The answer to 'lifespan of replacement' is that the average lifespan of HVAC equipment can vary significantly, but most systems have a lifespan of 10-15 years with proper maintenance. Factors like the quality of the equipment, how often it's used, and how well it's maintained can all impact the lifespan. High-efficiency systems may last a bit longer, around 15-20 years, while older, lower-efficiency models may only last 8-12 years.
It's important to have your HVAC system regularly serviced by a professional to maximize its lifespan. Things like changing air filters, cleaning the coils, and addressing any issues quickly can go a long way in extending the life of your equipment.