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Lochinvar ENLB-50 1**

Lochinvar 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

Lochinvar ENLB-50 1**: advertised and certified
Lochinvar 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 Lochinvar Read Oct 4, 2026
Size 44 gal 44 gal storage volume Lochinvar Read Oct 4, 2026
UEF 0.93 0.93 Lochinvar Read Oct 4, 2026
First-hour rating 60 gal 60 gal Lochinvar Read Oct 4, 2026

Certified figures by listed model

Model numberStorage volume (gal)UEFFirst-hour rating (gal)Recovery efficiencyDraw pattern
LES-50B 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. Starting full, it gives 60 gallons of hot water in its first hour of use. That is 16 gallons more than its tank holds, since it reheats during the hour. In the first hour, 145 of the 477 electric storage models give more hot water. The median electric storage model gives 55 gallons in the first hour of the test.

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). Among 297 electric storage models on its draw pattern, 20 have a higher UEF. For its type and draw pattern, the UEF runs from 0.91 to 0.95. Of the energy spent to reheat water, 98% goes into it (its recovery efficiency).

All of its test figures are shared by 5 other basic models. Each of the 5 other brands lists one of them. For the full group, see the A. O. Smith ENLB-50 1**.

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.