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Lochinvar HPTS-66 2**

Lochinvar HPTS-66 2** is in the DOE listing as of Oct 22, 2026. Lochinvar HPTS-66 2** is in the ENERGY STAR list as of Oct 22, 2026. Lochinvar HPTS-66 2** changed its certified uniform energy factor for model HPSA065KD 2** from 4.02 to 3.7 in the ENERGY STAR list between October 2025 and February 2026.

  • Heat pump water heater
  • 1 listed model

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

Storage volume
67gallons
UEF
3.70Uniform energy factor
First-hour rating
82gallonsHot water in the first hour
See it among every heat pump model

Product history

Lochinvar HPTS-66 2** was in the DOE listing by Oct 1, 2026.

Lochinvar HPTS-66 2** changed its certified uniform energy factor for model HPSA065KD 2** from 4.02 to 3.7 in the ENERGY STAR list between October 2025 and February 2026.

Lochinvar HPTS-66 2** has a recorded ENERGY STAR market-availability date of Jun 6, 2022. It was in the ENERGY STAR list by Aug 11, 2023.

Advertised and certified figures

Lochinvar HPTS-66 2**: advertised and certified
Lochinvar HPTS-66 2**: advertised and certified Size: advertised 66 gal, certified 67 gal (advertised nominal size, certified storage volume). Size: advertised 67 gal, certified 67 gal (certified storage volume). UEF: advertised 3.70, certified 3.70. First-hour rating: advertised 82 gal, certified 82 gal. Size · advertised nominal size, certified storage volume Advertised 66 gal Certified 67 gal Size · certified storage volume Advertised 67 gal Certified 67 gal UEF Advertised 3.70 Certified 3.70 First-hour rating Advertised 82 gal Certified 82 gal
FigureAdvertisedCertifiedAdvertiserRead
Size 66 gal, nominal size 67 gal storage volume Lochinvar Read Oct 4, 2026
Size 67 gal 67 gal storage volume Lochinvar Read Oct 4, 2026
UEF 3.70 3.70 Lochinvar Read Oct 4, 2026
First-hour rating 82 gal 82 gal Lochinvar Read Oct 4, 2026

Certified figures by listed model

Model numberStorage volume (gal)UEFFirst-hour rating (gal)Recovery efficiencyDraw pattern
HPSA065KD 2**673.7082425%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
HPSA065KD 2**673.7082425%

It holds 67 gallons in the test, 1 gallon more than its 66-gallon sold size. It delivers 82 gallons of hot water in the test's first hour. That is 15 gallons more than its tank holds, since it reheats during the hour. Of 481 heat pump models, 127 give more hot water in the first hour. Among heat pump models, the median first-hour rating is 72 gallons.

The single model number sold under it is ENERGY STAR certified. For each unit of energy it uses, 3.70 units end up in the hot water (its UEF). A UEF above 1 is possible because it moves heat from the air into the water. The daily hot water use in the test, called its draw pattern, was high. Of 237 heat pump models with the same draw pattern, 145 have a higher UEF. On its draw pattern, the median heat pump UEF is 3.88. Its recovery efficiency is 425%, because it takes heat from the air as it reheats water.

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 HPTS-66 2**.

It may qualify for 20 rebate programs. Another 7 rebate 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
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.