Assertion: thermostat's wire | /r/HasProperty | needed
Facets:
Source sentences:
text: If any cooling, like an air conditioner, or fan control is required, more wires are needed.
text: Finally, many digital thermostats require 24 volts for power, so the common wire is necessary.
text: if you have the right internet requirements for a smart thermostat, how much functionality you want/need, and if you have a C wire (the "common" wire that is needed to install most smart thermostats).