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GE GG40S**AYV01

GE GG40S**AYV01 is in the DOE listing as of Oct 26, 2026.

It has a labeled size of 40 gallons, a certified storage volume of 40 gallons, a certified UEF of 0.63, and a certified first-hour rating of 72 gallons of hot water.

Its advertised UEF of 0.63 from GE matches the certified 0.63 (Read Oct 5, 2026).

  • Gas storage water heater
  • 1 listed model

Not listed as ENERGY STAR certified on Oct 26, 2026.

Storage volume
40gallons
UEF
0.63Uniform energy factor
First-hour rating
72gallonsHot water in the first hour
See it among every gas storage model

Advertised and certified figures

GE GG40S**AYV01: advertised and certified
GE GG40S**AYV01: advertised and certified Size: advertised 40 gal, certified 40 gal (advertised nominal size, certified storage volume). UEF: advertised 0.63, certified 0.63. First-hour rating: advertised 72 gal, certified 72 gal. Size · advertised nominal size, certified storage volume Advertised 40 gal Certified 40 gal UEF Advertised 0.63 Certified 0.63 First-hour rating Advertised 72 gal Certified 72 gal
FigureAdvertisedCertifiedAdvertiserRead
Size 40 gal, nominal size 40 gal storage volume GE Read Oct 5, 2026
UEF 0.63 0.63 GE Read Oct 5, 2026
First-hour rating 72 gal 72 gal GE Read Oct 5, 2026

Certified figures by listed model

Model numberStorage volume (gal)UEFFirst-hour rating (gal)Recovery efficiencyDraw pattern
GG40S**AYV01400.637274%Medium

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

Sold as 40 gallons, it holds 40 gallons in the test. It delivers 72 gallons of hot water in the test's first hour. That is 32 gallons more than its tank holds, since it reheats during the hour. Of 763 gas storage models, 488 give more hot water in the first hour. The median gas storage model gives 78 gallons in the first hour of the test.

On Oct 26, 2026, this heater was not listed as ENERGY STAR certified. In tests, 63% of the energy went to hot water, so its UEF is 0.63. The daily hot water use in the test, called its draw pattern, was medium. Its UEF is lower than that of 61 of the 288 gas storage models with its draw pattern. On its draw pattern, the median gas storage UEF is 0.60. Of the energy spent to reheat water, 74% goes into it (its recovery efficiency).

Updated Oct 26, 2026 · Methodology

Not covered

  • Changes to an advertised figure after the date beside it.