One HVAC system may serve you better than the other, depending on your needs. As their name suggests, central air conditioners are suited for cooling a large part of your property. However, these systems require ductwork. If your home or business doesn't have enough space for air ducts or you only need a small part of your building cooled, a mini-split AC might be the better option. These HVAC systems can reduce your cooling costs by providing zoned cooling.