My heat-only system only has two or three wires connected to the thermostat. Am I compatible with ecobee?
heating - Wifi thermostat to replace old mechanical 2-wire 110V Honeywell? - Home Improvement Stack Exchange
Trying to replace this old 2 wire thermostat for a newer digital one. Problem is older unit does not have leads labeled or which cable is which. Any help on how to
I'm looking for 2 wire HA compatible smart thermostat suggestions : r/homeautomation