There are several key differences between mini-split systems and traditional central air conditioning systems. Ductwork: Mini-split systems do not require ductwork, while traditional systems do. This means that mini-split systems are more flexible in terms of installation, as they can be installed in homes or buildings that do not have existing ductwork. Zoning: Mini-split systems allow for zoning, or the ability to control the temperature in different areas of the home or building separately. This is not possible with traditional systems. Energy Efficiency: Mini-split systems are often more energy efficient than traditional systems, as there is no loss of energy through ductwork. Size: Mini-split systems are typically smaller in size than traditional systems, making them a better option for smaller homes or for rooms that are difficult to cool with a traditional system. Price: Mini-split systems can be more expensive than traditional systems, but this cost is usually recouped over time through energy savings.