Rheem PROPH50 T0 RH120-M
3 UEF DOE CCD · 2026-09-19Grade C: where this UEF sits among the 426 models in its class, lowest (G) to highest (A). A position, not an official label. How the grade is set
An electric tank, medium draw pattern (a typical three- or four-person household, about 55 gallons on a busy morning).
You are checking the Rheem PROPH50 T0 RH120-M, an electric tank. This site computes its use at 1,083 kWh of electricity a year at the medium draw pattern, the standard daily hot-water usage DOE tests against. That sits 2,448 kWh below the class median of 3,531 kWh, ranking 116th lowest of 426.
Energy use per year
1,083 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 below the median of 3,531 kWh for the 426 models registered in the same heater type and draw pattern; it ranks 116 of 426, lowest energy first.
Solid line: this model (1,083 kWh). Dashed line: the class median.
Min 773 kWh Median 3,531 kWh Max 3,569 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
- 3 DOE CCD · 2026-09-19 Compared only with other models registered as an electric tank at the medium draw pattern.
- Draw Pattern the standard daily usage profile DOE tests the unit against
- Medium 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
- 55 gal DOE CCD · 2026-09-19
- Rated Storage Volume the tank size in gallons
- 46 gal DOE CCD · 2026-09-19
- On the market since (ENERGY STAR) the date the manufacturer told ENERGY STAR the model went on sale
- 2022-04-21 ENERGY STAR · 2026-09-19
- Connected / demand response (ENERGY STAR) whether the unit can take signals from your utility to shift when it heats, and by which standard (such as CTA-2045)
- No ENERGY STAR · 2026-09-19
- Refrigerant and GWP (ENERGY STAR) the refrigerant a heat pump unit uses and its global warming potential, a leak's climate effect relative to carbon dioxide (CO2 = 1)
- R-134a, GWP 1430 ENERGY STAR · 2026-09-19
What it costs to install
$2,970–$3,660 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 · 2026-09-24Does it fit your space?
Enter your own numbers below — this compares them to what ENERGY STAR publishes for this model, it does not tell you what to buy.
- Compressor operating range (ENERGY STAR)
- the air temperatures around the unit in which its heat pump runs; outside this range the heat pump stops
- Dimensions (ENERGY STAR)
- the unit's filed height, width, depth or tank diameter, in inches
- Input voltage and maximum current (ENERGY STAR)
- the circuit voltage the unit is certified on and the most current it draws
What 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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What size heat pump water heater do I need?
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 heat pump water heaters
Electric tanks that file a UEF of 2.0 or more — the registry has no separate heat pump type, so this site draws the line there.
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All 120-volt plug-in heat pump water heaters
Heat pump models whose ENERGY STAR filing lists a 120 V input — the kind that can run from a standard outlet instead of a new 240 V circuit.
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Every Rheem model on file
What this brand files, by heater type.
UEF 3 · Grade C Price it on your ZIP
The 1,083 kWh figure does not appear in the registry itself. This site derived it from two inputs. One is the registry's UEF, the ratio of hot water delivered to energy used. The other is the DOE test's daily hot-water draw for the medium pattern. The registry lists a UEF of 3 for this model in the DOE CCD, retrieved 2026-09-19. The figure applies only at that test draw, not to any particular home. The steps behind it are set out in how the annual cost is calculated. The registry also lists a first hour rating, the gallons of hot water available in the first hour from a full tank. For this model it is 55 gallons, from a rated volume of 46 gallons.
The medium draw pattern stands for a typical three- or four-person household. The class comparison above covers only the 426 models registered as an electric tank at that pattern. Within that group, this model falls in the second-lowest quarter for energy use. Models ranked ahead of its 116th place use less electricity at the same test draw. Other fuels and other draw patterns are not part of this comparison. A household that uses much more or much less hot water than the medium pattern will not match 1,083 kWh. To check another model in the same class, you can find a same-class replacement by model number. For a different fuel or size, the selector by fuel, space and size lists other classes.
The running cost is not stated in this text, because it depends on your own utility's electricity tariff. The page calculates it from your ZIP instead, using 1,083 kWh at the medium draw pattern. You can run it with the cost calculator on your own ZIP. At any single rate, the 2,448 kWh gap below the class median is electricity this model does not use at the test draw. How much electricity it uses in your home is not available, since the figure covers only the federal test's daily draw. The installed price range appears in its own block, with its source and date. That range is a modeled installed cost, not a quote, and this text does not repeat its figures.
DOE CCD · 2026-09-19