This article provides a brief overview of Nest thermostat + Honeywell humidifier setup. I had help from a qualified professional. Please follow these directions at your own risk.
Please note that I'm not responsible for any damages to you or your property that might result from the information shared here. All my installations were completed by a professional.
Nest Thermostat / Humidifier Wiring Diagram
White Roders 90-290Q (16A, 250VAC, COIL 24V 50/60 Hz)
Wiring colors here match the diagram above
Nest Thermostat wiring