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State HETF-50 1**

State HETF-50 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 HETF-50 1**.

Storage volume
45gallons
UEF
0.92Uniform energy factor
First-hour rating
74gallonsHot water in the first hour
See it among every electric storage model

Advertised and certified figures

State HETF-50 1**: advertised and certified
State HETF-50 1**: advertised and certified Size: advertised 50 gal, certified 45 gal (advertised nominal size, certified storage volume). First-hour rating: advertised 62 gal, certified 74 gal. Size · advertised nominal size, certified storage volume Advertised 50 gal Certified 45 gal First-hour rating Advertised 62 gal Certified 74 gal
FigureAdvertisedCertifiedAdvertiserRead
Size 50 gal, nominal size 45 gal storage volume State Read Oct 5, 2026
First-hour rating 62 gal 74 gal State Read Oct 5, 2026

Certified figures by listed model

Model numberStorage volume (gal)UEFFirst-hour rating (gal)Recovery efficiencyDraw pattern
EE6-50-DURT 1**450.927498%Medium
EEA8-50-DFRT 1**450.927498%Medium
EEX-50-DURT 1**450.927498%Medium

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

It holds 45 gallons in the test, 5 gallons less than its 50-gallon sold size. Starting full, it gives 74 gallons of hot water in its first hour of use. Reheating lets it give 29 gallons beyond the 45 gallons in its tank. In the first hour, 23 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 the test, 8% of its energy does not reach the hot water (UEF 0.92). Its test ran at the medium level of daily hot water use. Of 297 electric storage models with the same draw pattern, 81 have a higher UEF and 2 a lower one. Its UEF is the median for its type and draw pattern. Of the energy spent to reheat water, 98% goes into it (its recovery efficiency).

Its 3 model numbers are EE6-50-DURT 1**, EEA8-50-DFRT 1**, and EEX-50-DURT 1**. All of its test figures are shared by 4 other basic models. Each of them is listed under a different brand. For the full group, see the A. O. Smith HETF-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.