The answer to 'lifespan of furnace' is that the average lifespan of a furnace is 15-20 years with proper maintenance. Furnaces are major investments for homeowners, so it's important to understand their typical lifespans. Proper annual maintenance, including cleaning and tune-ups, can help extend the lifespan of a furnace. Factors like usage, home size, and furnace quality also impact how long a furnace will last.
With regular care, many furnaces can operate reliably for 15-20 years before needing replacement. However, older or poorly maintained furnaces may only last 10-15 years. It's a good idea to plan for furnace replacement every 15-20 years to ensure your home stays comfortable and energy-efficient.