When you choose a new air conditioning system, you'll find that you have two primary choices for your home. A standard central air conditioning unit relies on ducts, while a multi-zone ductless system is duct-free. While both types of air conditioning systems can keep your home cool, they have distinct advantages and disadvantages . Take a closer look at the pros and cons of each type of system. Central Systems Cool the Entire Home This traditional type of cooling system uses a network of ducts connected to a cooling unit in order to distribute the cool air throughout the home. Most central air units are designed to cool the whole home, which can be comfortable but inefficient. Homeowners who want to have greater control over cooling certain rooms or zones more than others can consider investing in zoning systems. These systems incorporate dampers in the ductwork and a series of zoned thermostats throughout the house. Since each thermostat is assigned to a specific group of rooms, ...