The answer to 'lifespan of furnace' is that the average lifespan of a furnace is 15-20 years, with proper maintenance and care. Furnaces are a critical component of a home's HVAC system, responsible for heating the interior spaces. The lifespan can vary depending on factors such as the quality of the equipment, how often it's used, and the level of maintenance it receives.
Proper maintenance, including regular tune-ups, filter changes, and cleaning, can help extend the lifespan of a furnace. Additionally, upgrading to a more energy-efficient model can also improve the longevity of the system. It's important to have a professional HVAC technician inspect and service your furnace annually to ensure it's operating safely and efficiently.