Rheem PROPH40 T2 RH375-15
651 kWh a year DOE CCD (opens in a new tab) (the U.S. Department of Energy’s Compliance Certification Database) · 2026-10-25UEF 3.45 filed efficiency; the yearly figure is computed from it
Grade A: where this UEF sits among the 170 models in its class, lowest (G) to highest (A). A position, not an official label. How the grade is set
A heat pump water heater (filed by DOE as an electric tank, UEF 2.0 and up), low draw pattern (a one- or two-person household).
Label numbers this filing covers (3)
The model number on your rating plate may be any of these; each is filed under this one listing.
- CPROPH40 T2 RH400-15
- ECEPH40 T2 RH400-15
- PROPH40 T2 RH400-15
If you are checking this unit, the Rheem PROPH40 T2 RH375-15 uses 651 kWh of electricity a year. That figure belongs to the low draw pattern, the standard daily hot-water usage DOE tests against, here a one- or two-person household. It sits 1,788 kWh below the class median of 2,439 kWh, across 170 comparable electric tank models.
Energy use per year
651 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.
This model is in the lowest quarter of its class for energy use. That is below the median of 2,439 kWh for the 170 models registered in the same heater type and draw pattern; it ranks 1 of 170, lowest energy first.
Among the 11 heat pump water heaters at this draw pattern alone, it ranks 1 by lowest yearly energy.
This model 651 kWh
Median 2,439 kWh
Min 651 kWh Max 2,550 kWh
What it costs to run where you live
What the registry files
From DOE CCD · 2026-10-25
- UEF (Uniform Energy Factor) how much hot water you get for each unit of energy the heater uses
- 3.45 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
- First Hour Rating how many gallons of hot water the unit can deliver in one hour, starting from a full tank
- 46 gal
- Rated Storage Volume the tank size in gallons
- 36 gal Rated volume is the size the registry files. The number in a model name is the maker's nominal size and can differ: a "40-gallon" model may be rated at 36.
From ENERGY STAR · 2026-10-25
- On the market since (ENERGY STAR) the date the manufacturer told ENERGY STAR the model went on sale
- 2020-04-30
- 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)
- Yes (CTA-2045-B)
- 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
Installed cost and service life
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.
Ask installers for a written quote that names this model number; heat pump installs are quoted unit by unit. State programs that pay toward one are listed on the rebates page.
Service life: DOE’s cost database assumes 14.8 years for heat pump tanks. That is a class assumption, not this model’s rating or a warranty — no registry publishes either.
NLR REMDB v4.0.0 · 2026-09-07Rebates this model qualifies for
- Efficiency Arizona, Arizona: last checked 2026-10-21; confirm on the program's page
- Home Electrification and Appliance Rebates (HEAR), Colorado: not paying now
- High-Efficiency Electric Home Rebates (HEEHR), Florida: not paying now
- Home Electrification and Appliance Rebates (HEAR), Georgia: not paying now
- Home Electrification and Appliance Rebate (HEAR), Texas: not paying now
- Home Appliance Rebate Program (HARP), Washington: not paying now
This model meets each program's model rules. Your household's own rules (income, what it replaces) are on each state page. Every state program on file.
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 · 2026-09-24Does 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 — that have their own comparison page.
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.
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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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Clothes washers
What a washer uses in a year, including the hot water it draws.
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Every Rheem model on file
What this brand files, by heater type.
651 kWh/yr Grade A Cost on your ZIP
The registry lists a UEF, the ratio of hot water delivered to energy used, of 3.45 for this model. The registry does not state the annual figure. This site computed 651 kWh from that UEF and the DOE test's daily hot-water draw for the low draw pattern. The source is the DOE CCD, retrieved 2026-10-25. Among the 170 models registered as an electric tank at this draw pattern, it ranks 1st lowest for energy use. That puts it in the lowest quarter of its class. The class median is 2,439 kWh, so the gap is 1,788 kWh. The calculation method sets out each step.
The figure fits a household that matches the low draw pattern. The first hour rating, the gallons of hot water available in the first hour from a full tank, is 46 for this model. The rated volume is 36 gallons. A household that draws more hot water than the federal test assumes will use more than 651 kWh a year. This site has no figure for those cases, so the size of the increase is not available. A larger household can start from the water heater selector, which filters by fuel, space and size.
Read the rest
The running cost depends on your own utility electricity tariff, so the text states none. The cost calculator applies the rate for your ZIP to 651 kWh a year at the low draw pattern. An installed price range is not published for the PROPH40 T2 RH375-15. Its ratings lie outside the range the cost database's model was fitted on, and that range is not stretched past its limit. To compare against another unit of the same class, you can find a replacement by model number.