RELIANCE WATER HEATERS 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 verifying this unit's rating, the RELIANCE WATER HEATERS EELBU-50 1** uses 3,531 kWh of electricity a year. That figure belongs to the medium draw pattern, the standard daily hot-water usage DOE tests against. It equals the class median of 3,531 kWh, a difference of 0 kWh, across 426 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
- 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 RELIANCE WATER HEATERS 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 comes from this site's calculation, not from the registry. 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 0.92, from DOE CCD data retrieved 2026-09-19. The figure holds only at that test draw. A household that uses more hot water than the test day will use more electricity. A household that uses less will use less. This data does not show how far your own use differs from the test. The steps are set out in how the annual energy and cost figures are calculated.
Within its class, this model ranks 213th lowest in energy use of 426, which places it in the second-lowest quarter. Because it sits at the class median, as stated above, its energy use neither beats nor trails the middle of its class. Its first hour rating, the gallons of hot water available in the first hour from a full tank, is 55 gallons. Its rated volume is 44 gallons. A household whose busiest hour stays within 55 gallons fits the medium pattern the unit was tested at. A household that regularly needs more than that in its peak hour may run short of hot water. To compare other sizes or fuels, use the water heater selector by fuel, space and size.
This text states no running cost, because that cost depends on your own utility's electricity tariff. Your rate applies to the 3,531 kWh per year at the medium draw pattern. The running cost calculator for your ZIP applies your local tariff to that figure. This data does not cover conditions at your address, so the result reflects the test draw only. The installed price appears in its own block, with its source and date. It is a modeled installed-cost range, not a quote from an installer. If you are matching a unit already in place, you can find a same-class replacement by model number starting from EELBU-50 1**.
DOE CCD · 2026-09-19