The answer to 'difference between ductless system and' is that ductless systems, also known as mini-split systems, are a type of HVAC technology that does not require the installation of ductwork throughout a home. Instead, they use individual indoor air-handling units connected to an outdoor compressor/condenser unit, allowing for more flexible and targeted climate control. Ductless systems are often more energy-efficient and can be a good option for homes without existing ductwork or where adding ductwork would be difficult or costly.
In contrast, traditional central HVAC systems use a network of ducts to distribute heated or cooled air throughout a home. These systems require the installation of ductwork, which can be a significant investment, but they can provide more even and consistent temperature control across a larger space.