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State R4LA-240E 1**

State R4LA-240E 1** is in the DOE listing as of Oct 19, 2026.

  • Electric tankless water heater
  • 1 listed model

ENERGY STAR certification does not cover this type of water heater.

Its figures are also listed under RELIANCE WATER HEATERS R4LA-240E 1**.

Flow at a 67°F rise
2.3gallons per minuteCertified
Advertised flow
2.3gallons per minuteState, at a 67°F rise
UEF
0.92Uniform energy factor

Flow 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 2.2 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

State R4LA-240E 1**: advertised and certified
State R4LA-240E 1**: advertised and certified UEF: advertised 0.92, certified 0.92. Flow: advertised 2.3 gal/min, certified 2.3 gal/min (advertised at a 67°F rise, certified at a 67°F rise). UEF Advertised 0.92 Certified 0.92 Flow · advertised at a 67°F rise, certified at a 67°F rise Advertised 2.3 gal/min Certified 2.3 gal/min
FigureAdvertisedCertifiedAdvertiserRead
UEF 0.92 0.92 State Read Oct 4, 2026
Flow 2.3 gal/min at a 67°F rise 2.3 gal/min at a 67°F rise State Read Oct 4, 2026

See how advertised flow compares across tankless models

Certified figures by listed model

Model numberUEFFlow at a 67°F rise (gal/min)Recovery efficiencyDraw pattern
R4LS-240E 1**0.922.397%—

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

At a 67°F rise, its flow in the test is 2.3 gallons per minute. The electric tankless type has a median flow of 0.7 gallons per minute. Its flow at a 67°F rise trails 24 of the 337 electric tankless models.

In tests, 92% of the energy it uses ends up as hot water (UEF 0.92). When it runs, 97% of the energy it uses reaches the water (its recovery efficiency).

There is one more basic model with the same test figures. That one is listed under the RELIANCE WATER HEATERS brand. For the full group, see the RELIANCE WATER HEATERS R4LA-240E 1**.

Also listed as

They carry every figure in the table above.

Updated Oct 19, 2026 · Methodology

Not covered

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