(Update: Resideo, a spin-off from Honeywell that makes smart thermostats and other smart devices, sells a C-wire adapter for you to use to replace your old Honeywell thermostat or any thermostat that ...

Unlock to see our ratings and compare products side by side The primary power for this thermostat is supplied via c wire (24vac ... About The Google Nest Thermostat G4CVZ is part of the ...

Still, the biggest change for installation is that the Nest Learning Thermostat (4th gen) does not need a C wire for power. Instead, it draws power from all the wires to charge the battery.

The Google Nest Learning Thermostat ... wiring is impressive. It walks you through what you do and don’t need, and the most significant detail for me is that you don’t need a C-wire.

The Nest Learning Thermostat features a 12-wire backplate, making it compatible with most existing thermostats and HVAC ...