VEVOR TSD-140
VEVOR TSD-140 is in the DOE listing as of Oct 26, 2026.
It has a certified UEF of 0.89 and a certified flow of 1.4 gal/min at a 67°F rise.
- Electric tankless water heater
- 1 listed model
ENERGY STAR certification does not cover this type of water heater.
Certified figures
- Flow at a 67°F rise
- 1.4gallons per minute
- UEF
- 0.89Uniform 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 1.3 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 |
|---|---|---|---|---|
| TSD-140 | 0.89 | 1.4 | 96% | — |
UEF is the uniform energy factor. A dash means the model has no such figure.
It heats 1.4 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. Its flow at a 67°F rise trails 54 of the 337 electric tankless models.
In the test, 11% of its energy does not reach the hot water (UEF 0.89). When it runs, 96% of the energy it uses reaches the water (its recovery efficiency).
- Every VEVOR 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.