ARISTON EVR040*2X***
0.94 UEF DOE CCD · 2026-09-19Grade G: 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 ARISTON EVR040*2X***, it uses 3,456 kWh of electricity a year at the federal test's daily hot-water draw. That figure belongs to the medium draw pattern, the standard daily hot-water usage DOE tests against. It sits 75 kWh below the 3,531 kWh median of the 426 electric tank models at that pattern.
Energy use per year
3,456 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 137 of 426, lowest energy first.
Solid line: this model (3,456 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
- 0.94 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
- 56 gal DOE CCD · 2026-09-19
- Rated Storage Volume the tank size in gallons
- 39 gal DOE CCD · 2026-09-19
What it costs to install
$1,647–$2,310 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 · 2026-09-24What 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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Is a 40-gallon water heater enough?
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 electric resistance tank water heaters
Electric tanks that file a UEF below 2.0 — heated by elements, not a heat pump.
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Every ARISTON model on file
What this brand files, by heater type.
UEF 0.94 · Grade G Price it on your ZIP
This site computed the 3,456 kWh figure. The registry does not list it. It combines the registry's UEF, the ratio of hot water delivered to energy used, with the DOE test's daily hot-water draw for the medium pattern. For this model the UEF is 0.94, from DOE CCD data retrieved 2026-09-19. The figure holds only at that test draw. A home that uses more or less hot water will have a different yearly total, and that total is not available here. The registry lists a rated volume of 39 gallons for this tank. Its first hour rating, the gallons of hot water available in the first hour from a full tank, is 56 gallons. See how this site calculates annual water heater energy and cost for the method.
Among the 426 electric tank models registered at the medium draw pattern, this model ranks 137th lowest in energy use. That puts it in the second-lowest quarter of its class. The gap to the class median is 75 kWh a year, measured at the same test draw. This ranking applies to a household whose daily hot-water use is close to the medium pattern, because that is the draw the ranking uses. It does not carry over to a household with heavier or lighter daily use, since its yearly totals would shift. Models of other heater types or draw patterns are outside this comparison. If you are checking a unit against others in the same class, use the same-class replacement search by model number.
This text gives no running cost, because the cost depends on your own utility's electricity tariff. The page calculates it from the 3,456 kWh figure and the rate for your ZIP. You can run the same check in the water heater cost calculator for your ZIP. The 75 kWh gap to the class median is also measured in energy, not cost, and its effect on a bill depends on the same tariff. The installed price range appears in its own block on this page, with its source and date. It is a modeled range, not a quote, and it is separate from the energy figures here. This model's actual energy use in a particular home is not in the registry, so it is unknown.
DOE CCD · 2026-09-19