Check thermostat settings, filters, and fuel supply first when your furnace blows cold air. Call an HVAC technician for issues like sensor failures, clogged burners, or duct leaks. Skipping routine ...
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A 34-year-old furnace keeps working, but HVAC pros say the heat exchanger is the real test
A furnace can keep running for decades, but not forever, and with age usually comes inefficiency. A homeowner with a 34-year-old furnace started a Reddit discussion and asked whether it made more ...
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