Aquapower Tempra 12
Aquapower Tempra 12 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 Tempra 12.
Certified figures
- Flow at a 67°F rise
- 1.2gallons per minute
- UEF
- 0.93Uniform energy factor
Your fixtures at once
Change your hour and flowFlow where you live
Colder incoming water needs a bigger rise, so the heater gives 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 1.1 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 |
|---|---|---|---|---|
| DHE 12 | 0.93 | 1.2 | 93% | 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 1.2 gallons per minute. The electric tankless type has a median flow of 0.7 gallons per minute. Its flow at a 67°F rise trails 64 of the 337 electric tankless models.
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. A UEF of 0.96 is the median for its type and draw pattern. While it heats water, 93% of the energy used goes into the water (its recovery efficiency).
Its test figures match those of one other basic model. That one is listed under the Stiebel Eltron brand. For the full group, see the Stiebel Eltron Tempra 12 page.
Also listed as
They carry every figure in the table above.
- Every Aquapower basic model
- Every electric tankless water heater certified at 1.0 to 1.9 gallons per minute
- Every electric tankless water heater
Not covered
- Advertised figures. We have none on file for this model.