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What Is a Furnace Heat Exchanger and Why Is It Important?
Gas and oil furnaces burn fuel to provide heat for homes, and that presents a basic problem ... That’s the job of the heat exchanger. “Think of the heat exchanger as the heart of your heating ...
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12 Common Furnace Problems and How to Fix Them, According to Experts
Other problems that could keep your furnace from heating include safety switch issues, a faulty heat exchanger, ignition ...