DoesTheMath

AMERICAN FPTU-80 1**

3.45 UEF DOE CCD · 2026-09-19
C

Grade C: where this UEF sits among the 194 models in its class, lowest (G) to highest (A). A position, not an official label. How the grade is set

An electric tank, high draw pattern (a larger household, or one where showers and laundry overlap).

The AMERICAN FPTU-80 1** electric tank uses 1,438 kWh a year at the high draw pattern, the standard daily hot-water usage DOE tests against. That pattern describes a larger household, or one where showers and laundry overlap. The figure is 132 kWh above the class median of 1,306 kWh.


Energy use per year

1,438 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 above the median of 1,306 kWh for the 194 models registered in the same heater type and draw pattern; it ranks 135 of 194, lowest energy first.

This model: 1,438 kWh

Solid line: this model (1,438 kWh). Dashed line: the class median.

Min 1,002 kWh Median 1,306 kWh Max 5,334 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
3.45 DOE CCD · 2026-09-19 Compared only with other models registered as an electric tank at the high draw pattern.
Draw Pattern the standard daily usage profile DOE tests the unit against
High 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
84 gal DOE CCD · 2026-09-19
Rated Storage Volume the tank size in gallons
82 gal DOE CCD · 2026-09-19
On the market since (ENERGY STAR) the date the manufacturer told ENERGY STAR the model went on sale
2019-04-05 ENERGY STAR · 2026-09-19
Connected / demand response (ENERGY STAR) whether the unit can take signals from your utility to shift when it heats, and by which standard (such as CTA-2045)
No ENERGY STAR · 2026-09-19
Refrigerant and GWP (ENERGY STAR) the refrigerant a heat pump unit uses and its global warming potential, a leak's climate effect relative to carbon dioxide (CO2 = 1)
R-134a, GWP 1430 ENERGY STAR · 2026-09-19

What it costs to install

Not published: Installed cost range

This model's rated tank size lies outside the range NLR REMDB's cost model was fitted on, and the range is not stretched past it.

The annual energy figure on this page does not depend on this range and is unaffected.


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

Does it fit your space?

Enter your own numbers below — this compares them to what ENERGY STAR publishes for this model, it does not tell you what to buy.

Compressor operating range (ENERGY STAR)
the air temperatures around the unit in which its heat pump runs; outside this range the heat pump stops
Dimensions (ENERGY STAR)
the unit's filed height, width, depth or tank diameter, in inches
Input voltage and maximum current (ENERGY STAR)
the circuit voltage the unit is certified on and the most current it draws
  • Ambient temperatureEnter your numbers45°F min
  • Physical footprintEnter your numbers27" ⌀
  • Electrical supplyEnter your numbers240V, 22A max
ENERGY STAR · 2026-09-19

What these figures mean

The registry lists a UEF, the ratio of hot water delivered to energy used, of 3.45 for this model. This site combined that UEF with the DOE test's daily hot-water draw for the high draw pattern. The result is 1,438 kWh of electricity a year, from DOE CCD data retrieved 2026-09-19. The registry does not publish this annual figure itself. Among the 194 electric tanks registered at the high draw pattern, it ranks 135th lowest in energy use. That places it in the second-highest quarter of its class for energy use. Actual use in a home differs if the household draws more or less hot water than the test does.

The first hour rating, the gallons of hot water available in the first hour from a full tank, is 84 for this model. The rated volume is 82 gallons. The model is registered at the high draw pattern. A household with a different daily draw would see a different figure than 1,438 kWh. The registry gives no annual figure for other draw levels. Because this model sits 132 kWh above the class median, a household looking for use at or below 1,306 kWh would need to look at other models. The water heater selector filters by fuel, space and size. The replacement finder finds same-class replacements by model number.

Running cost depends on your own electricity rate, so no cost is stated in this text. The cost calculator applies the rate for your ZIP to 1,438 kWh a year. How the annual cost is calculated is explained on the methodology page. This site computes the annual figure, not the registry, from the UEF of 3.45 and the test's daily draw. An installed price range is not published for this model. Its ratings lie outside the range the cost database's model was fitted on. The range is not extended past it. The figure applies to the high draw pattern, so actual bills also depend on how much hot water the home uses.

DOE CCD · 2026-09-19

How this compares

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


Keep going

UEF 3.45 · Grade C Price it on your ZIP