A Common and Dangerous Heating Mistake

Furnace Maintenance in Plano, TX

Restricted airflow can cause your heat exchanger to crack and leak a very dangerous gas into your home.  The potentially fatal and odorless gas is carbon monoxide (CO).

Let me explain…

Furnace Maintenance in Plano, TXA clogged filter restricts airflow which causes your furnace heat exchanger to overheat.  When they overheat, they crack.  Once a heat exchanger cracks, the CO leaks into your home.  The purpose of the air filter is to catch dust and debris from entering your HVAC system.  Over time, they get full of dust and debris and air cannot properly flow through which causes something you do NOT want: Restricted Airflow.

Your heat exchangers job is to heat up and transfer the heat to the air that passes through the furnace.  When they heat up the metal expands which makes the cracks much bigger. This will allow more carbon monoxide fumes to enter your home.




Carbon monoxide (CO) is called the “silent killer” because it is odorless, colorless, deadly, poisonous gas.  People might not even know that they are being exposed.  Initial symptoms of CO poisoning are similar to the flu

  • Headache
  • Fatigue
  • Shortness of breath
  • Nausea
  • Dizziness

High levels of CO poisoning results in more symptoms:

  • Mental Confusion
  • Vomiting
  • Loss of Muscular coordination
  • Loss of consciousness
  • Ultimately death

I think it goes without saying that carbon monoxide isn’t something that you want in your home.


How do you prevent it?

Furnace Maintenance in Plano, TXChange your filter regularly and have your furnace maintenance done every 6 months!

We recommend that homeowners get their furnace inspected by a professional every winter.  During these check-ups the technician will be able to tell if there is a problem with dirty filter, warning signs of overheating, and see if the exchanger is cracked.



Call us today to schedule one of our trusted technicians to come and give your furnace a thorough inspection.