THERMALUX NRC111DV (GQ-C3257WX-FF US)
THERMALUX NRC111DV (GQ-C3257WX-FF US) is in the DOE listing as of Oct 19, 2026.
- Gas tankless water heater
- 1 listed model
Not listed as ENERGY STAR certified on Oct 19, 2026.
Its figures are also listed under Noritz NRC111DV (GQ-C3257WX-FF US).
Certified figures
- Flow at a 67°F rise
- 5.7gallons per minute
- UEF
- 0.91Uniform 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 5.5 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 |
|---|---|---|---|---|
| NERC11DV (GQ-C3257WX-FF ET US) | 0.91 | 5.7 | 94% | High |
UEF is the uniform energy factor. A dash means the model has no such figure.
It heats 5.7 gallons per minute of water by 67°F in the test. The gas tankless type has a median flow of 4.8 gallons per minute. Its flow at a 67°F rise trails 60 of the 487 gas tankless models.
It was not listed as ENERGY STAR certified on Oct 19, 2026. In tests, 91% of the energy it uses ends up as hot water (UEF 0.91). In the test, daily hot water use was set to high (its draw pattern). Of 399 gas tankless models with the same draw pattern, 227 have a higher UEF. For its type and draw pattern, the UEF runs from 0.81 to 0.98. While it heats water, 94% 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 Noritz brand. For the full group, see the Noritz NRC111DV (GQ-C3257WX-FF US).
In 2 states, 2 rebate programs may accept it. It may qualify for 2 more if it meets terms its figures do not show.
Also listed as
They carry every figure in the table above.
Rebates
| Program | State | Status | Program page |
|---|---|---|---|
| SoCalGas High-Efficiency or ENERGY STAR Certified Natural Gas Tankless Water Heaters rebate | CA | May qualify if it meets the other terms | Its own page |
| Xcel Energy MINNESOTA RESIDENTIAL ENERGY EFFICIENCY PROGRAMS (gas storage, gas tankless) | MN | May qualify | Its own page |
| PSE&G Tankless Water Heaters | NJ | May qualify | Its own page |
| Focus on Energy (gas tankless) | WI | May qualify if it meets the other terms | Its own page |
Programs change their terms. Check the program's own page before you buy.
- Every THERMALUX basic model
- Every gas tankless water heater certified at 5.0 to 5.9 gallons per minute
- Every gas tankless water heater
- The most-searched gas tankless models side by side
Not covered
- Advertised figures. We have none on file for this model.