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.
That the content has a max-width is a good thing. Lines that are too long are hard to read. And going by your screenshot your alternative would be to stretch it all the way over the viewport? No way
Direct electrical heating will always be less efficient because it’s 1 kWH of power = 1 kWH of heat. ACs are air-air heat pumps where in my country „heat pumps“ refer to water-air or water-soil heat pumps. Since they are literally pumping heat from one place to another, they are up to 5x more efficient than any infrared heater or electrical furnace
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