The Furnace consists of several major components; the thermostat, the burner, the heat exchanger, the blower motor, the ductwork, and the flue or vent piping.


The thermostat acts a control, monitoring the temperature of the house, and brings the furnace on when the house needs to be heated.


The burner is the means through which the fuel is delivered to the system, ignited by a hot surface igniter, and burned in an efficient, controlled environment.

Heat Exchanger:

Heat produced from the burning fuel in the burner is transferred to the metal walls of the heat exchanger. The heat exchanger also serves as a divide between the source of combustion and the air distributed throughout the house, ensuring that harmful byproducts are not released into the household.

Blower Motor:

The blower motor creates an air current that pulls air from the return ductwork, across the heat exchanger, and into the supply ductwork.


The ductwork transfers cooled air from the household to the furnace and the heated air from the furnace throughout the home.

Flue or Vent Pipe:

The flue or vent pipe serves to exhaust byproducts of the combustion process to the outside.

Benefits of a Furnace System

Disadvantages of a Furnace System