ECOSMART ECO POU 6
ECOSMART ECO POU 6 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 ECO POU 6.
Certified figures
- Flow at a 67°F rise
- 0.5gallons per minute
- UEF
- 0.94Uniform 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 0.5 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 |
|---|---|---|---|---|
| ECO POU 6 | 0.94 | 0.5 | 98% | 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 0.5 gallons per minute. The median electric tankless model heats 0.7 gallons per minute by 67°F. Among 337 electric tankless models, 204 give more flow at a 67°F rise.
In tests, 94% of the energy it uses ends up as hot water (UEF 0.94). In the test, daily hot water use was set to very small (its draw pattern). Of 272 electric tankless models with the same draw pattern, 187 have a higher UEF and 55 a lower one. For its type and draw pattern, the median UEF is 0.96. While it heats water, 98% of the energy used goes into the water (its recovery efficiency).
There are 2 more basic models with the same test figures. Of those, one or more are under the EEMAX and Rheem brands. For the full group, see the Rheem ECO POU 6.
Also listed as
They carry every figure in the table above.
- Every ECOSMART 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.