ENERGY STAR® Certified Smart Thermostats Almost half of the annual energy bill for the average American household goes to heating and cooling—that's more than $900 a year. You can take control of your energy costs with an ENERGY STAR certified smart thermostat. With a smart thermostat you’ll be able to enjoy: Convenience: Many smart thermostats learn your temperature preferences and establish a schedule that automatically adjusts to energy-saving temperatures when you are asleep or away. Control: Wi-Fi enabled thermostats allow you to control your home’s heating and cooling remotely through your smartphone. Anytime, anywhere. Insight: Smart thermostats provide equipment use and temperature data you can track and manage. Talk to your contractor to learn more.