LAARS LCTEV010********
0.91 UEF DOE CCD · 2026-09-19Grade G: where this UEF sits among the 271 models in its class, lowest (G) to highest (A). A position, not an official label. How the grade is set
An electric tankless unit, very small draw pattern (small units - a single bathroom, or a point-of-use heater under a sink).
If you are checking the LAARS LCTEV010********, an electric tankless unit, it uses 649 kWh of electricity a year at the very small draw pattern, the standard daily hot-water usage DOE tests against. That is 34 kWh above the class median of 615 kWh.
Energy use per year
649 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 615 kWh for the 271 models registered in the same heater type and draw pattern; it ranks 265 of 271, lowest energy first.
Solid line: this model (649 kWh). Dashed line: the class median.
Min 562 kWh Median 615 kWh Max 649 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 tankless unit at the very small draw pattern.
- Draw Pattern the standard daily usage profile DOE tests the unit against
- Very small DOE CCD · 2026-09-19
- Maximum Gallons Per Minute how many gallons a minute it can heat while running continuously
- 1 gal/min DOE CCD · 2026-09-19
What it costs to install
$1,292–$1,718 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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How to size a tankless water heater by GPM
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 tankless water heaters
Electric instantaneous units, sized by flow rate rather than tank gallons.
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Every LAARS model on file
What this brand files, by heater type.
UEF 0.91 · Grade G Price it on your ZIP
The figure of 649 kWh is computed by this site, not by the registry. It combines the registry's UEF, the ratio of hot water delivered to energy used, of 0.91 with the DOE test's daily hot-water draw for the very small draw pattern. The source is the DOE CCD, retrieved 2026-09-19. Among the 271 models registered as an electric tankless unit at this draw pattern, this one ranks 265th lowest in energy use out of 271, which is the highest quarter of its class for energy use. Its figure is 34 kWh above the class median of 615 kWh. The steps behind the calculation are set out in how the annual cost is calculated.
The unit is registered for the very small draw pattern, meaning small units: a single bathroom, or a point-of-use heater under a sink. Its maximum flow rate in gallons per minute is 1. For that kind of use, the 649 kWh figure is the value to set against the class median of 615 kWh. It does not describe a household with a larger daily hot-water draw, because the figure is tied to the federal test's very small draw pattern. This page has no annual energy value for this model at another draw pattern, so none is given. To compare by fuel, space and size, use the water heater selector.
The running cost is not written as an amount here because it depends on your own utility electricity tariff. Multiply the 649 kWh by your rate per kilowatt-hour, or enter your ZIP in the cost calculator for your own ZIP to get the figure for your area. The result holds only at the very small draw pattern. Actual use in your home may differ from the federal test's daily draw, and this page cannot say by how much. The modeled installed-cost range appears in its own block, with its source and date, and is not a quote. For a unit in the same class, find a same-class replacement by model number, starting from LCTEV010********.
DOE CCD · 2026-09-19