Hot Water List

VEVOR R1T-80

VEVOR R1T-80 is in the DOE listing as of Oct 26, 2026.

It has a certified UEF of 0.93 and a certified flow of 0.8 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.

Certified figures

Flow at a 67°F rise
0.8gallons per minute
UEF
0.93Uniform energy factor

Flow where you live

The heater gives less flow when colder incoming water needs a bigger rise.

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 0.8 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

VEVOR R1T-80: certified figures by listed model
Model numberUEFFlow at a 67°F rise (gal/min)Recovery efficiencyDraw pattern
R1T-800.930.896%Very small

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

It warms 0.8 gallons per minute of water from 58°F to 125°F in the test. The median flow among electric tankless models is 0.7 gallons per minute. Of 337 electric tankless models, 131 have a higher flow than this one.

In tests, 93% of the energy it uses ends up as hot water (UEF 0.93). Its test ran at the very small level of daily hot water use. Of 272 electric tankless models with the same draw pattern, 217 have a higher UEF. On its draw pattern, the median electric tankless UEF is 0.96. Of the energy it spends heating water, 96% ends up in it (its recovery efficiency).

Updated Oct 26, 2026 · Methodology

Not covered

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