RELIANCE WATER HEATERS HPTU-50N 1**
3.45 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 checking the RELIANCE WATER HEATERS HPTU-50N 1**, an electric tank water heater, it uses 942 kWh of electricity a year at the medium draw pattern, the standard daily hot-water usage DOE tests against. That is 2,589 kWh below its class median of 3,531 kWh, and it ranks 93rd lowest of 426 models.
Energy use per year
942 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 93 of 426, lowest energy first.
Solid line: this model (942 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
- 3.45 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
- 66 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
- 2019-04-05 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
$3,022–$4,110 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 RELIANCE WATER HEATERS model on file
What this brand files, by heater type.
UEF 3.45 · Grade B Price it on your ZIP
The registry does not print the 942 kWh figure. This site calculated it from two inputs: the registry's UEF, the ratio of hot water delivered to energy used, and the daily hot-water draw that the DOE test sets for the medium pattern. This model's listed UEF is 3.45, from the DOE CCD retrieved 2026-09-19. The medium pattern represents a typical household's daily use, so the figure applies only at that draw. With a higher or lower daily draw, the yearly figure would be different. This data does not include energy use at other draw patterns. The site explains each step in how the annual energy and cost figures are calculated.
All 426 models in this comparison are registered as an electric tank at the medium draw pattern. Their median energy use is 3,531 kWh a year. This model is 2,589 kWh below that median, which puts it in the lowest quarter of its class for energy use. Its rated volume is 46 gallons. Its first hour rating, the gallons of hot water available in the first hour from a full tank, is 66 gallons. If you are checking a job, look at both figures. The energy rank holds at the medium pattern, and the first hour rating shows supply at peak. The rank's conditions fit a home whose busiest hour needs no more than 66 gallons. To compare other fuels and sizes, use the water heater selector by fuel, space and size.
The model is not rated to supply a home whose busiest hour needs more than 66 gallons. For that home, the 93rd rank among 426 models does not describe the whole picture. The 942 kWh figure also does not carry over to a home with a different daily draw. This page does not state a running cost, because the cost depends on your own electricity tariff. You can work it out with the cost calculator for your own ZIP. The installed price range has its own block, with its source and date. That range is a modeled estimate, not a quote. To check a same-class alternative, find a replacement by model number.
DOE CCD · 2026-09-19