Question: what are the different types of heating systems used in a home?
Answer: Furnaces. The majority of North American households depend on a central furnace to provide heat. ... 
Boilers. Boilers are special-purpose water heaters. ... 
Heat Pumps. ... 
Gas-Fired Space Heaters. ... 
Unvented Gas-Fired Heaters: A Bad Idea. ... 
Electric Space Heaters. ... 
Wood-Burning and Pellet Stoves. ... 
Fireplaces.