Hot Water List

RELIANCE WATER HEATERS ENS-50 1**

RELIANCE WATER HEATERS ENS-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 ENS-50 1**.

Certified figures

Storage volume
46gallons
UEF
0.92Uniform energy factor
First-hour rating
57gallonsHot water in the first hour

Advertised and certified figures

RELIANCE WATER HEATERS ENS-50 1**: advertised and certified
RELIANCE WATER HEATERS ENS-50 1**: advertised and certified Size: advertised 50 gal, certified 46 gal (advertised nominal size, certified storage volume). Size: advertised 46 gal, certified 46 gal (certified storage volume). UEF: advertised 0.92, certified 0.92. First-hour rating: advertised 57 gal, certified 57 gal. Size · advertised nominal size, certified storage volume Advertised 50 gal Certified 46 gal Size · certified storage volume Advertised 46 gal Certified 46 gal UEF Advertised 0.92 Certified 0.92 First-hour rating Advertised 57 gal Certified 57 gal
RELIANCE WATER HEATERS ENS-50 1**: advertised figures, where and when read
FigureAdvertisedCertifiedAdvertiserRead
Size 50 gal, nominal size 46 gal storage volume RELIANCE WATER HEATERS Read Oct 4, 2026
Size 46 gal 46 gal storage volume RELIANCE WATER HEATERS Read Oct 4, 2026
UEF 0.92 0.92 RELIANCE WATER HEATERS Read Oct 4, 2026
First-hour rating 57 gal 57 gal RELIANCE WATER HEATERS Read Oct 4, 2026

Certified figures by listed model

RELIANCE WATER HEATERS ENS-50 1**: certified figures by listed model
Model numberStorage volume (gal)UEFFirst-hour rating (gal)Recovery efficiencyDraw pattern
6-50-EOHRS 1**460.925798%Medium
6-50-EORS 1**460.925798%Medium
9-50-EORS 1**460.925798%Medium

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

It holds 46 gallons in the test, 4 gallons less than its 50-gallon sold size. Over one hour from a full tank, it gave 57 gallons in the test (its first-hour rating). Reheating lets it give 11 gallons beyond the 46 gallons in its tank. In the first hour, 177 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, 92% of the energy went to hot water, so its UEF is 0.92. Its test ran at the medium level of daily hot water use. Its UEF is lower than that of 81 of the 297 electric storage models with its draw pattern. For its type and draw pattern, its UEF sits at the median. Of the energy spent to reheat water, 98% goes into it (its recovery efficiency).

Its 3 model numbers are 6-50-EOHRS 1**, 6-50-EORS 1**, and 9-50-EORS 1**. There are 5 more basic models with the same test figures. Each of them is listed under a different brand. For the full group, see the A. O. Smith ENS-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.