AMERICAN STANDARD WATER HEATERS ENS50L-6*
0.92 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 the AMERICAN STANDARD WATER HEATERS ENS50L-6*, this electric tank uses 3,531 kWh of electricity a year. That figure applies at the medium draw pattern, the standard daily hot-water usage DOE tests against. It equals the class median of 3,531 kWh, a difference of 0 kWh, and ranks 213th lowest in energy use of 426.
Energy use per year
3,531 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 3,531 kWh for the 426 models registered in the same heater type and draw pattern; it ranks 213 of 426, lowest energy first.
Solid line: this model (3,531 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
- 0.92 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
- 52 gal DOE CCD · 2026-09-19
- Rated Storage Volume the tank size in gallons
- 42 gal DOE CCD · 2026-09-19
What it costs to install
$1,678–$1,953 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 0.92 · Grade G Price it on your ZIP
The 3,531 kWh figure is not taken from the registry. This site computes it. It uses the registry's UEF, the ratio of hot water delivered to energy used, which is 0.92 for this model. It also uses the DOE test's daily hot-water draw for the medium draw pattern. The comparison class is the 426 models registered as an electric tank at the medium draw pattern. Within that class, this model sits exactly at the median of 3,531 kWh, with a difference of 0 kWh. Its rank of 213th lowest out of 426 matches that median position. The underlying data comes from DOE CCD, retrieved 2026-09-19. The method behind the annual figure sets out each input and step.
The model's first hour rating, the gallons of hot water available in the first hour from a full tank, is 52 gallons. Its rated volume is 42 gallons. The medium draw pattern stands for the daily use of a typical family household. The 3,531 kWh figure therefore describes a home whose daily hot-water use is close to that test draw. A home that draws more hot water each day will use more electricity than 3,531 kWh. A home that draws less will use less. The registry data does not show how much more or less, so that amount is not available here. To see other models listed by fuel, space and size, open the water heater selector by fuel, space and size.
The text on this page gives no running cost for 3,531 kWh a year. That cost depends on your own utility's electricity tariff. The page computes it from your ZIP in the running-cost calculator for your ZIP. With a difference of 0 kWh from the class median, the model's yearly electricity use matches a median model in its class. On the same tariff, both would therefore cost the same to run. The installed-price range appears in its own block on this page. It is a modeled range, not a quote, and its figures are not repeated here. To check a same-class model by model number, use the same-class replacement lookup by model number.
DOE CCD · 2026-09-19