Hot Water List

Rheem RTG-70DVLN-3

Rheem RTG-70DVLN-3 is in the DOE listing as of Oct 26, 2026.

It has a certified UEF of 0.82 and a certified flow of 4.0 gal/min at a 67°F rise.

Its certified flow is 4.0 gal/min at a 67°F rise, while Rheem advertises 7.0 gal/min, no rise stated (Read Oct 4, 2026), so a comparison at the same rise is not possible.

  • Gas tankless water heater
  • 6 listed models

Not listed as ENERGY STAR certified on Oct 26, 2026.

Certified and advertised figures

Flow at a 67°F rise
4.0gallons per minuteCertified
Advertised flow
7.0gallons per minuteRheem, no rise stated
UEF
0.82Uniform energy factor

Flow 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.

Advertised and certified figures

Rheem RTG-70DVLN-3: advertised and certified
Rheem RTG-70DVLN-3: advertised and certified UEF: advertised 0.82, certified 0.82. Flow: advertised 7.0 gal/min, certified 4.0 gal/min (advertised no rise stated, certified at a 67°F rise). Flow: advertised 7.0 gal/min, certified 4.0 gal/min (advertised at a 35°F rise, certified at a 67°F rise). Flow: advertised 6.0 gal/min, certified 4.0 gal/min (advertised at a 45°F rise, certified at a 67°F rise). UEF Advertised 0.82 Certified 0.82 Flow · advertised no rise stated, certified at a 67°F rise Advertised 7.0 gal/min Certified 4.0 gal/min Flow · advertised at a 35°F rise, certified at a 67°F rise Advertised 7.0 gal/min Certified 4.0 gal/min Flow · advertised at a 45°F rise, certified at a 67°F rise Advertised 6.0 gal/min Certified 4.0 gal/min
Rheem RTG-70DVLN-3: advertised figures, where and when read
FigureAdvertisedCertifiedAdvertiserRead
UEF 0.82 0.82 The Home Depot Archived copy, May 29, 2024
Flow 7.0 gal/min, no rise stated 4.0 gal/min at a 67°F rise Rheem Read Oct 4, 2026
Flow 7.0 gal/min at a 35°F rise 4.0 gal/min at a 67°F rise The Home Depot Archived copy, May 29, 2024
Flow 6.0 gal/min at a 45°F rise 4.0 gal/min at a 67°F rise The Home Depot Archived copy, May 29, 2024
Flow 4.9 gal/min at a 55°F rise 4.0 gal/min at a 67°F rise The Home Depot Archived copy, May 29, 2024
Flow 4.2 gal/min at a 65°F rise 4.0 gal/min at a 67°F rise The Home Depot Archived copy, May 29, 2024

See how advertised flow compares across tankless models

Certified figures by listed model

Rheem RTG-70DVLN-3: certified figures by listed model
Model numberUEFFlow at a 67°F rise (gal/min)Recovery efficiencyDraw pattern
ECO160DVLN-30.824.084%High
ECO160DVLP-30.824.084%High
RTG-70DVLN-30.824.084%High
RTG-70DVLP-30.824.084%High
RTG-R70DVELN-30.824.084%High
RTG-R70DVELP-30.824.084%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 gas tankless type has a median flow of 4.8 gallons per minute. Among 487 gas tankless models, 385 give more flow at a 67°F rise.

It was not listed as ENERGY STAR certified on Oct 26, 2026. In tests, 82% of the energy went to hot water, so its UEF is 0.82. In the test, daily hot water use was set to high (its draw pattern). Its UEF is lower than that of 243 of the 399 gas tankless models with its draw pattern. A UEF of 0.93 is the median for its type and draw pattern. Of the energy it spends heating water, 84% ends up in it (its recovery efficiency).

It is sold under 6 model numbers in all. Its test figures match those of 8 other basic models. In all, 4 other brands list one or more of them.

It may qualify for one rebate program if it meets their other terms.

Also listed as

They carry every figure in the table above.

Rebates

Rheem RTG-70DVLN-3: rebate programs
ProgramStateStatusProgram 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.

Updated Oct 26, 2026 · Methodology

Not covered

  • Changes to an advertised figure after the date beside it.