Warum nicht ??

Why don’t they exist in Finland? most places have double windows, they trap the cold inside and in the chamber where it’s stored (which the old design is the box on the oustide and newer ones is with a massive whole in the wall with a wood plate in the inside of the room they are) and they are a hell to repair (I used to have them in Spain). I prefer not having to deal with them. Just get a pair of courtains