Lennox WHES030L45TN240S****
0.93 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 second opinion on this unit: the Lennox WHES030L45TN240S**** uses 2,413 kWh of electricity a year at the low draw pattern, the standard daily hot-water usage DOE tests against. That is 26 kWh below the class median of 2,439 kWh among 163 electric tank models.
Energy use per year
2,413 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 below the median of 2,439 kWh for the 163 models registered in the same heater type and draw pattern; it ranks 9 of 163, lowest energy first.
Solid line: this model (2,413 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
- 0.93 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
- 40 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
$1,467–$1,793 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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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 Lennox model on file
What this brand files, by heater type.
UEF 0.93 · Grade G Price it on your ZIP
The figure of 2,413 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 0.93 with the daily hot-water draw that the DOE test assigns to the low draw pattern. The fuel is electricity, and the source is DOE CCD, retrieved 2026-09-19. The figure holds only at that test draw. It is a calculation from test values, not a measurement of any installed unit. The calculation steps are set out in how the annual cost is calculated.
This model is compared with the 163 models registered as an electric tank at the low draw pattern. It ranks 9th lowest for energy use, which puts it in the lowest quarter of its class. Its 2,413 kWh sits 26 kWh below the class median of 2,439 kWh. This page does not show how the remaining models are spread around the median. The rated volume is 27 gallons, and the first hour rating, the gallons of hot water available in the first hour from a full tank, is 40 gallons. The low draw pattern represents a one- or two-person household, so the figure does not cover a household with a different pattern. The water heater selector by fuel, space and size covers other cases.
The running cost is not written here because it depends on your own utility electricity tariff. The energy figure of 2,413 kWh is fixed at the test draw, but the price per kWh is not, so the same unit costs different amounts in different places. The cost calculator for your own ZIP applies your local rate to that figure. Actual energy use in your home depends on how much hot water your household draws, and this page has no data on that. If you are checking a unit you plan to swap out, find a same-class replacement by model number to compare against WHES030L45TN240S****.
DOE CCD · 2026-09-19