Yeah, this thread got me to re-investigate this again (it's been several years), and Ecobee should support it (although I'd lose connection to the external temp

Yeah, this thread got me to re-investigate this again (it's been several years), and Ecobee should support it (although I'd lose connection to the external temp sensor, but that's not a big deal, I have my own weather station already). I may finally pull the trigger because I hate the way that the "smart" thermostat that came with my system works.