Rheem PROE36 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).
If you are checking the Rheem PROE36 S2 RH95, an electric tank, it uses 2,439 kWh a year. That is at the low draw pattern, the standard daily hot-water usage DOE tests against for a small household. It equals the class median of 2,439 kWh, a difference of 0 kWh, among 163 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
- 34 gal DOE CCD · 2026-09-19
- Rated Storage Volume the tank size in gallons
- 33 gal DOE CCD · 2026-09-19
What it costs to install
$1,548–$1,727 installed
Not a quote — a modeled range of what installers have charged for this class of unit; your price will vary with labor rates, access, and local code requirements.
Escalation indexes: equipment (BLS PPI) latest available: August 2026; labor (BLS ECI) latest available: April 2026 to June 2026.
NLR REMDB (BLS PPI/ECI escalated) · 2026-04-01Safety 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 registry lists this Rheem PROE36 S2 RH95 with a UEF, the ratio of hot water delivered to energy used, of 0.92. The registry does not publish an annual figure. This site computed 2,439 kWh a year from that UEF and the DOE test's daily hot-water draw for the low draw pattern. The source is DOE CCD, retrieved 2026-09-19. The figure applies only at that test draw. A household that uses more or less hot water than the test will see a different result. The page on how the annual cost is calculated describes the method.
This unit is 19th lowest energy use of 163 models registered as an electric tank at the low draw pattern. The class median is 2,439 kWh, and this model differs from it by 0 kWh. Even so, it sits in the lowest quarter of its class for energy use. The data supplied does not say how models with equal energy use are ordered. The ranking compares energy at the same draw only. It says nothing about capacity. For capacity, the first hour rating, the gallons of hot water available in the first hour from a full tank, is 34 gallons. The rated volume is 33 gallons.
The 2,439 kWh figure, equal to the class median of 2,439 kWh, suits a check for a small household that matches the low draw pattern. It does not describe a household that draws more hot water than the test. The data here gives no annual figure for other draw patterns. The running cost is not stated in the text. It depends on your own utility electricity rate, so the cost calculator for your ZIP computes it from your location. To find a same-class unit by model number, use the replacement finder. To filter by fuel, space and size, use the water heater selector.
DOE CCD · 2026-09-19