Hot Water List

Hubbell MP30F

Hubbell MP30F is in the DOE listing as of Oct 26, 2026.

It has a labeled size of 30 gallons, a certified storage volume of 30 gallons, a certified UEF of 0.92, and a certified first-hour rating of 42 gallons of hot water.

  • Electric storage water heater
  • 1 listed model

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

Certified figures

Storage volume
30gallons
UEF
0.92Uniform energy factor
First-hour rating
42gallonsHot water in the first hour

Certified figures by listed model

Hubbell MP30F: certified figures by listed model
Model numberStorage volume (gal)UEFFirst-hour rating (gal)Recovery efficiencyDraw pattern
MP30F300.924298%Low

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

Sold as 30 gallons, it holds 30 gallons in the test. Starting full, it gives 42 gallons of hot water in its first hour of use. Reheating lets it give 12 gallons beyond the 30 gallons in its tank. In the first hour, 416 of the 477 electric storage models give more hot water. The median electric storage model gives 55 gallons in its first hour.

In tests, 92% of the energy it uses ends up as hot water (UEF 0.92). Its test simulated a day of low hot water use (its draw pattern). Among 157 electric storage models on its draw pattern, 12 have a higher UEF. Its UEF is the median for its type and draw pattern. The water took in 98% of the energy used to reheat it (its recovery efficiency).

All of its test figures are shared by 2 other basic models. The VAUGHN and VAUGHN THERMAL brands list one or more of them.

Also listed as

They carry every figure in the table above.

Updated Oct 26, 2026 · Methodology

Not covered

  • Advertised figures. We have none on file for this model.