RELIANCE WATER HEATERS MHE6-40R-045D 1**
0.95 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 RELIANCE WATER HEATERS MHE6-40R-045D 1** against the registry, it uses 3,419 kWh of electricity a year. That figure applies to the medium draw pattern, the standard daily hot-water usage DOE tests against. It sits 112 kWh below the 3,531 kWh median of the 426 electric tank models registered at the medium draw pattern.
Energy use per year
3,419 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 below the median of 3,531 kWh for the 426 models registered in the same heater type and draw pattern; it ranks 133 of 426, lowest energy first.
Solid line: this model (3,419 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
- 0.95 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
- 54 gal DOE CCD · 2026-09-19
- Rated Storage Volume the tank size in gallons
- 36 gal DOE CCD · 2026-09-19
What it costs to install
$1,610–$2,452 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 0.95 · Grade G Price it on your ZIP
This site computes the 3,419 kWh figure; the registry does not list it directly. The calculation starts from the registry's UEF, the ratio of hot water delivered to energy used, which is 0.95 for this model. It applies that ratio to the DOE test's daily hot-water draw for the medium draw pattern. The source is the DOE CCD, retrieved on 2026-09-19. Among the 426 electric tank models registered at the same draw pattern, this unit ranks 133rd lowest for energy use. The figure describes the test's daily draw only. A household that uses more or less hot water than the test assumes will use a different amount of electricity. The registry gives no figure for that case.
The medium draw pattern represents a typical household with its heaviest hot-water use on a busy morning. This model's first hour rating, the gallons of hot water available in the first hour from a full tank, is 54 gallons. Its rated volume is 36 gallons. A home whose busiest hour needs more than 54 gallons is outside what this rating covers. The class comparison above covers only models at the medium draw pattern, so it does not describe such homes. To compare other units, use the water heater selector by fuel, space and size. To match this unit with another model in its class, find a same-class replacement by model number.
Running cost is not given in this text because it depends on your own utility's electricity rate. The page computes it from the 3,419 kWh yearly use and the tariff for your ZIP, so the result applies to your address only. Use the cost calculator for your own ZIP to see that figure. The steps behind it 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.
DOE CCD · 2026-09-19