The answer to 'how long does ductless system last' is that a well-maintained ductless HVAC system can typically last 15-20 years. Ductless systems, also known as mini-split systems, are highly efficient and durable. They consist of an outdoor compressor/condenser unit and one or more indoor air-handling units connected by refrigerant lines, eliminating the need for traditional ductwork.
With proper installation, regular maintenance, and occasional repairs, a ductless system can provide reliable heating and cooling for a long time. The lifespan can vary depending on factors like usage, climate, and the quality of the equipment. Homeowners who take good care of their ductless system by changing air filters, cleaning coils, and scheduling annual tune-ups can often get the maximum 15-20 years of service life.