Smart Thermostats

image of a smart thermostat

What is a smart thermostat? 

A smart thermostat is a Wi-Fi enabled device that automatically adjusts heating and cooling temperature settings in your home for optimal performance.

Smart thermostats that earn the ENERGY STAR label have been independently certified, based on actual field data, to deliver energy savings.

While system designs may vary, common smart thermostat features include:


  • Many smart thermostats learn your temperature preferences and establish a schedule that automatically adjusts to energy-saving temperatures when you are asleep or away.
  • Geofencing allows your smart thermostat to know when you’re on the way home and automatically adjusts your home’s temperature to your liking.


  • Wi-Fi enabled thermostats allow you to control your home’s heating and cooling remotely through your smartphone.
  • ENERGY STAR certified smart thermostats quickly enter a low-power standby mode when inactive.


  • Smart thermostats provide equipment use and temperature data you can track and manage.
  • Periodic software updates ensure your smart thermostat is using the latest algorithms and energy-saving features available.

More Ways to Save

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.

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

Current Specification Effective Date:  January 1, 2017

Smart Thermostat Key Product Criteria: ENERGY STAR

Learn How a Product Earns the Label

The Smart Choice Made Simple

Make the smart choice for your new thermostat by choosing ENERGY STAR certified smart thermostats.  Only thermostats that have earned the ENERGY STAR deliver what you expect from a smart thermostat: including demonstrated energy savings and environmental benefits as well as reliable performance and convenience, insight and control. ENERGY STAR is the smart choice made simple.



Pledge to choose an ENERGY STAR certified smart thermostat. If everyone used an ENERGY STAR certified smart thermostat, savings would grow to 56 trillion BTUs of energy and $740 million dollars per year, offsetting 13 billion pounds of annual greenhouse gas emissions.

By taking the Pledge, you acknowledge and agree that: 1) Your personal information submitted as part of the ENERGY STAR Pledge will be shared with the EPA and organizations you have agreed to associate with your account; 2) that EPA's use of your personal information shall be governed by EPA's Privacy Policy, and 3) you may receive emails from ENERGY STAR or the associated organization.



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  • Ask the Expert – Make the Smart Choice

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  • ENERGY STAR Smart Thermostats Deliver Savings and Performance

    ENERGY STAR Smart Thermostats Deliver Savings and Performance