Hot Water List

Hubbell ME80

Hubbell ME80 is in the DOE listing as of Oct 26, 2026.

It has a labeled size of 80 gallons, a certified storage volume of 78 gallons, a certified UEF of 0.92, and a certified first-hour rating of 85 gallons of hot water.

  • Grid-enabled water heater
  • 1 listed model

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

Certified figures

Storage volume
78gallons
UEF
0.92Uniform energy factor
First-hour rating
85gallonsHot water in the first hour

Certified figures by listed model

Hubbell ME80: certified figures by listed model
Model numberStorage volume (gal)UEFFirst-hour rating (gal)Recovery efficiencyDraw pattern
ME80780.928598%High

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

It holds 78 gallons in the test, 2 gallons less than its 80-gallon sold size. It delivers 85 gallons of hot water in the test's first hour. That is 7 gallons more than its tank holds, since it reheats during the hour. Of 21 grid-enabled models, 9 give more hot water in the first hour. In first-hour rating, it ties the median grid-enabled model.

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 high (its draw pattern). Of 21 grid-enabled models with the same draw pattern, 2 have a higher UEF. For its type and draw pattern, its UEF sits at the median. Of the energy spent to reheat water, 98% goes into 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.