Rheem RTGH-84DVLN-3
Rheem RTGH-84DVLN-3 is in the DOE listing as of Oct 26, 2026.
It has a certified UEF of 0.93 and a certified flow of 4.5 gal/min at a 67°F rise.
Its certified flow is 4.5 gal/min at a 67°F rise, while Rheem advertises 8.4 gal/min, no rise stated (Read Oct 4, 2026), so a comparison at the same rise is not possible.
- Gas tankless water heater
- 4 listed models
Not listed as ENERGY STAR certified on Oct 26, 2026.
Certified and advertised figures
- Flow at a 67°F rise
- 4.5gallons per minuteCertified
- Advertised flow
- 8.4gallons per minuteRheem, no rise stated
- UEF
- 0.93Uniform 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 4.3 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.
Advertised and certified figures
| Figure | Advertised | Certified | Advertiser | Read |
|---|---|---|---|---|
| UEF | 0.93 | 0.93 | Rheem | Read Oct 4, 2026 |
| Flow | 8.4 gal/min, no rise stated | 4.5 gal/min at a 67°F rise | Rheem | Read Oct 4, 2026 |
Certified figures by listed model
| Model number | UEF | Flow at a 67°F rise (gal/min) | Recovery efficiency | Draw pattern |
|---|---|---|---|---|
| ECOH160DVLN-3 | 0.93 | 4.5 | 94% | High |
| ECOH160DVLP-3 | 0.93 | 4.5 | 94% | High |
| RTGH-84DVLN-3 | 0.93 | 4.5 | 94% | High |
| RTGH-84DVLP-3 | 0.93 | 4.5 | 94% | High |
UEF is the uniform energy factor. A dash means the model has no such figure.
It heats 4.5 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, 319 have a higher flow than this one.
It was not listed as ENERGY STAR certified on Oct 26, 2026. In the test, 7% of its energy does not reach the hot water (UEF 0.93). Its test ran at the high level of daily hot water use. Of 399 gas tankless models with the same draw pattern, 196 have a higher UEF. For its type and draw pattern, its UEF sits at the median. While it heats water, 94% of the energy used goes into the water (its recovery efficiency).
All 4 of its model numbers carry the same certified figures. Its test figures match those of 3 other basic models. Those basic models are sold with Friedrich, Richmond, and Ruud as their brand names.
It may qualify for 2 rebate programs in 2 states. Another 2 rebate programs 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 |
| 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 Rheem 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
- Changes to an advertised figure after the date beside it.