Time for your annual Furnace Maintenance During the cold season, your furnace never gets a rest, this piece of machinery works around the clock, many times when you are out. A furnace takes a lot of punishment and can only operate properly if maintained year round. http://us2.campaign-archive1.com/?u=7ca8b9a6037877e9bc264a5d0&id=7449a97736&e=4f325640fd