At first glance, the cost of ductless heating and air conditioning can seem steep. However, the savings in energy efficiency will soon add up, making this a very attractive investment. The energy savings in ductless is far greater than traditional, central air conditioning / heating systems. In ductless systems, there are no ducts and therefore no energy loss in the ductwork. The average central forced air system experiences a 20% loss of the systemâs energy consumption in ductwork.