ARISTON ARIHPWH-65
3.85 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).
If you are checking the ARISTON ARIHPWH-65 for a larger household, it uses 1,289 kWh of electricity a year at the high draw pattern, the standard daily hot-water usage DOE tests against. That is 17 kWh below the class median of 1,306 kWh, ranking 82nd lowest of 194.
Energy use per year
1,289 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 82 of 194, lowest energy first.
Solid line: this model (1,289 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
- 3.85 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
- 78 gal DOE CCD · 2026-09-19
- Rated Storage Volume the tank size in gallons
- 62 gal DOE CCD · 2026-09-19
- On the market since (ENERGY STAR) the date the manufacturer told ENERGY STAR the model went on sale
- 2024-12-13 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-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
$3,587–$4,661 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 ARISTON model on file
What this brand files, by heater type.
UEF 3.85 · Grade B Price it on your ZIP
The figure of 1,289 kWh is a computed value, not a registry entry. This site derived it from the registry's UEF, the ratio of hot water delivered to energy used, which is 3.85 for this model, and from the daily hot-water draw in the DOE test for the high draw pattern. The fuel is electricity, and the source is DOE CCD, retrieved 2026-09-19. The comparison group is the 194 models registered as an electric tank at the high draw pattern, with a class median of 1,306 kWh. This model sits 17 kWh below that median. That places it 82nd lowest of 194, in the second-lowest quarter of its class for energy use.
The energy figure applies only at the test's high draw pattern, which describes a larger household, or one where showers and laundry overlap. The first hour rating, the gallons of hot water available in the first hour from a full tank, is 78 gallons. The rated volume is 62 gallons. A household that draws less hot water than the test would be expected to use less than 1,289 kWh, and one that draws more would use more. This page has no measured figure for either case. Energy use at other draw patterns is not available here, and the 17 kWh gap to the median is a comparison within the high draw pattern only. To narrow options by fuel, space and size, use the water heater selector.
The running cost is not stated in this text because it depends on your own utility electricity tariff. The cost calculator applies the electricity rate for your ZIP to the 1,289 kWh figure. The calculation method explains how the annual cost is derived from it. The modeled installed-cost range, with its source and date, appears in its own block on the page and is not repeated here. If you are checking a swap, you can find a same-class replacement by model number and compare it with ARISTON ARIHPWH-65 against the class median of 1,306 kWh. The annual figure is computed at the federal test's draw and is not a measurement of your household's use.
DOE CCD · 2026-09-19