Furnace maintenance is essential for several reasons. Firstly, it can improve your furnace's efficiency and performance, leading to lower energy bills and increased comfort levels. Secondly, regular maintenance can help detect and prevent potential issues before they become major problems, preventing costly repairs and replacements. Thirdly, it can help extend the lifespan of your furnace, as regular cleaning and tune-ups can prevent excessive wear and tear. Lastly, regular furnace maintenance can ensure that your furnace operates safely and reduce the risk of carbon monoxide leaks, which can be dangerous and potentially fatal. Overall, furnace maintenance is crucial for ensuring your heating system's safety, efficiency, and longevity.