LOCHINVAR EELBU-50 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 EELBU-50 1**, it uses 3,531 kWh of electricity a year at the medium draw pattern. A draw pattern is the standard daily hot-water usage DOE tests against. That figure equals the class median of 3,531 kWh for electric tank models at this pattern, ranking 213th lowest energy use of 426.
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
- 55 gal DOE CCD · 2026-09-19
- Rated Storage Volume the tank size in gallons
- 44 gal DOE CCD · 2026-09-19
What it costs to install
$1,707–$2,003 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 LOCHINVAR model on file
What this brand files, by heater type.
UEF 0.92 · Grade G Price it on your ZIP
This site computed the 3,531 kWh figure; it is not taken from the registry. It combines the registry's UEF, the ratio of hot water delivered to energy used, with the daily hot-water draw from the DOE test for the medium draw pattern. For this model the UEF is 0.92, from DOE CCD data retrieved 2026-09-19. The figure holds only at that test draw. A household that uses more or less hot water than the test assumes will use a different amount of electricity. The result matches the class median of 3,531 kWh, a difference of 0 kWh across the 426 electric tank models compared. In the federal test, this unit uses as much energy as the median unit in its class, and neither more nor less. The page on how the annual cost is calculated explains each step of this calculation.
The tank has a rated volume of 44 gallons. Its first hour rating, the gallons of hot water available in the first hour from a full tank, is 55 gallons. Both values come from the federal test at the medium draw pattern. A household whose daily use matches that pattern should expect energy use near 3,531 kWh. A household with heavier morning demand may need more hot water than the 55 gallons this tank supplies in its first hour. Its annual energy would also differ from the test figure. For a household that uses less hot water, the 3,531 kWh figure will overstate use. Models tested at other draw patterns are not part of this comparison. The selector by fuel, space and size lists units at other sizes and fuels.
The text states no running cost for this model. The cost of 3,531 kWh a year depends on your own utility's electricity tariff. That is why the page calculates it from your ZIP and does not estimate it. You can run the same energy figure through the cost calculator on your own ZIP. The installed price appears in its own block with its source and date. It is a modeled range, not a quote. When you verify a replacement, use the rank of 213th lowest energy use of 426 as the reference point. An electric tank unit at the medium draw pattern with lower annual energy would rank ahead of it. To see units in the same class, find a same-class replacement by model number.
DOE CCD · 2026-09-19