AMERICAN STANDARD WATER HEATERS ENS40T-DR***
0.93 UEF DOE CCD · 2026-09-19Grade G: where this UEF sits among the 426 models in its class, lowest (G) to highest (A). A position, not an official label. How the grade is set
An electric tank, medium draw pattern (a typical three- or four-person household, about 55 gallons on a busy morning).
If you are checking this model's listing: AMERICAN STANDARD WATER HEATERS ENS40T-DR***, an electric tank, uses 3,493 kWh a year at the medium draw pattern, the standard daily hot-water usage DOE tests against. That is 38 kWh below the class median of 3,531 kWh among 426 registered models, ranking 153rd lowest.
Energy use per year
3,493 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 3,531 kWh for the 426 models registered in the same heater type and draw pattern; it ranks 153 of 426, lowest energy first.
Solid line: this model (3,493 kWh). Dashed line: the class median.
Min 773 kWh Median 3,531 kWh Max 3,569 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 medium draw pattern.
- Draw Pattern the standard daily usage profile DOE tests the unit against
- Medium 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
- 54 gal DOE CCD · 2026-09-19
- Rated Storage Volume the tank size in gallons
- 36 gal DOE CCD · 2026-09-19
What it costs to install
$1,597–$2,019 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 40-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 0.93 · Grade G Price it on your ZIP
The figure of 3,493 kWh is not a registry entry. This site computed it from two inputs. The first is the registry's UEF, the ratio of hot water delivered to energy used, listed as 0.93. The second is the daily hot-water draw that the DOE test assigns to the medium draw pattern. The source is the DOE CCD, retrieved 2026-09-19. The figure holds only at that test draw, and a household that draws more or less hot water will use a different amount. The registry also lists a first hour rating, the gallons of hot water available in the first hour from a full tank, of 54 gallons, and a rated volume of 36 gallons. Neither enters the annual figure computed here.
Against the 426 models registered as an electric tank at the medium draw pattern, this unit uses 38 kWh less per year than the class median of 3,531 kWh. It ranks 153rd lowest in energy use, which is in the second-lowest quarter of its class. The data here gives the median and the rank only; it does not show how widely the class is spread. The comparison suits a reader whose household matches the medium draw pattern and who wants to check this model against its own class. It is less informative for other hot-water demands, because this page gives a value only for the medium draw pattern. To look at another model in the same class, use the same-class replacement finder, or narrow by fuel, space and size with the water heater selector.
Running cost is not stated in this text, because it depends on your own utility electricity tariff. To check it, multiply 3,493 kWh by your rate per kilowatt-hour. The result is the annual cost at the federal test's daily draw for the medium draw pattern, not at your actual use. The same rate applied to the 38 kWh gap from the class median of 3,531 kWh shows what that gap is worth to you. The cost calculator on your own ZIP does this calculation, and the method used to calculate annual cost is documented separately. The modeled installed-cost range for this model appears in its own block with its source and date. It is a modeled range, not a quote, and it is not repeated here.
DOE CCD · 2026-09-19