The answer to 'which is better mini split or' is that mini-split systems are generally better than central HVAC systems for many homeowners. Mini-splits offer more flexibility, energy efficiency, and targeted climate control compared to traditional ducted systems. They are well-suited for homes without existing ductwork, additions, or rooms that are difficult to heat/cool.
Mini-splits have an outdoor compressor/condenser and one or more indoor air-handling units connected by refrigerant lines. This allows you to control the temperature in specific rooms or zones, rather than heating/cooling the entire home. They are also more energy-efficient, quieter, and take up less space than central HVAC systems. However, mini-splits do have a higher upfront cost and may require professional installation.