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During the current lapse in appropriations, EPA intends to keep the ENERGY STAR website, tools, and resources available, however they will not be updated regularly. Many services may not be available during this time.

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Effective October 20, 2025, due to the lapse in appropriations, the lists are static and not being updated.

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The Product Finder obtains information on price and availability of ENERGY STAR certified models directly from retailer websites. Prices may vary in store or online. We do not warrant the accuracy, completeness or usefulness of this information, including model images and information related to model pricing or specifications; photos of models may not represent actual models sold. Prices and available quantities are subject to change without notice. Any reliance you place on such information is strictly at your own risk. Furthermore, the retailer websites may include content provided by third parties, including manufacturers, suppliers and third-party licensors. All statements and/or opinions expressed in such retailer, manufacturer or other third party produced materials, and all articles and responses to questions and other content, other than the content provided by the EPA, are solely the opinions and the responsibility of the person or entity providing those materials. These materials do not necessarily reflect the opinion of the EPA.

ENERGY STAR Certified
Smart Thermostats

Smart thermostats that earn the ENERGY STAR label have been independently certified to deliver energy savings.

For the average American household, almost half of the annual energy bill goes to heating and cooling – that’s more than $900 a year. Being smart about how you control your temperature settings with an ENERGY STAR certified smart thermostat will help you save money and stay comfortable in your home.


Each product uses slightly different features to help homeowners save energy, so do your research, and choose the ENERGY STAR certified smart thermostat that's right for you.


Common ENERGY STAR certified smart thermostat features may include:

  • Remote Control:
    • Using your smartphone, you can adjust the temperature in your home from anywhere with an internet connection.
  • Geofencing:
    • This feature allows your thermostat to detect when you’ve left for the day to ‘set back’ your HVAC system and save money on your heating or A/C bill. If you’re on the way home, the thermostat can automatically adjust the temperature to ensure you arrive to a comfortable home.
  • Learning temperature preferences:
    • Certain ENERGY STAR certified smart thermostats can learn your preferences automatically and establish a schedule that adjusts to energy-saving temperatures when you are asleep or away.
  • Over-the-Air Updates:
    • Your thermostat may update its software periodically to ensure it uses the latest algorithms and energy-saving features available.

Buying tips:

  • Make sure the smart thermostat you purchase is compatible with your heating and cooling system. For the very highest efficiency heating and cooling equipment, you may want a controller from the same company. (E.g. Air conditioner rated at 20 SEER or higher).
  • If your smart thermostat uses WIFI, make sure it’s reasonably close to the router to prevent periodic disconnections. If your thermostat is too far from your router, consider a WIFI range extender, which can improve overall connectivity.

ENERGY STAR certified smart thermostats are also designed to be compatible with the programs that some local utilities offer, providing home owners in their service territory with incentives to help them manage reliability.

  • ENERGY STAR Certified when used with Service provided by:
    Thermostat Heating and Cooling Control Features:
    Time of Day Usage, Geofencing (User Device Based), Humidity Sensing
  • ENERGY STAR Certified when used with Service provided by:
    Thermostat Heating and Cooling Control Features:
    Time of Day Usage, Geofencing (User Device Based), Humidity Sensing
  • ENERGY STAR Certified when used with Service provided by:
    Thermostat Heating and Cooling Control Features:
    Time of Day Usage, External Temperature Detection, Humidity Sensing
  • ENERGY STAR Certified when used with Service provided by:
    Thermostat Heating and Cooling Control Features:
    External Temperature Detection, Geofencing (User Device Based), Occupancy Sensor on Device, Humidity Sensing
  • ENERGY STAR Certified when used with Service provided by:
    Thermostat Heating and Cooling Control Features:
    External Temperature Detection, Time of Day Usage, Geofencing (User Device Based), Humidity Sensing, Occupancy Sensor on Device
  • ENERGY STAR Certified when used with Service provided by:
    Thermostat Heating and Cooling Control Features:
    External Temperature Detection, Time of Day Usage, Geofencing (User Device Based), Occupancy Sensor on Device, Humidity Sensing
  • ENERGY STAR Certified when used with Service provided by:
    Thermostat Heating and Cooling Control Features:
    Time of Day Usage, Geofencing (User Device Based), Occupancy Sensor on Device, External Temperature Detection, Additional Home Temperature Sensor, Other, Humidity Sensing, Additional Occupancy Sensor
  • ENERGY STAR Certified when used with Service provided by:
    Thermostat Heating and Cooling Control Features:
    Time of Day Usage, Geofencing (User Device Based), Occupancy Sensor on Device, External Temperature Detection, Additional Home Temperature Sensor, Other, Humidity Sensing, Additional Occupancy Sensor
  • ENERGY STAR Certified when used with Service provided by:
    Thermostat Heating and Cooling Control Features:
    Time of Day Usage, Geofencing (User Device Based), Humidity Sensing
  • ENERGY STAR Certified when used with Service provided by:
    Thermostat Heating and Cooling Control Features:
    External Temperature Detection, Additional Home Temperature Sensor, Geofencing (User Device Based), Other, Humidity Sensing
  • ENERGY STAR Certified when used with Service provided by:
    Thermostat Heating and Cooling Control Features:
    External Temperature Detection, Geofencing (User Device Based), Humidity Sensing
  • ENERGY STAR Certified when used with Service provided by:
    Thermostat Heating and Cooling Control Features:
    Time of Day Usage, Geofencing (User Device Based)
  • ENERGY STAR Certified when used with Service provided by:
    Thermostat Heating and Cooling Control Features:
    Humidity Sensing
  • ENERGY STAR Certified when used with Service provided by:
    Thermostat Heating and Cooling Control Features:
    Time of Day Usage, Geofencing (User Device Based)
  • ENERGY STAR Certified when used with Service provided by:
    Thermostat Heating and Cooling Control Features:
    Time of Day Usage, Geofencing (User Device Based)
  • ENERGY STAR Certified when used with Service provided by:
    Thermostat Heating and Cooling Control Features:
    Time of Day Usage, Geofencing (User Device Based)
  • ENERGY STAR Certified when used with Service provided by:
    Thermostat Heating and Cooling Control Features:
    Time of Day Usage, Geofencing (User Device Based)
  • ENERGY STAR Certified when used with Service provided by:
    Thermostat Heating and Cooling Control Features:
    Other
  • ENERGY STAR Certified when used with Service provided by:
    Thermostat Heating and Cooling Control Features:
    Other
  • ENERGY STAR Certified when used with Service provided by:
    Thermostat Heating and Cooling Control Features:
    Other