A:Answer The ecobee3 lite Smart Thermostat can work with low-voltage, 2-wire heat-only systems, as long as the system uses a standard 24V power supply. It is compatible with most heating systems, including electric baseboard heating and forced air systems, but make sure to check for compatibility with your specific setup using ecobee’s compatibility checker.
https://www.ecobee.com/compatibility/thermostat/