The Cool Down on MSN
A 34-year-old furnace keeps working, but HVAC pros say the heat exchanger is the real test
"The new ones have more safeties built in and won't have the pilot light." ...
One of the things you, as a homeowner, need to know about having an old furnace is how to tell when you need to get it fixed vs. replaced, which you can often determine based on its age. Your system's ...
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