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GE GE40T12BLM01

GE GE40T12BLM01 is in the DOE listing as of Oct 19, 2026.

  • Electric storage water heater
  • 2 listed models

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

Its figures are also listed under GE GE40S10BAM01.

Storage volume
40gallons
UEF
0.92Uniform energy factor
First-hour rating
66gallonsHot water in the first hour
See it among every electric storage model

Advertised and certified figures

GE GE40T12BLM01: advertised and certified
GE GE40T12BLM01: advertised and certified Size: advertised 40 gal, certified 40 gal (advertised nominal size, certified storage volume). UEF: advertised 0.92, certified 0.92. First-hour rating: advertised 66 gal, certified 66 gal. Size · advertised nominal size, certified storage volume Advertised 40 gal Certified 40 gal UEF Advertised 0.92 Certified 0.92 First-hour rating Advertised 66 gal Certified 66 gal
FigureAdvertisedCertifiedAdvertiserRead
Size 40 gal, nominal size 40 gal storage volume GE Read Oct 5, 2026
UEF 0.92 0.92 GE Read Oct 5, 2026
First-hour rating 66 gal 66 gal GE Read Oct 5, 2026

Certified figures by listed model

Model numberStorage volume (gal)UEFFirst-hour rating (gal)Recovery efficiencyDraw pattern
GE40T10BLM01400.926698%Medium
GE40T12BLM01400.926698%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. Starting full, it gives 66 gallons of hot water in its first hour of use. Reheating lets it give 26 gallons beyond the 40 gallons in its tank. Among 477 electric storage models, 59 have a higher first-hour rating. 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). Its test simulated a day of medium hot water use (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).

Its 2 model numbers are GE40T10BLM01 and GE40T12BLM01. All of its test figures are shared by one other basic model. For the full group, see the GE GE40S10BAM01.

Also listed as

They carry every figure in the table above.

Updated Oct 19, 2026 · Methodology

Not covered

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