Operating a furnace without filtration introduces unfiltered air into the system. This means dust, debris, pollen, and other airborne particles are drawn directly into the furnace components. An air filter is designed to capture these contaminants, preventing them from circulating throughout the heating system and the home’s air supply. A typical furnace uses a forced-air system, which relies on the filter to maintain clean airflow.
The presence of an air filter is essential for maintaining both the furnace’s efficiency and the quality of indoor air. Without filtration, the furnace’s blower motor and other internal components are susceptible to accumulating dust and debris. This buildup reduces the system’s ability to effectively heat the home, leading to higher energy consumption and potentially requiring premature repairs or replacement of parts. Furthermore, the absence of a filter compromises indoor air quality, as airborne particles can then circulate freely, which may exacerbate allergies or respiratory issues.
