Aquapower Mini -E 3-1
Aquapower Mini -E 3-1 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 SPEX3208T.
Certified figures
- Flow at a 67°F rise
- 0.3gallons per minute
- UEF
- 0.97Uniform energy factor
Your fixtures at once
Change your hour and flowFlow 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
| Model number | UEF | Flow at a 67°F rise (gal/min) | Recovery efficiency | Draw pattern |
|---|---|---|---|---|
| AQM-E 3-1 | 0.97 | 0.3 | 98% | 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 electric tankless type has a median flow of 0.7 gallons per minute. Its flow at a 67°F rise trails 271 of the 337 electric tankless models.
In tests, 97% of the energy it uses ends up as hot water (UEF 0.97). Its test ran at the very small level of daily hot water use. Among 272 electric tankless models on its draw pattern, 37 have a higher UEF. On its draw pattern, the median electric tankless UEF is 0.96. When it runs, 98% of the energy it uses reaches the water (its recovery efficiency).
There are 11 more basic models with the same test figures. Of those, one or more are under the EEMAX, Rheem, and Stiebel Eltron brands. You can find the whole group on the page for the Rheem SPEX3208T.
Also listed as
They carry every figure in the table above.
- Every Aquapower basic model
- Every electric tankless water heater certified below 1.0 gallon per minute
- Every electric tankless water heater
Not covered
- Advertised figures. We have none on file for this model.