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Lennox WHES030L45TN240B****

Lennox WHES030L45TN240B**** 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 AMERICAN STANDARD WATER HEATERS ENS30LUB*.

Storage volume
28gallons
UEF
0.92Uniform energy factor
First-hour rating
40gallonsHot water in the first hour
See it among every electric storage model

Advertised and certified figures

Lennox WHES030L45TN240B****: advertised and certified
Lennox WHES030L45TN240B****: advertised and certified Size: advertised 30 gal, certified 28 gal (advertised nominal size, certified storage volume). UEF: advertised 0.92, certified 0.92. First-hour rating: advertised 40 gal, certified 40 gal. Size · advertised nominal size, certified storage volume Advertised 30 gal Certified 28 gal UEF Advertised 0.92 Certified 0.92 First-hour rating Advertised 40 gal Certified 40 gal
FigureAdvertisedCertifiedAdvertiserRead
Size 30 gal, nominal size 28 gal storage volume Lennox Read Oct 5, 2026
UEF 0.92 0.92 Lennox Read Oct 5, 2026
First-hour rating 40 gal 40 gal Lennox Read Oct 5, 2026

Certified figures by listed model

Model numberStorage volume (gal)UEFFirst-hour rating (gal)Recovery efficiencyDraw pattern
WHES030L45TN240B****280.924098%Low

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

It holds 28 gallons in the test, 2 gallons less than its 30-gallon sold size. It delivers 40 gallons of hot water in the test's first hour. Its tank holds 28 gallons, so reheating adds 12 gallons during the first hour. Of 477 electric storage models, 444 give more hot water in the first hour. Among electric storage models, the median first-hour rating is 55 gallons.

In tests, 92% of the energy went to hot water, so its UEF is 0.92. Its test simulated a day of low hot water use (its draw pattern). Among 157 electric storage models on its draw pattern, 12 have a higher UEF. Its UEF is the median for its type and draw pattern. When it reheats water in the test, 98% of the energy it uses ends up in the water.

Its test figures match those of 2 other basic models. The AMERICAN STANDARD WATER HEATERS and Ariston brands list one or more of them. For the full group, see the AMERICAN STANDARD WATER HEATERS ENS30LUB* 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.