Hot Water List

EEMAX SPEX3012T

EEMAX SPEX3012T 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 Rheem SPEX3012T.

Certified figures

Flow at a 67°F rise
0.3gallons per minute
UEF
0.96Uniform 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

EEMAX SPEX3012T: certified figures by listed model
Model numberUEFFlow at a 67°F rise (gal/min)Recovery efficiencyDraw pattern
SPEX3012T0.960.398%Very small

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

It warms 0.3 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, 271 have a higher flow than this one.

In the test, 4% of its energy does not reach the hot water (UEF 0.96). In the test, daily hot water use was set to very small (its draw pattern). Its UEF is lower than that of 77 of the 272 electric tankless models with its draw pattern. On its draw pattern, its UEF is also the median electric tankless UEF. Of the energy it spends heating water, 98% ends up in it (its recovery efficiency).

Its test figures match those of 5 other basic models. The Aquapower, Rheem, and Stiebel Eltron brands list one or more of them. For the full group, see the Rheem SPEX3012T.

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.