Do I have a Boiler or a Furnace?

Do I have a Boiler or a Furnace? What's the difference between a furnace and a boiler? Homeowners typically refer to their heating unit as a "furnace" - but not all homes have a furnace. So, what’s the difference between a boiler and furnace and why does it matter? A boiler uses hot water to heat the living space, while a furnace uses warm air. The heat and the way it's circulated throughout your home are different. What is a boiler?  Boilers heat water. The water is then turned into steam [...]