What you need to know about the best smart thermostats in 2020. We compare the top selling smart thermostats and why you might want to choose one smart thermostat over the other. We've also included our most popular links for installing and troubleshooting a smart thermostat. Read the show notes on the best smart thermostat in 2020 here or you can read our comparison of the Nest vs Ecobee Thermostat.