Electric Heater | Electric Heater Repair | Electric Heater Service



How an Electric Furnace Works

The electric furnace has a powerful motorized fan located at its base, which pulls air from the inside of the home and pushes it through the furnace. The fan is kept clean by an air filter (throw-away type, media-filter type, or electronic type), which protects the fan motor from dust, dirt and other impurities. A filter also keeps dust and dirt particles from reaching the electric coil, which can cause an unpleasant odor and other complications.

Inside the furnace, the fan-forced air passes through three red-hot heating coils absorbing heat and releasing it, via ductwork, into all the rooms of the home. Imagine an electric hair dryer with hot coils and a stream of air blowing through it – you essentially have a small hand-held electric furnace!

The furnace has an internal thermostat, which tells it how fast to run the fan, and at what temperature the coils are to be heated. The furnace will add heat to the incoming air and continuously circulate the air until the set point of the room’s thermostat is satisfied. The furnace will then shut down and wait for the next temperature-drop signal from the room thermostat to begin the heating cycle again.

The local experts at ServiceMark Heating, Cooling and Plumbing have great experience with repairing and maintaining electric heating systems, and can recommend an energy efficient replacement, if needed, which can greatly reduce the amount of energy needed to heat the home, and save the homeowner on energy-use expenses.