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GE GE40L08BSM01

GE GE40L08BSM01 is in the DOE listing as of Oct 26, 2026.

It has a labeled size of 40 gallons, a certified storage volume of 36 gallons, a certified UEF of 0.92, and a certified first-hour rating of 63 gallons of hot water.

Its advertised first-hour rating of 63 gal from GE matches the certified 63 gal (Read Oct 5, 2026).

  • Electric storage water heater
  • 1 listed model

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

Storage volume
36gallons
UEF
0.92Uniform energy factor
First-hour rating
63gallonsHot water in the first hour
See it among every electric storage model

Advertised and certified figures

GE GE40L08BSM01: advertised and certified
GE GE40L08BSM01: advertised and certified Size: advertised 40 gal, certified 36 gal (advertised nominal size, certified storage volume). Size: advertised 36 gal, certified 36 gal (certified storage volume). First-hour rating: advertised 63 gal, certified 63 gal. Size · advertised nominal size, certified storage volume Advertised 40 gal Certified 36 gal Size · certified storage volume Advertised 36 gal Certified 36 gal First-hour rating Advertised 63 gal Certified 63 gal
FigureAdvertisedCertifiedAdvertiserRead
Size 40 gal, nominal size 36 gal storage volume GE Read Oct 5, 2026
Size 36 gal 36 gal storage volume GE Read Oct 5, 2026
First-hour rating 63 gal 63 gal GE Read Oct 5, 2026

Certified figures by listed model

Model numberStorage volume (gal)UEFFirst-hour rating (gal)Recovery efficiencyDraw pattern
GE40L08BSM01360.926398%Medium

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

It holds 36 gallons in the test, 4 gallons less than its 40-gallon sold size. Over one hour from a full tank, it gave 63 gallons in the test (its first-hour rating). That is 27 gallons more than its tank holds, since it reheats during the hour. In the first hour, 99 of the 477 electric storage models give more hot water. The median electric storage model gives 55 gallons in its first hour.

In tests, 92% of the energy it uses ends up as hot water (UEF 0.92). The daily hot water use in the test, called its draw pattern, was medium. Among 297 electric storage models on its draw pattern, 81 have a higher UEF. For its type and draw pattern, its UEF sits at the median. The water took in 98% of the energy used to reheat it (its recovery efficiency).

Updated Oct 26, 2026 · Methodology

Not covered

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