Do I Need to Replace My Heat Exchanger?
TechXpert verified by Ken Kontra
If you see signs of a cracked heat exchanger, then your heat exchanger likely needs to be replaced by a professional. In some cases, only the heat exchanger will need to be replaced, but if your furnace is over 10 years old, the amount of wear and tear can call for an entire furnace replacement.
Is the Problem My Heat Exchanger or My Furnace?
It’s hard to know for sure without having a technician conduct a combustion gas analysis.
If you see soot on the inside of the furnace, stress cracks on the furnace, notice strange smells, or see water on the floor around the furnace, there’s a good chance that this may be due to a cracked heat exchanger.
If the problem is reliable operation, hot and cold spots in your home or your furnace is more than 10 years old, then it might be time for an entirely new furnace.
What Should I Do if I Think the Problem is My Heat Exchanger?
If you think something is wrong with your heat exchanger, turn off your furnace (this will prevent harmful gases from escaping), then call a professional to come and assess the situation.
Your technician will perform the tests you need and they’ll let you know your next steps as you prepare to replace your heat exchanger or get a new furnace altogether.
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