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The ABC’s of Home Heating – Heat Exchangers

In a gas furnace, the heat exchanger is one of the most critical components of the heating process. It’s where the combustion gasses enter after exiting the burners. As the combustion gasses are drawn into the heat exchanger, heat is transferred onto the heat exchanger walls. The combustion gasses, which are at this point beginning to cool down, exit through exhaust pipes by a draft inducer blower and are sent out of the home. In a high efficiency furnace, these gasses go through a second heat exchanger where even more heat is extracted before they are vented out of the home.

As part of the heating process, a blower motor and fan take air from inside the home and draw it across the heat exchanger, which has been heated by the combustion gasses. The air picks up heat from the heat exchanger walls and is blown through the home’s ductwork, where it then exits through vents throughout the home.

Because the heat exchanger is responsible for removing exhaust fumes from the home, it’s important that a qualified heating technician inspect the unit for any cracks or damage that can cause dangerous carbon monoxide gas (CO) to leak into the living space.

Have questions about your furnace heat exchanger? Call ABC Plumbing,Heating, Cooling and Electric. We’re here to help.

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Neighbors Are Saying About ABC
  • “Tom was awesome! He is very personable and explains the whole process well. He did a great job and ensured that he used 5-star service throughout the process. I will definitely use ABC and Tom again in the future for electrical work.”

  • “Bill showed up on time to repair our broken air conditioner. ABC kept in touch throughout the day to let me know time he would be arriving too. Bill was professional, friendly, helpful, and knowledgeable. We wound up signing up for monthly care package because Bill and ABC really made…”

  • “We were very pleased with the service performed by Brett Pack in performing the annual maintenance of our air conditioning unit. He noted it was low on refrigerant, which he then added after consulting with us. He also made sure we took advantage of all available discounts.”

  • “Tom did a super job fixing our electrical problem. He is one of the best electricians I have ever had in my home for repair work. I would highly recommend Tom and ABC Company if you need any type of electrical work. He took his time and explained everything and…”

  • “I am so impressed with Chris and ABC Plumbing, Heating, Cooling. His friendliness honest approach to his Job is remarkable. Thanks Chris for making my day and believing that they are still great honorable people out there.”

  • “Our AC was not working in the 90-degree summer heat. Josh identified that power was not going to the furnace blower. He identified that power was not going to the furnace breaker. His keen eye spotted that the wire leading into the breaker had frayed. He cut out the frayed…”

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