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State ENL-30 1**

State ENL-30 1** is in the DOE listing as of Oct 19, 2026.

  • Electric storage water heater
  • 3 listed models

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

Its figures are also listed under A. O. Smith ENL-30 1**.

Storage volume
26gallons
UEF
0.90Uniform energy factor
First-hour rating
44gallonsHot water in the first hour
See it among every electric storage model

Advertised and certified figures

State ENL-30 1**: advertised and certified
State ENL-30 1**: advertised and certified Size: advertised 28 gal, certified 26 gal (advertised nominal size, certified storage volume). Size: advertised 25.6 gal, certified 26 gal (certified storage volume). UEF: advertised 0.90, certified 0.90. First-hour rating: advertised 44 gal, certified 44 gal. Size · advertised nominal size, certified storage volume Advertised 28 gal Certified 26 gal Size · certified storage volume Advertised 25.6 gal Certified 26 gal UEF Advertised 0.90 Certified 0.90 First-hour rating Advertised 44 gal Certified 44 gal
FigureAdvertisedCertifiedAdvertiserRead
Size 28 gal, nominal size 26 gal storage volume State Read Oct 4, 2026
Size 25.6 gal 26 gal storage volume State Read Oct 4, 2026
UEF 0.90 0.90 State Read Oct 4, 2026
First-hour rating 44 gal 44 gal State Read Oct 4, 2026

Certified figures by listed model

Model numberStorage volume (gal)UEFFirst-hour rating (gal)Recovery efficiencyDraw pattern
EN6-30-DOLS 1**260.904498%Low
EN6-30-SOLS 1**260.904498%Low
ESX-30-DOLS 1**260.904498%Low

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

It holds 26 gallons in the test, 2 gallons less than its 28-gallon sold size. Starting full, it gives 44 gallons of hot water in its first hour of use. Its tank holds 26 gallons, so reheating adds 18 gallons during the first hour. In the first hour, 392 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, 90% of the energy it uses ends up as hot water (UEF 0.90). Its test ran at the low level of daily hot water use. Among 157 electric storage models on its draw pattern, 115 have a higher UEF. On its draw pattern, the median electric storage UEF is 0.92. Of the energy spent to reheat water, 98% goes into it (its recovery efficiency).

It is sold as EN6-30-DOLS 1**, EN6-30-SOLS 1**, and ESX-30-DOLS 1**. There are 5 more basic models with the same test figures. Each of the 5 other brands lists one of them. For the full group, see the A. O. Smith ENL-30 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.