Hot Water List

Fogatti ET003

Fogatti ET003 is in the DOE listing as of Oct 19, 2026.

  • Electric tankless water heater
  • 1 listed model

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

Its figures are also listed under EEMAX AM004120T.

Certified figures

Flow at a 67°F rise
0.3gallons per minute
UEF
0.93Uniform energy factor

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 0.3 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

Fogatti ET003: certified figures by listed model
Model numberUEFFlow at a 67°F rise (gal/min)Recovery efficiencyDraw pattern
ET003A1W0.930.393%Very small

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

At a 67°F rise, its flow in the test is 0.3 gallons per minute. The median flow among electric tankless models is 0.7 gallons per minute. Of 337 electric tankless models, 271 have a higher flow than this one.

In the test, 7% of its energy does not reach the hot water (UEF 0.93). Its test simulated a day of very small hot water use (its draw pattern). 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, 93% ends up in it (its recovery efficiency).

There are 3 more basic models with the same test figures. Those basic models are sold with EEMAX, Mizudo, and Westinghouse as their brand names. You can find the whole group on the page for the EEMAX AM004120T.

Also listed as

They carry every figure in the table above.

Updated Oct 19, 2026 · Methodology

Not covered

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