Is the Ecobee 3 battery powered like the Nest? I figure with all the wires, it should have its own power supply.

ecobee3 Smart Wi-Fi Thermostat

ecobee3 Smart Wi-Fi Thermostat

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1 Answer from the Community

  • Answer

    It is not battery powered, and must receive voltage from the HVAC system. You'll need a common wire on the thermostat wire bundle, or you can use the power extender kit that comes with the ecobee with a little bit of extra wiring at your HVAC unit.