DoesTheMath

AMERICAN ENJ-40 1**

0.93 UEF DOE CCD · 2026-09-19
G

Grade 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).

The AMERICAN ENJ-40 1** 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, ranking 153rd lowest of 426 models. Running cost depends on your own rate.


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.

This model: 3,493 kWh

Solid line: this model (3,493 kWh). Dashed line: the class median.

Min 773 kWh Median 3,531 kWh Max 3,569 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
0.93 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
35 gal DOE CCD · 2026-09-19

What it costs to install

$1,583–$1,994 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 3,493 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 DOE test's daily hot-water draw for the medium draw pattern. The source is the DOE CCD, retrieved 2026-09-19. The fuel is electricity, so the figure is in kilowatt-hours. A home with a different daily hot-water use will not match 3,493 kWh. The method used to calculate annual cost is documented on its own page.

Its first hour rating, the gallons of hot water available in the first hour from a full tank, is 54 gallons. The rated volume is 35 gallons. Against its class, its energy use is 38 kWh below the median of 3,531 kWh. That places it in the second-lowest quarter of 426 electric tank models at the medium draw pattern. The figure suits a household whose daily hot-water use is close to that draw pattern and whose busiest hour stays within the first hour rating. It does not describe a household with a different daily draw. This data does not show how the model performs at other draw patterns. To compare options by fuel, space and size, use the water heater selector.

The running cost is not stated in the text, because it depends on your own utility electricity tariff. Multiplying 3,493 kWh by your rate per kilowatt-hour gives a yearly cost at the medium draw pattern. The cost calculator does this from your ZIP code. The installed price range appears in its own block with its source and date, as a modeled range and not a quote, so it is not repeated here. For a like-for-like swap, you can find a same-class replacement by model number using ENJ-40 1**. Measured use in a specific home is not available in this data and may differ from 3,493 kWh.

DOE CCD · 2026-09-19

How this compares

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


Keep going

UEF 0.93 · Grade G Price it on your ZIP