16 Nov. 17

Cracked Heat Exchangers

Furnaces are very safe machines, but under the right circumstances and with the right malfunctions, they can be dangerous machines. That should be no surprise. They ignite combustible gasses to create heat and fire to warm your homes. If this sophisticated system is damaged, or otherwise faulty, the consequences can be more extreme than a chilly evening.

Primarily, the largest danger and most serious malfunction is a crack in the heat exchanger. The heat exchanger is a metal shield in the furnace that is directly warmed by the combusting gasses and fire in the burner of the furnace. The purpose of the part is to allow only the heat to transfer to the air in your vents while keeping any exhaust and fumes out of your indoor air. A crack in this heat exchanger allows such dangerous gasses as carbon monoxide to leak through into your ductwork.

Reasons Your Heat Exchanger Could Crack

A heat exchanger should last 15-20 years, but, there are a few factors that could lead to a premature crack!

  • Improper Air Flow: Clogged and dirty air filters or blocked vents could cause the furnace to work harder that it was designed. Extrapolate a harder workload over years, and a premature crack in the heat exchanger will not be far off.
  • Malfunctioning Burners: A malfunction in your burner left unfixed and unattended could be causing your furnace to burn hotter than it should! This increase in heat will be sure to create a crack.
  • Excessive Condensation: A furnace left out of use for some time can acquire condensation. This condensation then accumulates in the heat exchanger, causes it to rust, and creates a crack.

Your Best Defense — Annual Furnace Tune-ups!

While most heat exchangers will last throughout the entire lifespan of the furnace without problem, the consequences of an undiscovered crack are seriousness enough to remain vigilant. The best way to monitor your furnace and identify a problem in your heat exchanger is through annual maintenance. Schedule your Tuneup, and let our technicians inspect every aspect of your furnace.

Schedule your $69 Furnace Tuneup Today!