Aquapower Mini 2-1
Aquapower Mini 2-1 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 Stiebel Eltron Mini 2-1.
Certified figures
- Flow at a 67°F rise
- 0.2gallons per minute
- UEF
- 0.99Uniform 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 0.2 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 2-1 | 0.99 | 0.2 | 98% | Very small |
UEF is the uniform energy factor. A dash means the model has no such figure.
It heats 0.2 gallons per minute of water by 67°F in the test. The electric tankless type has a median flow of 0.7 gallons per minute. Of 337 electric tankless models, 320 have a higher flow than this one.
In the test, 1% of its energy does not reach the hot water (UEF 0.99). Its test simulated a day of very small hot water use (its draw pattern). Among 272 electric tankless models on its draw pattern, 2 have a higher UEF. A UEF of 0.96 is the median for its type and draw pattern. Of the energy it spends heating water, 98% ends up in it (its recovery efficiency).
There is one more basic model with the same test figures. That one is listed under the Stiebel Eltron brand. For the full group, see the Stiebel Eltron Mini 2-1 page.
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.