LOCHINVAR ENLB-40W 1**
0.9 UEF DOE CCD · 2026-09-19Grade G: where this UEF sits among the 163 models in its class, lowest (G) to highest (A). A position, not an official label. How the grade is set
An electric tank, low draw pattern (a one- or two-person household).
If you are checking the LOCHINVAR ENLB-40W 1**, this site puts its use at 2,494 kWh of electricity per year. That figure belongs to the low draw pattern, the standard daily hot-water usage DOE tests against. It sits 55 kWh above the class median of 2,439 kWh for electric tank models at that pattern.
Energy use per year
2,494 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 above the median of 2,439 kWh for the 163 models registered in the same heater type and draw pattern; it ranks 122 of 163, lowest energy first.
Solid line: this model (2,494 kWh). Dashed line: the class median.
Min 724 kWh Median 2,439 kWh Max 2,550 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
- 0.9 DOE CCD · 2026-09-19 Compared only with other models registered as an electric tank at the low draw pattern.
- Draw Pattern the standard daily usage profile DOE tests the unit against
- Low 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
- 38 gal DOE CCD · 2026-09-19
- Rated Storage Volume the tank size in gallons
- 35 gal DOE CCD · 2026-09-19
What it costs to install
Not published: Installed cost range
This model's UEF lies outside the range NLR REMDB's cost model was fitted on, and the range is not stretched past it.
The annual energy figure on this page does not depend on this range and is unaffected.
Safety 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 LOCHINVAR model on file
What this brand files, by heater type.
UEF 0.9 · Grade G Price it on your ZIP
The 2,494 kWh figure does not come from the registry itself. This site computed it from the registry's UEF, the ratio of hot water delivered to energy used, which is 0.9 for this model. The other input is the DOE test's daily hot-water draw for the low draw pattern. The registry record comes from DOE CCD, retrieved 2026-09-19. The result is electricity use at that test draw, not at any particular home's draw. This figure does not describe a home that draws more or less hot water than the test assumes. A figure for such a home is not available here. The page on how the annual cost is calculated sets out the inputs and steps.
This model ranks 122nd lowest in energy use among the 163 models registered as an electric tank at the low draw pattern. Its 2,494 kWh per year sits 55 kWh above that class median of 2,439 kWh. Its first hour rating, the gallons of hot water available in the first hour from a full tank, is 38 gallons. Its rated volume is 35 gallons. These ratings describe a household with low daily hot-water use, which is what the low draw pattern stands for. For a household whose use fits a higher draw pattern, the 2,494 kWh figure does not apply. No figure for a higher pattern is available on this page. To compare the same ratings across electric tanks, use the same-class replacement search by model number.
The running cost is not stated on this page. It depends on your own utility's electricity tariff, so the page computes it from your ZIP. That calculation starts from the same 2,494 kWh per year at the low draw pattern. For the figure at your own rate, use the water heater cost calculator for your ZIP. An installed price range is not published for this model. Its ratings lie outside the range the cost database's model was fitted on. That range is not stretched to cover them, so no price range is shown here. If you need models that use another fuel or fit another space or size, the water heater selector by fuel, space and size lists them.
DOE CCD · 2026-09-19