A. O. SMITH EETU-55W 1**
0.92 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 A. O. SMITH EETU-55W 1**, it uses 3,531 kWh of electricity a year at the medium draw pattern, the standard daily hot-water usage DOE tests against. That is 0 kWh from the class median of 3,531 kWh across 426 registered electric tank models.
Energy use per year
3,531 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 equal to the median of 3,531 kWh for the 426 models registered in the same heater type and draw pattern; it ranks 213 of 426, lowest energy first.
Solid line: this model (3,531 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
- 0.92 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
- 64 gal DOE CCD · 2026-09-19
- Rated Storage Volume the tank size in gallons
- 55 gal DOE CCD · 2026-09-19
What it costs to install
$1,866–$2,279 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 50-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 A. O. SMITH model on file
What this brand files, by heater type.
UEF 0.92 · Grade G Price it on your ZIP
The 3,531 kWh figure is not a measurement taken in your home. This site computed it from the registry's UEF, the ratio of hot water delivered to energy used, which is 0.92 for this model, and the daily hot-water draw in the DOE test for the medium draw pattern. That pattern stands for a typical multi-person household on a busy morning. The source is the DOE CCD, retrieved 2026-09-19. A home that draws more or less hot water than the test assumes will use a different amount of electricity, and this page holds no value for that case. The method behind the annual figures is documented separately.
The class median is 3,531 kWh, and this unit differs from it by 0 kWh. It ranks 213th lowest energy use of 426, which places it in the second-lowest quarter of its class. The figure therefore suits a like-for-like check against other electric tank models at the medium draw pattern. It does not support a comparison with models of another heater type or draw pattern. The registry also lists a first hour rating, the gallons of hot water available in the first hour from a full tank, of 64 gallons for a rated volume of 55 gallons. To look for a same-class unit, use find a replacement by model number, or try the selector by fuel, space and size.
The running cost of 3,531 kWh depends on the electricity rate you pay, and the registry does not contain a rate. No cost is written in this text for that reason. Multiply 3,531 kWh by your own utility tariff, or enter your ZIP in the cost calculator, which applies the rate for your area. The result is a modeled figure for the medium draw pattern, not a bill. The installed price range is shown in its own block with its source and date. It is a modeled installed-cost range, not a quote, and it is not repeated here. Standby losses beyond what UEF captures are not available in this data.
DOE CCD · 2026-09-19