When you have recently determined that you need a new boiler, there are many companies out there that will be able to help. You can expect a Boiler Westchester NY company to come and help you heat your home better and more efficiently, but you should first understand the components that go into heating your home. The more information you have about your home the better the company will be able to help you. Here are a few ways to determine what size of unit you will need.