Getting to Know the Beast in Your Basement
A forced-air heating system isn’t as scary as it seems
Many different appliances can be used to heat a house, including boilers, water heaters, heat pumps, and woodstoves. However, most homes in the United States are heated by a forced-air furnace. This article covers the basics of the furnace system—the different types and efficiency ratings—as well as best practices and common perils and pitfalls of the appliance installation and duct layout.
Photo: Justin Fink