The only book written for homeowners and consumers to help you understand how heating, air conditioning, and duct systems work together as a home comfort system. Whether you are looking to purchase a new heating and air conditioning system or just looking to solve some ongoing problems your contractor keeps saying is "normal" operation, this book will bring to youan understanding of heating, air conditioning, and home comfort systems and how they work together so you will be better prepared to make the right decisions when it comes to making your home or business as comfortable and energy...