Which is why it is better to make a quick but strong draft in your home than keep window constantly slightly open. With a quick exchange of air, your walls rema

Which is why it is better to make a quick but strong draft in your home than keep window constantly slightly open. With a quick exchange of air, your walls remain warm and continue to radiate heat. Having a window constantly slightly open means air exchange is slow but constant and the area of the wall around the window cools down significantly.