LOCHINVAR ENS-30 1**
0.89 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).
For a registry check, LOCHINVAR ENS-30 1** uses 2,522 kWh of electricity a year. That figure belongs to the low draw pattern, the standard daily hot-water usage DOE tests against, here a one- or two-person household. It is 83 kWh above the class median of 2,439 kWh, and it ranks 143rd lowest in energy use of 163 models.
Energy use per year
2,522 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 143 of 163, lowest energy first.
Solid line: this model (2,522 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
- 0.89 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
- 27 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
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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 0.89 · Grade G Price it on your ZIP
The registry lists a UEF, the ratio of hot water delivered to energy used, of 0.89 for this model. This site did not take the annual energy from the registry. It computed 2,522 kWh from that UEF and the DOE test's daily hot-water draw for the low draw pattern. The DOE CCD record was retrieved 2026-09-19. The class median is 2,439 kWh for the 163 models registered as an electric tank at this draw pattern. This unit sits 83 kWh above that median. It ranks 143rd lowest in energy use, which places it in the highest quarter of its class for energy use.
The first hour rating, the gallons of hot water available in the first hour from a full tank, is 47 gallons. The rated volume is 27 gallons. The 2,522 kWh figure applies to the low draw pattern only. A household with heavier daily use belongs to a different draw pattern, and this page gives no annual energy for it. A reader who compares only by energy use will see this model 83 kWh above the class median of 2,439 kWh. A reader who compares by capacity or space can start from the water heater selector, which filters by fuel, space and size.
The running cost is not stated in the text. It depends on your own utility electricity tariff, and 2,522 kWh is the quantity that tariff multiplies. The cost calculator applies your ZIP to that figure. The methodology page explains how the annual cost is calculated. An installed price range is not published for this model. Its ratings lie outside the range the cost database was fitted on, and the range is not stretched past that limit. To look for a same-class unit, the replacement lookup by model number accepts ENS-30 1** as a starting point.
DOE CCD · 2026-09-19