Heating Repair

Forced-Air Furnaces: Let There Be Heat

The winter months would be unbearable without central heating. Read on to learn how forced-air furnaces keep things toasty.

There’s nothing quite as awful as being able to see your breath on a cold winter’s night from your own living-room couch. Unfortunately, heating systems have been known to break down, often when the thermometer reaches its lowest depths. Although mechanics train for years to be able to fix faulty furnaces, the forced-air system itself is relatively straightforward, consisting of only four main parts: the thermostat, the burner, the heat exchanger, and the blower.

Once the thermostat senses that the air temperature has dropped below a set number (say, 72 degrees Fahrenheit), it sends an electrical signal to the burner. Attached to the burner is the gas valve, which controls the flow of fuel, and the igniter, which sets the fuel ablaze safely within the metal confines of the burner. Next to the burner is the heat exchanger, a piece of metal that warms quickly over the flames of the burner. The blower sends cold air whooshing over the exchanger, quickly raising the air’s temperature as it enters the duct system to warm the house and swiftly melt any snowballs trapped in the vents.


Furnace Repair

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Furnace Replacements

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Furnace Maintenance

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Have your furnace checked every year before start up

  • Check safety switches for proper operation
  • Check for gas leaks
  • Check for carbon monoxide
  • Check exhaust system
  • Check for correct temperature reading across furnace
  • Check blower operation
  • Check Hot surface ignitor
  • Check heat exchanger
  • Check pressure switch
  • Check circuit board
  • Check gas valve

Furnace Maintenance

  • Clean burner assembly
  • Clean flame sensor
  • Clean pressure switch hose
  • Clean and tighten electrical 
  • Clean exhaust inlet
  • Tighten gas connections
  • Clean blower compartment 
  • Clean gas manifold ports  

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