STATE ENJ-40W 1**
0.91 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 verifying this unit, the STATE ENJ-40W 1** uses 2,466 kWh a year at the low draw pattern, the standard daily hot-water usage DOE tests against. That is 27 kWh above the class median of 2,439 kWh. It ranks 88th lowest in energy use of 163 electric tank models.
Energy use per year
2,466 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 88 of 163, lowest energy first.
Solid line: this model (2,466 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
- 0.91 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 STATE model on file
What this brand files, by heater type.
UEF 0.91 · Grade G Price it on your ZIP
UEF, the ratio of hot water delivered to energy used, is 0.91 for this model. The site computed 2,466 kWh itself, not the registry. It combined the UEF with the daily hot-water draw that the DOE test uses for the low draw pattern. The source data is from the DOE CCD, retrieved 2026-09-19. The figure holds only at that test draw, so a household using more or less hot water will see a different annual use. This figure is not a measurement of any home. The methodology page explains how the annual figure is calculated.
Its annual energy is 27 kWh above the class median of 2,439 kWh. The class is the 163 models registered as an electric tank at the low draw pattern. The rank is counted from the lowest energy use upward. It ranks 88th lowest in energy use of 163, which is the second-highest quarter of the class. The data gives the median and the rank but not the spread between models. A comparison with a specific model needs that model's own figure. The replacement finder lists same-class models by model number, so you can compare each one's annual energy with 2,466 kWh.
The low draw pattern describes a one- or two-person household. The 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. A household with heavier hot-water use is outside the 2,466 kWh figure, and the water heater selector filters by fuel, space and size. Running cost depends on your own electricity tariff, so no cost amount is written here. The cost calculator applies the tariff for your ZIP to 2,466 kWh. An installed price range is not published, because this model's ratings lie outside the range the cost database was fitted on.
DOE CCD · 2026-09-19