There are several factors that determine the size of a furnace. The climate, the size of the home, and the heating needs of your family will all play a role in determining what size of furnace you need. For example, in Memphis, TN, the winter temperatures are typically much colder than the summer, and you may need a larger furnace to keep you warm. Listed below are a few tips that can help you determine what size furnace you need for your home. The first factor in determining the size of furnace you need is the size of your home. There are two types of homes: open plans with few…