RELIANCE WATER HEATERS HPTA-80 2**
3.88 UEF DOE CCD · 2026-09-19Grade B: where this UEF sits among the 194 models in its class, lowest (G) to highest (A). A position, not an official label. How the grade is set
An electric tank, high draw pattern (a larger household, or one where showers and laundry overlap).
Checking this model's energy use? RELIANCE WATER HEATERS HPTA-80 2** uses 1,279 kWh a year at the high draw pattern, the standard daily hot-water usage DOE tests against. That is 27 kWh below the 1,306 kWh class median for registered electric tanks.
Energy use per year
1,279 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 1,306 kWh for the 194 models registered in the same heater type and draw pattern; it ranks 72 of 194, lowest energy first.
Solid line: this model (1,279 kWh). Dashed line: the class median.
Min 1,002 kWh Median 1,306 kWh Max 5,334 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
- 3.88 DOE CCD · 2026-09-19 Compared only with other models registered as an electric tank at the high draw pattern.
- Draw Pattern the standard daily usage profile DOE tests the unit against
- High 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
- 95 gal DOE CCD · 2026-09-19
- Rated Storage Volume the tank size in gallons
- 81 gal DOE CCD · 2026-09-19
- On the market since (ENERGY STAR) the date the manufacturer told ENERGY STAR the model went on sale
- 2024-03-01 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)
- Yes (CTA-2045-A,CTA-2045-B) 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
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.
The annual energy figure on this page does not depend on this range and is unaffected.
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.
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 3.88 · Grade B Price it on your ZIP
The registry lists a UEF, the ratio of hot water delivered to energy used, of 3.88 for this model. This site did not take the annual figure from the registry. It computed 1,279 kWh from that UEF and the DOE test's daily hot-water draw for the high draw pattern. The UEF and the test draw are the only two inputs to that figure. The source is DOE CCD, retrieved 2026-09-19, and the figure applies to electricity at that test draw only. Other hot-water usage is not modeled, and the methodology page explains how the annual cost is calculated.
The class here is the 194 models registered as an electric tank at the high draw pattern. Their median annual energy use is 1,306 kWh. This model uses 27 kWh less than that median, at 1,279 kWh a year. It has the 72nd lowest energy use of 194 models, in the second-lowest quarter of its class. The ranking compares energy use at the test draw only, not hot-water output or how the unit performs in a given home. Models outside this class can be compared through the water heater selector by fuel, space and size.
The high draw pattern describes a larger household, or one where showers and laundry overlap. Its first hour rating, the gallons of hot water available in the first hour from a full tank, is 95 gallons. The rated volume is 81 gallons, and the 1,279 kWh figure does not describe a household with a lower draw pattern. Running cost depends on your own electricity rate, so this page states none. The cost calculator computes it from your ZIP at 1,279 kWh a year. An installed price range is not published, because this model's ratings lie outside the range the cost database was fitted on. To find a same-class unit, use replacement by model number.
DOE CCD · 2026-09-19