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State HPTA-66 2**

State HPTA-66 2** is in the DOE listing as of Oct 22, 2026. State HPTA-66 2** is in the ENERGY STAR list as of Oct 22, 2026.

  • Heat pump water heater
  • 2 listed models

Its figures are also listed under A. O. Smith HPTA-66 2**.

Storage volume
68gallons
UEF
3.84Uniform energy factor
First-hour rating
83gallonsHot water in the first hour
See it among every heat pump model

Advertised and certified figures

State HPTA-66 2**: advertised and certified
State HPTA-66 2**: advertised and certified First-hour rating: advertised 83 gal, certified 83 gal. First-hour rating Advertised 83 gal Certified 83 gal
FigureAdvertisedCertifiedAdvertiserRead
First-hour rating 83 gal 83 gal State Read Oct 4, 2026

Certified figures by listed model

Model numberStorage volume (gal)UEFFirst-hour rating (gal)Recovery efficiencyDraw pattern
CSHP-66 2**683.8483435%High
HPAX-66-DHPT 2**683.8483435%High

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
CSHP-66 2**683.8483435%
HPAX-66-DHPT 2**683.8483435%

It holds 68 gallons in the test, 2 gallons more than its 66-gallon sold size. Over one hour from a full tank, it gave 83 gallons in the test (its first-hour rating). Its tank holds 68 gallons, so reheating adds 15 gallons during the first hour. In the first hour, 121 of the 481 heat pump models give more hot water. The median heat pump model gives 72 gallons in its first hour.

Under this basic model, 2 model numbers are ENERGY STAR certified. In the test, it gives 3.84 units of hot water energy per unit it uses (its UEF). It moves heat from the air rather than making it, so its UEF passes 1. Its test simulated a day of high hot water use (its draw pattern). Of 237 heat pump models with the same draw pattern, 124 have a higher UEF. A UEF of 3.88 is the median for its type and draw pattern. Its recovery efficiency is 435%, because it takes heat from the air as it reheats water.

It is sold as CSHP-66 2** and HPAX-66-DHPT 2**. 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 HPTA-66 2**.

It may qualify for 20 rebate programs. It may qualify for 7 more if it meets terms its figures do not show.

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
SMUD Heat pump water heater CA May qualify if it meets the other terms 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
DC Sustainable Energy Utility DCSEU Residential Heating & Cooling Rebates DC May qualify if it meets the other terms 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
Energy Trust of Oregon OR 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
Puget Sound Energy Heat Pump Water Heater Rebate WA May qualify Its own page
Seattle City Light Heat Pump Water Heater Rebates WA May qualify 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.