LOCHINVAR ENJB-30 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 ENJB-30 1**, an electric tank, it uses 2,494 kWh of electricity a year at the federal test's daily hot-water draw for the low draw pattern. That is 55 kWh above the class median of 2,439 kWh across 163 registered models.
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
- 47 gal DOE CCD · 2026-09-19
- Rated Storage Volume the tank size in gallons
- 26 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 figure of 2,494 kWh is a calculated value, not a measurement taken in your home. This site computed it from the registry's UEF, the ratio of hot water delivered to energy used, which is 0.9 for the LOCHINVAR ENJB-30 1**, and from the daily hot-water draw the DOE test assigns to the low draw pattern. A draw pattern is the standard daily hot-water usage DOE tests against. The figure therefore holds only for that test draw, with electricity as the fuel. The DOE CCD data was retrieved on 2026-09-19. Energy use at any other draw pattern is not available on this page.
Among the 163 models registered as an electric tank at the low draw pattern, this one ranks 122nd lowest energy use of 163. That places it in the second-highest quarter of its class for energy use. Its 2,494 kWh sits 55 kWh above the class median of 2,439 kWh. The rated volume is 26 gallons, and the first hour rating, the gallons of hot water available in the first hour from a full tank, is 47 gallons. The low draw pattern describes a small household, so a household that draws more hot water is not covered by this figure. An installed price range is not published, because this model's ratings lie outside the range the cost database's model was fitted on.
The running cost is not stated in the text, because it depends on your own utility electricity tariff. The cost calculator applies your ZIP's rate to the 2,494 kWh figure, and the annual cost methodology explains how that calculation is done. A model at the class median of 2,439 kWh would use 55 kWh less per year than this one at the same draw pattern. You can look for a same-class option with the replacement finder by model number. If size or fuel is still open, the water heater selector filters by fuel, space and size.
DOE CCD · 2026-09-19