DoesTheMath

AMERICAN FPTU-66 1**

3.42 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).

Verifying AMERICAN FPTU-66 1**? At the high draw pattern, the standard daily hot-water usage DOE tests against, this electric tank uses 1,451 kWh a year. That is 145 kWh above the class median of 1,306 kWh, among 194 electric tanks registered at the same draw pattern.


Energy use per year

1,451 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 152 of 194, lowest energy first.

This model: 1,451 kWh

Solid line: this model (1,451 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
3.42 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
79 gal DOE CCD · 2026-09-19
Rated Storage Volume the tank size in gallons
67 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

$3,699–$4,278 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

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 numbers23" ⌀
  • Electrical supplyEnter your numbers240V, 22A max
ENERGY STAR · 2026-09-19

What these figures mean

The registry lists AMERICAN FPTU-66 1** with a UEF, the ratio of hot water delivered to energy used, of 3.42. This site combined that value with the DOE test's daily hot-water draw for the high draw pattern to get 1,451 kWh of electricity a year. The registry does not publish that annual figure itself. The source is DOE CCD, retrieved 2026-09-19. Among the 194 electric tanks at this draw pattern, the model ranks 152nd lowest for energy use, which places it in the highest quarter of its class for energy use. See how the annual figure is calculated for the method.

The high draw pattern describes a larger household, or one where showers and laundry overlap. For that pattern, this model has a first hour rating, the gallons of hot water available in the first hour from a full tank, of 79 gallons and a rated volume of 67 gallons. Those two values relate to the demand of such a household. The data here does not say whether they meet any particular household's demand. A reader whose main concern is low energy use should note that 1,451 kWh is 145 kWh above the class median of 1,306 kWh. To compare other fuels, spaces and sizes, use the water heater selector by fuel, space and size.

The running cost is not stated in this text, because it depends on your own utility electricity tariff. The figure of 1,451 kWh applies only at the high draw pattern. A household that uses more or less hot water than the federal test's daily draw would use a different amount of energy. Enter your ZIP in the cost calculator for your own rate to see the running cost for this model. The modeled installed-cost range appears in its own block with its source and date, and it is not a quote. To look for a unit in the same class as FPTU-66 1**, you can find a same-class replacement by model number.

DOE CCD · 2026-09-19

How this compares

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


Keep going

UEF 3.42 · Grade C Price it on your ZIP