Window Experts Reveal How Putting Yours in 'Winter Mode' Takes Just 10 Seconds and Cuts Heat Loss by Up to a Third

A cozy living room with a large L-shaped velvet couch with cushions, a large velvet rug, marble coffee table, and large windows with patterned curtains. In the back corner is a large black lamp, and in the foreground is a green chair with a wooden frame and two cushions.

During winter, we all know that drafts can be one of the main culprits that hinder all the effort we put into warming our homes.

But, say our window experts, there's one small yet oh-so-simple task you can do to cut heat loss by up to a third, and it takes only mere moments.