DoesTheMath

LAARS LCTEH005********

0.96 UEF DOE CCD · 2026-09-19
E

Grade E: 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).

For LAARS LCTEH005********, an electric tankless unit, the estimate is 615 kWh of electricity a year at the very small draw pattern, the standard daily hot-water usage DOE tests against. That equals the class median of 615 kWh, a difference of 0 kWh, and ranks 77th lowest of 271 models.


Energy use per year

615 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 equal to the median of 615 kWh for the 271 models registered in the same heater type and draw pattern; it ranks 77 of 271, lowest energy first.

This model: 615 kWh

Solid line: this model (615 kWh). Dashed line: the class median.

Min 562 kWh Median 615 kWh Max 649 kWh

DOE CCD · 2026-09-19

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What it costs to run where you live

Enter your ZIP to see what this unit costs to run a year on your own utility’s electricity rate.


What the registry files

UEF (Uniform Energy Factor) how much hot water you get for each unit of energy the heater uses
0.96 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
0.5 gal/min DOE CCD · 2026-09-19

What it costs to install

$1,306–$1,838 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) · 2026-04-01

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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 · 2026-09-24

What these figures mean

The figure of 615 kWh was computed by this site, not taken from the registry. The registry lists a UEF, the ratio of hot water delivered to energy used, of 0.96. The site combines it 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 electric tankless models registered at this draw pattern, the class median is 615 kWh, so the difference is 0 kWh. The rank of 77th lowest puts the unit in the second-lowest quarter of its class. The methodology page explains how the annual figures are calculated.

This model is registered for the very small draw pattern, which covers small units: a single bathroom, or a point-of-use heater under a sink. Its maximum flow rate in gallons per minute is 0.5. The energy figure applies only to that draw pattern. This page has no figure for any other draw pattern, so none is available. A household that needs hot water at several fixtures at once falls outside what this figure describes. To compare units by fuel, space and size, use the water heater selector. To look for a same-class replacement, enter a model number in the replacement finder.

The running cost is not stated in the text, because it depends on your own utility electricity tariff. Multiplying 615 kWh by your rate gives the yearly cost at the federal test's draw, and the cost calculator does this from your ZIP. Actual use in a home can differ from the test's daily draw, and this page does not estimate by how much. The installed price range appears in its own block with its source and date, as a modeled range and not a quote. Because this unit's energy use equals the class median of 615 kWh, its yearly cost at a given rate matches that of a model using the median energy.

DOE CCD · 2026-09-19

How this compares

The closest models in the same class — same fuel, type and draw pattern.


Keep going

UEF 0.96 · Grade E Price it on your ZIP