Hot Water List

Ruud PROE28 S2 RH95

Ruud PROE28 S2 RH95 is in the DOE listing as of Oct 19, 2026.

  • Electric storage water heater
  • 4 listed models

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

Its figures are also listed under Rheem PROE28 S2 RH95.

Certified figures

Storage volume
25gallons
UEF
0.92Uniform energy factor
First-hour rating
45gallonsHot water in the first hour

Advertised and certified figures

Ruud PROE28 S2 RH95: advertised and certified
Ruud PROE28 S2 RH95: advertised and certified Size: advertised 28 gal, certified 25 gal (advertised nominal size, certified storage volume). Size · advertised nominal size, certified storage volume Advertised 28 gal Certified 25 gal
Ruud PROE28 S2 RH95: advertised figures, where and when read
FigureAdvertisedCertifiedAdvertiserRead
Size 28 gal, nominal size 25 gal storage volume Ruud Read Oct 4, 2026

Certified figures by listed model

Ruud PROE28 S2 RH95: certified figures by listed model
Model numberStorage volume (gal)UEFFirst-hour rating (gal)Recovery efficiencyDraw pattern
ELDS30-FTB250.924598%Low
ELDS30-TB250.924598%Low
PROE28 S1 RU95250.924598%Low
PROE28 S2 RU95250.924598%Low

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

It holds 25 gallons in the test, 3 gallons less than its 28-gallon sold size. Over one hour from a full tank, it gave 45 gallons in the test (its first-hour rating). That is 20 gallons more than its tank holds, since it reheats during the hour. Of 477 electric storage models, 377 give more hot water in the first hour. The median electric storage model gives 55 gallons in the first hour of the test.

In tests, 92% of the energy it uses ends up as hot water (UEF 0.92). In the test, daily hot water use was set to low (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.

All 4 of its model numbers carry the same certified figures. There are 3 more basic models with the same test figures. Of those, one or more are under the Friedrich, Rheem, and Richmond brands. For the full group, see the Rheem PROE28 S2 RH95.

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.