Hot Water List

VAUGHN THERMAL MP45F

VAUGHN THERMAL 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 THERMAL 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. Over one hour from a full tank, it gave 57 gallons in the test (its first-hour rating). Reheating lets it give 13 gallons beyond the 44 gallons in its tank. In the first hour, 177 of the 477 electric storage models give more hot water. Among electric storage models, the median first-hour rating is 55 gallons.

In tests, 92% of the energy it uses ends up as hot water (UEF 0.92). In the test, daily hot water use was set to medium (its draw pattern). Among 297 electric storage models on its draw pattern, 81 have a higher UEF. On its draw pattern, its UEF is also the median electric storage UEF. Of the energy spent to reheat water, 98% goes into it (its recovery efficiency).

There are 2 more basic models with the same test figures. Of those, one or more are under the Hubbell and VAUGHN brands. For the full group, see the Hubbell MP45F.

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.