LOCHINVAR 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 LOCHINVAR EETU-55W 1**, this electric tank uses 3,531 kWh of electricity a year at the medium draw pattern, the standard daily hot-water usage DOE tests against. That equals the class median of 3,531 kWh, a difference of 0 kWh. It ranks 213th lowest in energy use of 426 comparable 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 LOCHINVAR 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 computed by this site. The registry does not publish 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. This model's UEF is 0.92, taken from the DOE CCD and retrieved 2026-09-19. The result holds only at the medium draw pattern's test draw. A home that uses more or less hot water than that draw will use a different amount of electricity. The comparison class is the 426 models registered as an electric tank at the same draw pattern. That is why the 213th rank is a like-for-like position. The steps behind the annual figure are set out in how the annual energy and cost are calculated.
The medium draw pattern represents a typical household's daily use, including a busy morning of hot water. This unit's first hour rating, the gallons of hot water available in the first hour from a full tank, is 64 gallons. Its rated volume is 55 gallons. A household whose busiest hour stays within 64 gallons is close to the conditions behind the 3,531 kWh figure. A household that draws more in its peak hour is outside the test conditions. The registry does not state how this unit performs in that case, so that result is unknown here. A household with lighter use is also outside the test draw, and its yearly electricity use is not available from this data. To compare other units, use the water heater selector by fuel, space and size, or find a same-class replacement by model number.
The running cost is not written here because it depends on your own utility's electricity tariff. The page calculates it from your ZIP, starting from the 3,531 kWh yearly figure. Homes running the same LOCHINVAR EETU-55W 1** at the same medium draw pattern can therefore see different running costs. You can check the figure for your address in the cost calculator for your own ZIP. The installed price range has its own block on this page, with its source and date. It is a modeled installed-cost range, not a quote. Neither the rate nor the price range changes the energy result. At the test draw, this unit's use stays at 3,531 kWh a year, whatever the local tariff or installation price.
DOE CCD · 2026-09-19