RELIANCE WATER HEATERS ENL-36 2**
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 the RELIANCE WATER HEATERS ENL-36 2**, this electric tank uses 3,531 kWh of electricity a year. That figure applies at the medium draw pattern, the standard daily hot-water usage DOE tests against. It equals its class median of 3,531 kWh, a difference of 0 kWh. It ranks 213th lowest energy use of 426 medium-draw electric tanks.
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
- 51 gal DOE CCD · 2026-09-19
- Rated Storage Volume the tank size in gallons
- 33 gal DOE CCD · 2026-09-19
What it costs to install
$1,548–$1,727 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 30-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 registry does not print the 3,531 kWh figure. This site calculated it from two inputs. The first is the registry's UEF, the ratio of hot water delivered to energy used, which is 0.92 for this model. The second is the DOE test's daily hot-water draw for the medium pattern. The UEF comes from the DOE Compliance Certification Database (CCD), retrieved 2026-09-19. The medium pattern stands for a typical household's use, including a busy morning. The annual figure therefore holds only at that test draw. A home that uses more or less hot water each day will use a different amount of electricity. The registry gives no figure for this model under other draw patterns, so that value is not available here. To check a label or spec sheet against this page, compare the UEF of 0.92 first, because the annual figure is calculated from it.
The summary above gives the model's gap from its class median. The class is the 426 models registered as an electric tank at the medium draw pattern. Within it, this model falls in the second-lowest quarter for energy use. Its first hour rating, the gallons of hot water available in the first hour from a full tank, is 51 gallons. Its rated volume is 33 gallons. The rating fits a household whose busiest hour stays within 51 gallons of hot water. A household that needs more than 51 gallons in that hour is outside what the rating covers. To check other tanks, use the water heater selector by fuel, space and size. You can also find a same-class replacement by model number.
This text does not state a running cost, because the cost depends on your own utility's electricity tariff. The cost of 3,531 kWh a year depends on the rate you pay per kWh, and that rate differs between utilities. The cost calculator for your own ZIP applies your local tariff to this model's annual figure. The steps behind that result are set out in how the annual cost is calculated. The installed price range appears in its own block on this page, with its source and date. It is a modeled installed-cost range, not a quote from an installer. Neither the running cost nor the installed price comes from the registry. Only the UEF of 0.92 and the draw pattern come from the registry.
DOE CCD · 2026-09-19