a certified UEF of 0.98 and a certified flow of 0.5 gal/min at a 67°F rise.

  • Electric tankless water heater
  • 1 listed model

ENERGY STAR certification does not cover this type of water heater.

Flow at a 67°F rise
0.5gallons per minute
UEF
0.98Uniform energy factor
See it among every electric tankless model

Flow where you live

A bigger rise from colder incoming water leaves the heater with less flow.

Cold water
Cold water must be at least 10°F colder than the hot water setting.
Flow estimate
The estimate uses the lowest certified flow among the listed models. It is about 0.5 gal/min at a 70°F rise.

Flow limits

  • The estimate excludes the flow needed to turn the heater on, heat lost in pipes, and installation.
  • Cold water from a well or long pipe run can differ from the temperature you enter.
  • Without a stated flow limit, estimates for warmer water may exceed the heater’s actual flow.

Certified figures by listed model

Model numberUEFFlow at a 67°F rise (gal/min)Recovery efficiencyDraw pattern
ECO65S0.980.598%Very small

UEF is the uniform energy factor. A dash means the model has no such figure.

It heats 0.5 gallons per minute of water by 67°F in the test. The median electric tankless model heats 0.7 gallons per minute by 67°F. Its flow at a 67°F rise trails 204 of the 337 electric tankless models.

In tests, 98% of the energy went to hot water, so its UEF is 0.98. Its test ran at the very small level of daily hot water use. Its UEF is lower than that of 10 of the 272 electric tankless models with its draw pattern. A UEF of 0.96 is the median for its type and draw pattern. When it runs, 98% of the energy it uses reaches the water (its recovery efficiency).

Updated Oct 26, 2026 · Methodology

Not covered

  • Advertised figures. We have none on file for this model.