A traditional furnace, commonly used in most of the houses, sucks air in through the return vents. It warms the air with the heat exchanger or cools it down and then it pushes air out with the air fan through the registers that go into eac...

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When we talk about air duct cleaning, we try to clean all the vents, returns, main line, however furnace filter is often left out. Furnace keeps us warm in winter time and cool is summer time. In order for it to run properly, furnace filt...

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