Hot Water List

Rheem RTGH-C95XLN

Rheem RTGH-C95XLN is in the DOE listing as of Oct 26, 2026.

It has a certified UEF of 0.93 and a certified flow of 5.6 gal/min at a 67°F rise.

Its certified flow is 5.6 gal/min at a 67°F rise, while SupplyHouse advertises 9.5 gal/min, no rise stated (Archived copy, Oct 1, 2023), so a comparison at the same rise is not possible.

  • Gas tankless water heater
  • 2 listed models

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

Certified and advertised figures

Flow at a 67°F rise
5.6gallons per minuteCertified
Advertised flow
9.5gallons per minuteSupplyHouse, no rise stated
UEF
0.93Uniform 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 5.4 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 RTGH-C95XLN: advertised and certified
Rheem RTGH-C95XLN: advertised and certified Flow: advertised 9.5 gal/min, certified 5.6 gal/min (advertised no rise stated, certified at a 67°F rise). Flow: advertised 9.0 gal/min, certified 5.6 gal/min (advertised at a 40°F rise, certified at a 67°F rise). Flow: advertised 7.5 gal/min, certified 5.6 gal/min (advertised at a 50°F rise, certified at a 67°F rise). Flow: advertised 6.3 gal/min, certified 5.6 gal/min (advertised at a 60°F rise, certified at a 67°F rise). Flow · advertised no rise stated, certified at a 67°F rise Advertised 9.5 gal/min Certified 5.6 gal/min Flow · advertised at a 40°F rise, certified at a 67°F rise Advertised 9.0 gal/min Certified 5.6 gal/min Flow · advertised at a 50°F rise, certified at a 67°F rise Advertised 7.5 gal/min Certified 5.6 gal/min Flow · advertised at a 60°F rise, certified at a 67°F rise Advertised 6.3 gal/min Certified 5.6 gal/min
Rheem RTGH-C95XLN: advertised figures, where and when read
FigureAdvertisedCertifiedAdvertiserRead
Flow 9.5 gal/min, no rise stated 5.6 gal/min at a 67°F rise SupplyHouse Archived copy, Oct 1, 2023
Flow 9.0 gal/min at a 40°F rise 5.6 gal/min at a 67°F rise SupplyHouse Archived copy, Oct 1, 2023
Flow 7.5 gal/min at a 50°F rise 5.6 gal/min at a 67°F rise SupplyHouse Archived copy, Oct 1, 2023
Flow 6.3 gal/min at a 60°F rise 5.6 gal/min at a 67°F rise SupplyHouse Archived copy, Oct 1, 2023
Flow 5.4 gal/min at a 70°F rise 5.6 gal/min at a 67°F rise SupplyHouse Archived copy, Oct 1, 2023

See how advertised flow compares across tankless models

Certified figures by listed model

Rheem RTGH-C95XLN: certified figures by listed model
Model numberUEFFlow at a 67°F rise (gal/min)Recovery efficiencyDraw pattern
RTGH-C95XLN0.935.696%High
RTGH-CM95XLN0.935.696%High

UEF is the uniform energy factor. A dash means the model has no such figure.

It heats 5.6 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. Its flow at a 67°F rise trails 86 of the 487 gas tankless models.

As of Oct 26, 2026, it was not listed as ENERGY STAR certified. In tests, 93% of the energy it uses ends up as 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 and 179 a lower one. On its draw pattern, its UEF is also the median gas tankless UEF. When it runs, 96% of the energy it uses reaches the water (its recovery efficiency).

It is sold as RTGH-C95XLN and RTGH-CM95XLN.

In 2 states, 2 rebate programs may accept it. Another 2 rebate programs may accept it if it meets their other terms.

Rebates

Rheem RTGH-C95XLN: 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
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.

Updated Oct 26, 2026 · Methodology

Not covered

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