We finally had our new vinyl double pane windows installed. Man do they look awesome. We had single pane aluminum windows before. We had 2 such windows in our master bedroom located a good distance from our wood insert. Usually its 75 degrees in the living room and 65 degrees in the bedroom. Last night when I went to bed I couldn't believe it but our bedroom was 72 degrees. Way Way too warm. Hard to sleep with so much heat in there. Our old windows you could walk by and feel the widow sucking the heat from you. Wish I had done it years ago. Probably could have saved a chord of wood and some $$ in the summer.