Why is my furnace so loud?

If Your Furnace Is Loud…

If your furnace has always been loud, it’s most likely due to improper design and installation. Furnaces should be designed according to the air flow and heating load needed for the house.  Unfortunately, many contractors determine size using a rule of thumb, or install the same size as the previous system, and don’t do the proper engineering to determine what size furnace, air conditioner and duct work is needed.

If it’s a new problem, the blower motor could be going bad and may sound like a squealing bearing or it could be how the furnace is igniting. If you hear a BOOM when the furnace ignites then the furnace needs to be cleaned.

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