How to Enable Siri and AirPlay 2 on an Ecobee Smart Thermostat - MakeUseOf

But did you know you can also use your thermostat as a smart speaker, just like a HomePod? With a few simple taps, you can put Siri on your thermostat ...

source https://www.makeuseof.com/how-to-enable-siri-airplay-2-ecobee-smart-thermostat/