The real difference between a boiler and a furnace
If you're staring at a big metal box in your basement and trying to figure out the difference between a boiler and a furnace, don't worry—most people use the terms interchangeably even though they're completely different machines. It's one of those "homeowner basics" that nobody actually teaches you until something stops working and you have to call a repair technician. While both systems have the same goal—keeping you from freezing during the winter—they go about it in ways that couldn't be more different. ...