First, place the temperature sensor in the same room as the fireplace.
For this, you’ll need a smart hub, indoor and outdoor temperature sensors, and a connected home ventilation system. First, place the temperature sensor in the same room as the fireplace. Then, program the indoor temperature as a trigger, and whenever it exceeds 80 degrees and the outdoor temperature is 50 degrees or less, set the ventilation system to activate for a set amount of time, or until the temperature decreases to a reasonable level.