A. O. SMITH FPTU-80 1**
3.45 UEF DOE CCD · 2026-09-19Grade 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).
If you are verifying the A. O. SMITH FPTU-80 1**: this electric tank uses 1,438 kWh a year at the high draw pattern, the standard daily hot-water usage DOE tests against. That is 132 kWh above the class median of 1,306 kWh among 194 comparable models.
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.
Solid line: this model (1,438 kWh). Dashed line: the class median.
Min 1,002 kWh Median 1,306 kWh Max 5,334 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
- 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 · 2026-09-24Does 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
What 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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What size heat pump water heater do I need?
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 heat pump water heaters
Electric tanks that file a UEF of 2.0 or more — the registry has no separate heat pump type, so this site draws the line there.
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Every A. O. SMITH model on file
What this brand files, by heater type.
UEF 3.45 · Grade C Price it on your ZIP
The registry lists the A. O. SMITH FPTU-80 1** with a UEF, the ratio of hot water delivered to energy used, of 3.45. This site combined that UEF with the DOE test's daily hot-water draw for the high draw pattern and arrived at 1,438 kWh of electricity a year. The registry itself does not publish this annual figure. The source is the DOE CCD, retrieved 2026-09-19. Among the 194 models registered as an electric tank at this draw pattern, this unit has the 135th lowest energy use. It sits 132 kWh above the class median of 1,306 kWh, which places it in the second-highest quarter of its class for energy use.
The high draw pattern describes a larger household, or one where showers and laundry overlap. The first hour rating, the gallons of hot water available in the first hour from a full tank, is 84 gallons, and the rated volume is 82 gallons. Those ratings match the household this figure is meant for. The 1,438 kWh does not apply to a household with a smaller daily draw, and this page has no value for other draw patterns, so that figure is not available. Models ranked below 135th use less energy at the same draw pattern. To filter by fuel, space and size, use the water heater selector. To find a same-class alternative from a model number, use the replacement finder.
The running cost is not stated here because it depends on your own electricity tariff. Multiplying 1,438 kWh by your rate gives the yearly cost for this model, and that result holds only at the federal test's daily draw. The cost calculator does this from your ZIP, and the methodology page explains how the annual cost is calculated. An installed price range is not published for this model. Its ratings, a first hour rating of 84 gallons and a rated volume of 82 gallons, lie outside the range the cost database's model was fitted on, and that range is not stretched past it.
DOE CCD · 2026-09-19