Hi,
If you want to do the outdoor threshold’s change mode logic and more, just look at
It’s a fully zoned Heating/Cooling solution which works with any ST connected thermostat. You can use smart vents or not to create physical/virtual zones inside your home.
You can control also room thermostats (for fireplace, basement, etc.) as well based on your main thermostat’s settings.
If you have ask Alexa, it can send verbal messages to Alexa for any major event (customizable).
Another smartapp can take care of your door/window contacts:
Regards.