Trying to upgrade to Nest. What is O/B wire & why is white wire in W2/Aux? : r/Nest

That time we cranked up the heat in the CNET Smart Home to 105 degrees - CNET

Nest thermostat star connector - Google Nest Help

Alarm.com tstat and heat pumps . . . again - Support - Surety Support Forum

How To Remove a Nest Thermostat From the Wall

PART- Google Nest 3rd Thermostat Wire Base - Fits ALL Nest 3rd Generation Wiring

What Is the OB Wire on a Nest Thermostat

Nest Thermostat and Heat Pumps w/ Aux

E/W1 with Jumper to W2 - Community Forums

Wiring Base Circuit Board Part: New Google Nest Thermostat 3rd Gen E360129 A0013

Nest Learning thermostat with a heat pump. Should the white wire go to W1 or W2/Aux on the Nest? Blue labels are mine, so do not trust them. : r/Nest