It's -22 now for me. My house has double windows(literally 2 windows on top of each other) they are made of insulating materials and not aluminum like in Lebanon. They do not leak air like the windows in Lebanon. And you can't open a window even if you try(because it is frozen in its place) so having the house all closed up with a heater in it for weeks keeps it warm lol.

I was thinking that in Lebanon someone really should work on making new kinds of windows, advertise it as a way to save on heating and gas in the mountain, it might work as a business. If windows don't leak air and don't pass the outside temperature, people would save a lot on diesel and wood...