AMERICAN STANDARD WATER HEATERS ENS30LUB 240V-3500W
0.92 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 this electric tank model, AMERICAN STANDARD WATER HEATERS ENS30LUB 240V-3500W uses 2,439 kWh of electricity a year at the low draw pattern, the standard daily hot-water usage DOE tests against, for a one- or two-person household. That is 0 kWh from the class median of 2,439 kWh.
Energy use per year
2,439 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 2,439 kWh for the 163 models registered in the same heater type and draw pattern; it ranks 19 of 163, lowest energy first.
Solid line: this model (2,439 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
- 0.92 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
- 35 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
$1,461–$1,577 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 AMERICAN STANDARD WATER HEATERS model on file
What this brand files, by heater type.
UEF 0.92 · Grade G Price it on your ZIP
The figure of 2,439 kWh is a computed value, not one the registry reports. This site calculated it from the registry's UEF, the ratio of hot water delivered to energy used, and the DOE test's daily hot-water draw for the low draw pattern. The registry lists a UEF of 0.92 for this unit. The source data comes from DOE CCD, retrieved 2026-09-19. The figure holds only at that test draw. Households draw more or less hot water than the test assumes, so measured use in a home can differ, and this page has no measured value. The methodology page shows how the calculation is done.
Against its class, this model is compared with the 163 models registered as an electric tank at the low draw pattern. The class median is 2,439 kWh, and this model differs from it by 0 kWh. It has the 19th lowest energy use of 163, which places it in the lowest quarter of its class for energy use. The data given here does not explain how a figure equal to the median sits at that rank, so check both values against the DOE CCD entry if they matter to your comparison. The first hour rating, the gallons of hot water available in the first hour from a full tank, is 35 gallons. The rated volume is 27 gallons.
This unit fits the low draw pattern, a one- or two-person household, because 2,439 kWh applies to that draw only. It does not describe a household with heavier hot-water use, and the energy use of this model at other draw patterns is not available here. Running cost is not stated in this text, since it depends on your own utility electricity rate applied to 2,439 kWh. The cost calculator computes it from your ZIP. To look up a same-class unit by model number, use find a replacement. The water heater selector filters by fuel, space and size. The modeled installed-cost range appears in its own block on this page.
DOE CCD · 2026-09-19