A central heating system has a primary heating appliance such as a furnace or boiler located in an out-of-the-way place such as a basement or garage. It delivers heat throughout the house either by pumping warmed air through a system of air ducts or sending hot water or steam through pipes to room radiators or convectors. The boiler is the most important part of a central heating system. It’s like a big fire that has a continuous supply of natural gas streaming into it from a pipe that goes out to a gas main in the street. When you want to heat your home, you switch on the boiler with an electric switch.
We can think of a central heating system as a continuous circuit moving hot water out from the boiler, through all the radiators in turn, and then back again to pick up more heat. In practice, the circuit is usually more complex and convoluted than this. Here’s how the whole central heating works:
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24 Heating & Cooling, Inc (formerly known as MBJ Heating & Air Conditioning) offers heating and cooling service to residents and businesses in Chicago or other Chicagoland area.