Hot Water List

EEMAX SPEX65T

EEMAX SPEX65T 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 Rheem SPEX65T.

Certified and advertised figures

Flow at a 67°F rise
0.6gallons per minuteCertified
Advertised flow
2.0gallons per minuteSupplyHouse, no rise stated
UEF
0.97Uniform energy factor

Flow where you live

The heater gives less flow when colder incoming water needs a bigger rise.

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 0.6 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

EEMAX SPEX65T: advertised and certified
EEMAX SPEX65T: advertised and certified Flow: advertised 2.0 gal/min, certified 0.6 gal/min (advertised no rise stated, certified at a 67°F rise). Flow: advertised 1.0 gal/min, certified 0.6 gal/min (advertised at a 40°F rise, certified at a 67°F rise). Flow: advertised 0.9 gal/min, certified 0.6 gal/min (advertised at a 50°F rise, certified at a 67°F rise). Flow: advertised 0.7 gal/min, certified 0.6 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 2.0 gal/min Certified 0.6 gal/min Flow · advertised at a 40°F rise, certified at a 67°F rise Advertised 1.0 gal/min Certified 0.6 gal/min Flow · advertised at a 50°F rise, certified at a 67°F rise Advertised 0.9 gal/min Certified 0.6 gal/min Flow · advertised at a 60°F rise, certified at a 67°F rise Advertised 0.7 gal/min Certified 0.6 gal/min
EEMAX SPEX65T: advertised figures, where and when read
FigureAdvertisedCertifiedAdvertiserRead
Flow 2.0 gal/min, no rise stated 0.6 gal/min at a 67°F rise SupplyHouse Archived copy, Feb 29, 2024
Flow 1.0 gal/min at a 40°F rise 0.6 gal/min at a 67°F rise SupplyHouse Archived copy, Feb 29, 2024
Flow 0.9 gal/min at a 50°F rise 0.6 gal/min at a 67°F rise SupplyHouse Archived copy, Feb 29, 2024
Flow 0.7 gal/min at a 60°F rise 0.6 gal/min at a 67°F rise SupplyHouse Archived copy, Feb 29, 2024
Flow 0.6 gal/min at a 70°F rise 0.6 gal/min at a 67°F rise SupplyHouse Archived copy, Feb 29, 2024

See how advertised flow compares across tankless models

Certified figures by listed model

EEMAX SPEX65T: certified figures by listed model
Model numberUEFFlow at a 67°F rise (gal/min)Recovery efficiencyDraw pattern
SPEX65T0.970.698%Very small

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 0.6 gallons per minute. The electric tankless type has a median flow of 0.7 gallons per minute. Among 337 electric tankless models, 179 give more flow at a 67°F rise.

In tests, 97% of the energy it uses ends up as hot water (UEF 0.97). In the test, daily hot water use was set to very small (its draw pattern). Among 272 electric tankless models on its draw pattern, 37 have a higher UEF. On its draw pattern, the median electric tankless UEF is 0.96. Of the energy it spends heating water, 98% ends up in it (its recovery efficiency).

There are 2 more basic models with the same test figures. Those basic models are sold with KWICKSHOT and Rheem as their brand names. For the full group, see the Rheem SPEX65T page.

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.