Richmond RTG-70XLN-1
- Gas tankless water heater
- 1 listed model
Not listed as ENERGY STAR certified on Oct 26, 2026.
Its figures are also listed under Navien NHW700-160AE-NG.
Certified figures
- Flow at a 67°F rise
- 4.0gallons per minute
- UEF
- 0.81Uniform 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 3.8 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 |
|---|---|---|---|---|
| RMTG70XLN-1 | 0.81 | 4.0 | 84% | High |
UEF is the uniform energy factor. A dash means the model has no such figure.
It heats 4.0 gallons per minute of water by 67°F in the test. The median gas tankless model heats 4.8 gallons per minute by 67°F. Of 487 gas tankless models, 385 have a higher flow than this one.
As of Oct 26, 2026, it was not listed as ENERGY STAR certified. In tests, 81% of the energy it uses ends up as hot water (UEF 0.81). Its test ran at the high level of daily hot water use. Its UEF is lower than that of 327 of the 399 gas tankless models with its draw pattern. For its type and draw pattern, the median UEF is 0.93. While it heats water, 84% of the energy used goes into the water (its recovery efficiency).
There are 4 more basic models with the same test figures. Those basic models are sold with Navien and Ruud as their brand names. You can find the whole group on the page for the Navien NHW700-160AE-NG.
Also listed as
They carry every figure in the table above.
- Every Richmond 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.