Whats the difference between a boiler and furnace?
A boiler uses oil, gas or electricity to generate hot water and in some cases steam, which is piped to baseboard radiation systems on the perimeter of the house. A furnace burns oil or gas to heat up air which is forced by a fan through a large ducted system and blown through registers in various parts of the house. Generally speaking, a cast iron boiler for a baseboard system has more than twice the life expectancy of a furnace for a hot air system.
