FRIEDRICH PROE28 S2 RH93 SB
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).
If you are checking the FRIEDRICH PROE28 S2 RH93 SB, this electric tank uses 2,439 kWh of electricity a year at the federal test's daily hot-water draw. That figure applies to the low draw pattern, the standard daily hot-water usage DOE tests against. It equals the median of 163 comparable models, 2,439 kWh, a difference of 0 kWh.
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
- 48 gal DOE CCD · 2026-09-19
- Rated Storage Volume the tank size in gallons
- 26 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 FRIEDRICH model on file
What this brand files, by heater type.
UEF 0.92 · Grade G Price it on your ZIP
The 2,439 kWh figure is computed by this site, not taken from the registry. It combines the registry's UEF, the ratio of hot water delivered to energy used, with the DOE test's daily hot-water draw for the low draw pattern. This model's UEF is 0.92. The low draw pattern represents a one- or two-person household, so the figure holds for that usage only. The figure does not apply to heavier daily use, and the data gives no value for it. The registry values come from the DOE CCD, retrieved 2026-09-19. How the annual cost is calculated sets out the full method.
Among the 163 models registered as an electric tank at the low draw pattern, this unit ranks 19th lowest in energy use. That places it in the lowest quarter of its class. The summary above shows that its figure also sits at the class median. The data does not say how many models share that median value. Its first hour rating, the gallons of hot water available in the first hour from a full tank, is 48 gallons. The rated volume is 26 gallons. A household needing more than 48 gallons in its first hour of use would exceed this rating. The selector by fuel, space and size compares other units on those terms.
Running cost is not stated in this text. It depends on your own utility's electricity tariff, so the page computes it from your ZIP and the 2,439 kWh yearly figure at the low draw pattern. The cost calculator on your own ZIP shows that result. No cost figure is estimated here. 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 that range is not stretched past it. To check a same-class replacement, search by model number starting from PROE28 S2 RH93 SB.
DOE CCD · 2026-09-19