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American FPTU-50 1**

American FPTU-50 1** is in the DOE listing as of Oct 22, 2026. American FPTU-50 1** is in the ENERGY STAR list as of Oct 22, 2026.

  • Heat pump water heater
  • 1 listed model

Its figures are also listed under A. O. Smith FPTU-50 1**.

Storage volume
46gallons
UEF
3.35Uniform energy factor
First-hour rating
66gallonsHot water in the first hour
See it among every heat pump model

Advertised and certified figures

American FPTU-50 1**: advertised and certified
American FPTU-50 1**: advertised and certified Size: advertised 50 gal, certified 46 gal (advertised nominal size, certified storage volume). Size: advertised 46 gal, certified 46 gal (certified storage volume). UEF: advertised 3.35, certified 3.35. First-hour rating: advertised 66 gal, certified 66 gal. Size · advertised nominal size, certified storage volume Advertised 50 gal Certified 46 gal Size · certified storage volume Advertised 46 gal Certified 46 gal UEF Advertised 3.35 Certified 3.35 First-hour rating Advertised 66 gal Certified 66 gal
FigureAdvertisedCertifiedAdvertiserRead
Size 50 gal, nominal size 46 gal storage volume American Read Oct 4, 2026
Size 46 gal 46 gal storage volume American Read Oct 4, 2026
UEF 3.35 3.35 American Read Oct 4, 2026
First-hour rating 66 gal 66 gal American Read Oct 4, 2026

Certified figures by listed model

Model numberStorage volume (gal)UEFFirst-hour rating (gal)Recovery efficiencyDraw pattern
HPHE6250H045DV 1**463.3566407%Medium

UEF is the uniform energy factor. A dash means the model has no such figure.

ENERGY STAR certified models

Model numberStorage volume (gal)UEFFirst-hour rating (gal)Recovery efficiency
HPHE6250H045DV 1**463.3566407%

It holds 46 gallons in the test, 4 gallons less than its 50-gallon sold size. Over one hour from a full tank, it gave 66 gallons in the test (its first-hour rating). That is 20 gallons more than its tank holds, since it reheats during the hour. Among 481 heat pump models, 330 have a higher first-hour rating. The median heat pump model gives 72 gallons in its first hour.

Its single model number, HPHE6250H045DV 1**, is ENERGY STAR certified. In the test, it delivered 3.35 units of hot water energy for each unit used (its UEF). It moves heat from the air rather than making it, so its UEF passes 1. In the test, daily hot water use was set to medium (its draw pattern). Among 226 heat pump models on its draw pattern, 193 have a higher UEF. On its draw pattern, the median heat pump UEF is 3.68. While it reheats, the water gains 407% of the energy it uses (its recovery efficiency).

Its test figures match those of 4 other basic models. Each of them is listed under a different brand. For the full group, see the A. O. Smith FPTU-50 1**.

In 17 states, 17 rebate programs may accept it. Another 5 programs may accept it if it meets their other terms.

Also listed as

They carry every figure in the table above.

Rebates

ProgramStateStatusProgram page
Efficiency Arizona AZ May qualify Its own page
SRP Heat pump water heater rebate AZ May qualify Its own page
CleanPowerSF Electrify Your Home bill credits CA May qualify Its own page
Los Angeles Department of Water and Power Consumer Rebate Program CA May qualify Its own page
SVCE Home Rebates CA May qualify if it meets the other terms Its own page
TECH Clean California HEEHRA Phase I CA May qualify Its own page
Colorado Springs Utilities Water heater rebate (heat pump) CO May qualify Its own page
Delaware Electric Cooperative Heat Pump Water Heating Rebate DE May qualify Its own page
Hawai‘i State Energy Office eHale Energy Saver Rebate Program HI May qualify Its own page
Ameren Illinois Instant Incentives IL May qualify Its own page
DTE Energy Water Heaters (heat pump) MI May qualify Its own page
Entergy Mississippi Residential Appliances Program MS May qualify Its own page
NC DEQ Energy Saver North Carolina NC May qualify Its own page
NHSaves Heat Pump Water Heater NH May qualify if it meets the other terms Its own page
PNM Home Energy Checkup Rebates NM May qualify Its own page
PECO Appliance Rebates PA May qualify Its own page
Rhode Island Energy Heat Pump Water Heater Rebate RI May qualify if it meets the other terms Its own page
TVA EnergyRight TN, AL, MS, KY, GA, NC, VA May qualify Its own page
Dominion Energy Virginia Water Energy Savings Program VA May qualify Its own page
Virginia Energy Home Energy Rebates VA May qualify if it meets the other terms Its own page
Focus on Energy (heat pump) WI May qualify if it meets the other terms Its own page
Focus on Energy Home Electrification and Appliance Rebates WI May qualify Its own page

Programs change their terms. Check the program's own page before you buy.

Updated Oct 22, 2026 · Methodology

Not covered

  • Changes to an advertised figure after the date beside it.