Hot Water List

VAUGHN MP45F

VAUGHN MP45F is in the DOE listing as of Oct 19, 2026.

  • Electric storage water heater
  • 1 listed model

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

Its figures are also listed under Hubbell MP45F.

Certified figures

Storage volume
44gallons
UEF
0.92Uniform energy factor
First-hour rating
57gallonsHot water in the first hour

Certified figures by listed model

VAUGHN MP45F: certified figures by listed model
Model numberStorage volume (gal)UEFFirst-hour rating (gal)Recovery efficiencyDraw pattern
MP45F440.925798%Medium

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

It holds 44 gallons in the test, 1 gallon less than its 45-gallon sold size. It delivers 57 gallons of hot water in the test's first hour. That is 13 gallons more than its tank holds, since it reheats during the hour. Of 477 electric storage models, 177 give more hot water in the first hour. Among electric storage models, the median first-hour rating is 55 gallons.

In tests, 92% of the energy went to hot water, so its UEF is 0.92. In the test, daily hot water use was set to medium (its draw pattern). Its UEF is lower than that of 81 of the 297 electric storage models with its draw pattern. 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).

Its test figures match those of 2 other basic models. Those basic models are sold with Hubbell and VAUGHN THERMAL as their brand names. For the full group, see the Hubbell MP45F page.

Also listed as

They carry every figure in the table above.

Updated Oct 19, 2026 · Methodology

Not covered

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