How Do Furnaces Work?

If there is an older heating system in your home than it is probably a furnace. Furnaces are one of the oldest residential heating systems. During ancient times, a furnace was fueled using coal and wood. Modern furnaces use gas, propane, or electricity and can operate at high-efficiency levels.

What Fuels Your Furnace?

Regardless of what fuels your furnace, it will work using a forced air heating system to warm your home by use of a heating cycle. Gas or propane fuel is kindle in the burner. The flares warm up a metal heat transfer and exhaust out of the pipe. The heat exchanger transmits its warmth to the entering air. The heating system blower forces the warm air into the ductwork and disburses it around the home. As the heated air fills every room, the frigid, denser air is exhausted back into the heating system through the return ducts, rerunning the operation.


It is a temperature mobilize switch that operates heat using a control board within the furnace to initiate the warming cycle by rotating on an ignition switch.

Furnace Burners

They are a pair of tubes where gas is conducted and burned. Flame sensor, kindler, and gas pipes work in unity to manage the flares. When the furnace signalizes heat, the gas pipes open and the combination is inflamed.

Heat Exchanger

It is a set of metal pipes that are warmed by the burners in order to heat the internal air. As gas burn within the heat exchanger, these metals become torrid and transmit their luminous heat into the passing air. Any loss to the heat exchanger may let ignition gases flow within the house air.

Barker Services Can Help You

We provide annual heating maintenance, ductwork modification, whole house temperature zoning, new construction and service agreements. Our products consist of geothermal solutions, indoor air quality systems, solar solutions, and light commercial systems. Contact our heating specialists at Baker Services to service your furnace in Brazos Valley today.