Deicing locks is pretty easy if you have the right tools and materials. All you need is some type of ice scraper and some heat source to melt the ice from your lock. A lot of people do not realize that locks have some sort of an internal heat source that melts ice when it gets too cold. It's called an "electricity set" and they are used on car door locks and ignition systems. When you buy your lock from your local locksmith they are going to give you one with your purchase. But if they don't give you one with your purchase then you will need to buy one from your local hardware store. When buying your lock set make sure that it has an electricity set because not all sets do. If you don't have one then don't worry because it's pretty simple to find one at any local hardware store. They are usually priced between $5-$20 dollars depending on how many pieces they come with.