Ranein RH10K-LPG
Ranein RH10K-LPG is in the DOE listing as of Oct 26, 2026.
It has a certified UEF of 0.82 and a certified flow of 4.3 gal/min at a 67°F rise.
- Gas tankless water heater
- 1 listed model
Not listed as ENERGY STAR certified on Oct 26, 2026.
Certified figures
- Flow at a 67°F rise
- 4.3gallons per minute
- UEF
- 0.82Uniform energy factor
Your fixtures at once
Change your hour and flowFlow where you live
The heater gives less flow when colder incoming water needs a bigger rise.
- 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 4.1 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 |
|---|---|---|---|---|
| RH10K-LPG | 0.82 | 4.3 | 84% | High |
UEF is the uniform energy factor. A dash means the model has no such figure.
It heats 4.3 gallons per minute of water by 67°F in the test. The median flow among gas tankless models is 4.8 gallons per minute. Of 487 gas tankless models, 346 have a higher flow than this one.
It was not listed as ENERGY STAR certified on Oct 26, 2026. In tests, 82% of the energy it uses ends up as hot water (UEF 0.82). In the test, daily hot water use was set to high (its draw pattern). Of 399 gas tankless models with the same draw pattern, 243 have a higher UEF. For its type and draw pattern, the median UEF is 0.93. When it runs, 84% of the energy it uses reaches the water (its recovery efficiency).
All of its test figures are shared by one other basic model. That one is listed under the Vancepic brand.
In one state, one rebate program may accept it if it meets their other terms.
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 |
Programs change their terms. Check the program's own page before you buy.
- Every Ranein basic model
- Every gas tankless water heater certified at 4.0 to 4.9 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.