Sounds hard If you can’t hook into the neighbours stove or hood. Maybe detect if the hood of the neighbors is turned on through a windspeed sensor (these things that rotate). TBH this sound like you should just fix the mechanism/back flow valve that restricts the airflow coming in if your hood is turned off.
There is a German YouTuber doing a bike trip through Afghanistan right now. I wonder what he thinks right now after hearing about this lol