Rheem PROPH50 T0 RH120
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).
If you are verifying the Rheem PROPH50 T0 RH120, it uses 1,083 kWh of electricity a year at the medium draw pattern, the standard daily hot-water usage DOE tests against. That figure is 2,448 kWh below the 3,531 kWh median of the 426 electric tank models registered at the same draw pattern.
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
- 51 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
- 2022-07-15 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
-
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.
-
Find a water heater that fits
Three questions — fuel, hot water need, install space — narrow every model on file to the ones that fit.
-
What a water heater costs to run
Prices a unit's efficiency against your own utility's filed tariff for your ZIP code.
-
What size heat pump water heater do I need?
Answered from what models in this size actually file.
-
Water heaters
Every model on file with the Department of Energy, by heater type.
-
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.
-
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.
-
Every Rheem model on file
What this brand files, by heater type.
UEF 3 · Grade C Price it on your ZIP
The registry does not print the 1,083 kWh figure. This site calculated it from the registry's UEF, the ratio of hot water delivered to energy used, and the DOE test's daily hot-water draw for the medium pattern. This model's UEF is 3, from the DOE CCD retrieved on 2026-09-19. Among the 426 electric tank models at the medium draw pattern, it ranks 116th lowest in energy use. That puts it in the second-lowest quarter of its class for energy use. The gap to the class median, given above, applies only at the test's daily draw. With a larger or smaller daily draw, the annual figure would change. This page has no value for any other draw.
The medium draw pattern represents a typical mid-size household with a busy morning of hot-water use. This unit's first hour rating, the gallons of hot water available in the first hour from a full tank, is 51 gallons. Its rated volume is 46 gallons. A plumber or seller checking a match can compare these two figures with the household's peak-hour demand. The 1,083 kWh figure does not cover a home that uses more hot water than the medium pattern on a busy morning. This page has no annual energy figure for that home. Models registered at other draw patterns can be listed with the selector by fuel, space and size.
This text gives no running cost because the cost depends on your own utility's electricity tariff. The cost comes from 1,083 kWh and your rate, so the same model's cost differs from one service area to another. The cost calculator for your own ZIP works out that cost with your local tariff. The method behind the annual cost lists the inputs it uses and where they come from. The installed price range appears on this page in a separate block, with its source and date. That range is a modeled installed-cost range, not a quote. If you are matching an existing unit, you can find a same-class replacement by model number by starting from PROPH50 T0 RH120.
DOE CCD · 2026-09-19