EEMAX SPEX90T
EEMAX SPEX90T 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 SPEX90T.
Certified and advertised figures
- Flow at a 67°F rise
- 0.9gallons per minuteCertified
- Advertised flow
- 2.0gallons per minuteSupplyHouse, up to, no rise stated
- UEF
- 0.98Uniform 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 0.9 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 |
|---|---|---|---|---|
| Flow | 2.0 gal/min, no rise stated | 0.9 gal/min at a 67°F rise | SupplyHouse | Archived copy, Feb 25, 2024 |
| Flow | up to 2.0 gal/min, no rise stated | 0.9 gal/min at a 67°F rise | SupplyHouse | Archived copy, Feb 25, 2024 |
| Flow | 2.0 gal/min at a 40°F rise | 0.9 gal/min at a 67°F rise | SupplyHouse | Archived copy, Feb 25, 2024 |
| Flow | 1.2 gal/min at a 50°F rise | 0.9 gal/min at a 67°F rise | SupplyHouse | Archived copy, Feb 25, 2024 |
| Flow | 1.0 gal/min at a 60°F rise | 0.9 gal/min at a 67°F rise | SupplyHouse | Archived copy, Feb 25, 2024 |
| Flow | 0.9 gal/min at a 70°F rise | 0.9 gal/min at a 67°F rise | SupplyHouse | Archived copy, Feb 25, 2024 |
Certified figures by listed model
| Model number | UEF | Flow at a 67°F rise (gal/min) | Recovery efficiency | Draw pattern |
|---|---|---|---|---|
| SPEX90T | 0.98 | 0.9 | 98% | Very small |
UEF is the uniform energy factor. A dash means the model has no such figure.
It heats 0.9 gallons per minute of water by 67°F in the test. The median electric tankless model heats 0.7 gallons per minute by 67°F. Of 337 electric tankless models, 114 have a higher flow than this one.
In tests, 98% of the energy it uses ends up as hot water (UEF 0.98). Its test simulated a day of very small hot water use (its draw pattern). Of 272 electric tankless models with the same draw pattern, 10 have a higher UEF and 235 a lower one. 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).
Its test figures match those of 5 other basic models. Those basic models are sold with KWICKSHOT and Rheem as their brand names. For the full group, see the Rheem SPEX90T page.
Also listed as
They carry every figure in the table above.
- Every EEMAX basic model
- Every electric tankless water heater certified below 1.0 gallon per minute
- Every electric tankless water heater
Not covered
- Changes to an advertised figure after the date beside it.