Lennox system and want to install smart thermostat. It has way more wires than any other system I've ever had! Has a humidifier, outdoor sensor, and is 2 stage. Advice on how
Heating and Air Parts - Lennox OEM Furnace & AC Parts - 12U67 S30 - Heating and Air Parts
This pricey smart thermostat promises 'perfect' indoor temps - CNET