The ductless system works well in homes that do not have ductwork. It can provide heating and cooling to sunrooms as well as home additions, garages or converted garages. Extremely Energy Efficient These units can help you save money on energy because they don't have to cool the entire house. They are more energy-efficient A ductless AC system is more effective than central AC since it only cools those rooms you use. You can also shut off the cooling in areas that are rarely used with a...