Rheem PROE28 S2 RH95
0.92 UEF DOE CCD · 2026-09-19Grade G: where this UEF sits among the 163 models in its class, lowest (G) to highest (A). A position, not an official label. How the grade is set
An electric tank, low draw pattern (a one- or two-person household).
The Rheem PROE28 S2 RH95 uses 2,439 kWh of electricity a year at the low draw pattern, the standard daily hot-water usage DOE tests against, which describes a one- or two-person household. That equals the class median of 2,439 kWh across 163 electric tank models.
Energy use per year
2,439 kWh a year
Computed by this site from the registry's UEF and the federal test's daily hot-water draw for this draw pattern. What it costs depends on the electricity rate where you live.
That is equal to the median of 2,439 kWh for the 163 models registered in the same heater type and draw pattern; it ranks 19 of 163, lowest energy first.
Solid line: this model (2,439 kWh). Dashed line: the class median.
Min 724 kWh Median 2,439 kWh Max 2,550 kWh
What it costs to run where you live
What the registry files
- UEF (Uniform Energy Factor) how much hot water you get for each unit of energy the heater uses
- 0.92 DOE CCD · 2026-09-19 Compared only with other models registered as an electric tank at the low draw pattern.
- Draw Pattern the standard daily usage profile DOE tests the unit against
- Low DOE CCD · 2026-09-19
- First Hour Rating how many gallons of hot water the unit can deliver in one hour, starting from a full tank
- 45 gal DOE CCD · 2026-09-19
- Rated Storage Volume the tank size in gallons
- 25 gal DOE CCD · 2026-09-19
What it costs to install
Not published: Installed cost range
This model's rated tank size lies outside the range NLR REMDB's cost model was fitted on, and the range is not stretched past it.
The annual energy figure on this page does not depend on this range and is unaffected.
Safety record
No CPSC recall names this model.
Checked against the CPSC recall database. CPSC does not publish a model-level match for this product category, so this list is curated by hand from the manufacturer's recall filings.
CPSC · 2026-09-24What these figures mean
How this compares
The closest models in the same class — same fuel, type and draw pattern.
Keep going
How every figure on this page is calculated
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Find what replaces your water heater
Enter the model number off your old unit and see what is on file today, with the yearly cost difference.
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Find a water heater that fits
Three questions — fuel, hot water need, install space — narrow every model on file to the ones that fit.
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What a water heater costs to run
Prices a unit's efficiency against your own utility's filed tariff for your ZIP code.
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Is a 30-gallon water heater enough?
Answered from what models in this size actually file.
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Water heaters
Every model on file with the Department of Energy, by heater type.
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All electric resistance tank water heaters
Electric tanks that file a UEF below 2.0 — heated by elements, not a heat pump.
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Every Rheem model on file
What this brand files, by heater type.
UEF 0.92 · Grade G Price it on your ZIP
The figure of 2,439 kWh is calculated by this site, not published by the registry. It comes from the registry's UEF of 0.92, the ratio of hot water delivered to energy used, and from the daily hot-water draw the federal test applies to the low draw pattern. The source is DOE CCD, retrieved 2026-09-19, and the fuel is electricity. The figure holds only at that test draw. A household that uses more or less hot water than the test assumes will use different energy, and this page has no value for those cases. Against the 163 models registered as an electric tank at the low draw pattern, the median is 2,439 kWh, so the difference is 0 kWh. The unit ranks 19th lowest energy use of 163, which places it in the lowest quarter of its class. Both statements are reported as the data gives them. The data does not show how many models share this figure.
The low draw pattern describes a one- or two-person household, so 2,439 kWh is most relevant to a home with that hot-water use. The unit has a rated volume of 25 gallons and a first hour rating, the gallons of hot water available in the first hour from a full tank, of 45 gallons. A household with heavier use falls outside the pattern this figure describes, and the energy use for that case is not available here. Whether 45 gallons covers a given peak-hour demand depends on that household's own usage, which this page does not measure. Readers who want to compare options by fuel, space and size can use the water heater selector. The registry data used here does not include a measured energy figure at any other draw pattern for this model.
The running cost is not stated in the text because it depends on your own utility electricity rate. The cost calculator computes it from your ZIP, using 2,439 kWh at the low draw pattern. The steps of that calculation are set out in the methodology for water heater costs. A different rate changes the cost of the same 2,439 kWh; it does not change the energy. Because the difference from the class median is 0 kWh, the energy use alone does not separate this model from the typical model among the 163 in its class. An installed price range is not published for this model. Its ratings lie outside the range the cost database's model was fitted on, and the range is not stretched past it.
DOE CCD · 2026-09-19