Should I Worry if My Furnace Makes Loud Noises?
We get so used to the normal sounds of a heating, ventilation, and air conditioning system that they tend to become part of the background and are easy to ignore. You likely don’t notice them at all unless the equipment stops working correctly. An efficiently running furnace likely has a gentle hum, with the occasional whoosh of air as it rushes through the fans. When it’s not working correctly, you might hear anything from banging and clanging to clicking and squealing. If you notice a change in the sounds of your heating system, call an HVAC professional
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