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U.S. Craftmaster ENLB-50 1**

U.S. Craftmaster ENLB-50 1** is in the DOE listing as of Oct 19, 2026.

  • Electric storage water heater
  • 1 listed model

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

Its figures are also listed under A. O. Smith ENLB-50 1**.

Storage volume
44gallons
UEF
0.93Uniform energy factor
First-hour rating
60gallonsHot water in the first hour
See it among every electric storage model

Advertised and certified figures

U.S. Craftmaster ENLB-50 1**: advertised and certified
U.S. Craftmaster ENLB-50 1**: advertised and certified Size: advertised 48 gal, certified 44 gal (advertised nominal size, certified storage volume). Size: advertised 44 gal, certified 44 gal (certified storage volume). UEF: advertised 0.93, certified 0.93. First-hour rating: advertised 60 gal, certified 60 gal. Size · advertised nominal size, certified storage volume Advertised 48 gal Certified 44 gal Size · certified storage volume Advertised 44 gal Certified 44 gal UEF Advertised 0.93 Certified 0.93 First-hour rating Advertised 60 gal Certified 60 gal
FigureAdvertisedCertifiedAdvertiserRead
Size 48 gal, nominal size 44 gal storage volume U.S. Craftmaster Read Oct 5, 2026
Size 44 gal 44 gal storage volume U.S. Craftmaster Read Oct 5, 2026
UEF 0.93 0.93 U.S. Craftmaster Read Oct 5, 2026
First-hour rating 60 gal 60 gal U.S. Craftmaster Read Oct 5, 2026

Certified figures by listed model

Model numberStorage volume (gal)UEFFirst-hour rating (gal)Recovery efficiencyDraw pattern
NE2F50LBD 1**440.936098%Medium

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

It holds 44 gallons in the test, 4 gallons less than its 48-gallon sold size. It delivers 60 gallons of hot water in the test's first hour. Its tank holds 44 gallons, so reheating adds 16 gallons during the first hour. In the first hour, 145 of the 477 electric storage models give more hot water. Among electric storage models, the median first-hour rating is 55 gallons.

In tests, 93% of the energy it uses ends up as hot water (UEF 0.93). In the test, daily hot water use was set to medium (its draw pattern). Of 297 electric storage models with the same draw pattern, 20 have a higher UEF and 216 a lower one. For its type and draw pattern, the median UEF is 0.92. When it reheats water in the test, 98% of the energy it uses ends up in the water.

All of its test figures are shared by 5 other basic models. They are listed under 5 other brands, one each. For the full group, see the A. O. Smith ENLB-50 1** page.

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.