Noritz ME50HPT
3.46 UEF DOE CCD · 2026-09-19Grade B: 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 Noritz ME50HPT, an electric tank, it uses an estimated 939 kWh of electricity a year. That figure applies at the medium draw pattern, the standard daily hot-water usage DOE tests against. It sits 2,592 kWh below the median of 3,531 kWh for its class.
Energy use per year
939 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 90 of 426, lowest energy first.
Solid line: this model (939 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
- 3.46 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
- 58 gal DOE CCD · 2026-09-19
- Rated Storage Volume the tank size in gallons
- 47 gal DOE CCD · 2026-09-19
- On the market since (ENERGY STAR) the date the manufacturer told ENERGY STAR the model went on sale
- 2024-07-01 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
- Sound level (ENERGY STAR) how loud the unit is while it runs, in decibels as filed
- 54 dB ENERGY STAR · 2026-09-19
What it costs to install
$3,056–$4,129 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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Every Noritz model on file
What this brand files, by heater type.
UEF 3.46 · Grade B Price it on your ZIP
The 939 kWh figure comes from this site, not from the registry. We calculate it from the registry's UEF, the ratio of hot water delivered to energy used, and the DOE test's daily hot-water draw at the medium draw pattern. For the Noritz ME50HPT, the registered UEF is 3.46. The underlying record comes from the DOE CCD, retrieved 2026-09-19. The figure reflects the federal test condition only. It does not reflect a particular home's water temperature, climate or habits. Our annual energy and cost method for water heaters sets out each step of the calculation.
Within its class, this model ranks 90th lowest energy use of 426 models registered as an electric tank at the medium draw pattern. The class median is 3,531 kWh, so this unit uses 2,592 kWh less under the same test draw. Its first hour rating, the gallons of hot water available in the first hour from a full tank, is 58 gallons, and its rated volume is 47 gallons. A household whose busiest hour needs more hot water than 58 gallons is outside the tested condition. For that case, the water heater selector by fuel, space and size filters by other sizes. You can also find a same-class replacement by model number.
The running cost is not given in this text. It depends on your own utility electricity tariff, and that tariff varies by location. The page multiplies the 939 kWh test figure by the rate for your ZIP in the cost calculator for your own ZIP. If your real hot-water use is above or below the medium draw pattern, your yearly use will also differ from 939 kWh. By how much is not available from the registry. The installed price range appears in its own block with its source and date. It is a modeled range, not a quote from an installer.
DOE CCD · 2026-09-19