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How Does a Furnace Work?

As with most components of your HVAC system, your furnace is a complicated piece of machinery. Understanding how your furnace works may seem difficult. This is an important task to take on, however, as a basic understanding can help you diagnose problems. To explain how a furnace works, we’ve detailed the function of the main parts. Burners In gas furnaces, the burners are typically fueled by natural gas that is ignited by a pilot light. The burners are placed near the bottom of the furnace since heat rises naturally, resulting in increased efficiency. In electric furnaces,