Hot Water List

Richmond G100-80

  • Gas storage water heater
  • 1 listed model

This model is not in the current certification listing as of Oct 26, 2026. It was last listed on Oct 2, 2026.

Its figures are also listed under Rheem G100-80.

Certified figures

Storage volume
96gallons
UEF
0.57Uniform energy factor
First-hour rating
128gallonsHot water in the first hour

Product history

Richmond G100-80 left the DOE listing between Oct 2, 2026 and Oct 17, 2026.

Richmond G100-80 was in the DOE listing by Oct 2, 2026.

Certified figures by listed model

Richmond G100-80: certified figures by listed model
Model numberStorage volume (gal)UEFFirst-hour rating (gal)Recovery efficiencyDraw pattern
T100-80960.5712874%—

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

It holds 96 gallons in the test, 4 gallons less than its 100-gallon sold size. It delivers 128 gallons of hot water in the test's first hour. Reheating lets it give 32 gallons beyond the 96 gallons in its tank.

In tests, 57% of the energy it uses ends up as hot water (UEF 0.57). Of the energy spent to reheat water, 74% goes into it (its recovery efficiency).

You can find the whole group on the page for the Rheem G100-80.

Updated Oct 26, 2026 · Methodology

Not covered

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