Which type of HVAC system uses ductwork to distribute conditioned air?

The central air conditioning system utilizes ductwork to distribute conditioned air throughout a building. This system typically consists of a central unit that cools or heats air, which is then distributed via ducts to different rooms or areas. The use of ductwork allows for an even temperature control and efficient cooling or heating across larger spaces compared to units that operate independently in single rooms.

In contrast, window air conditioning units and portable air conditioning systems operate without ductwork. They are designed to cool specific areas or rooms, making them less suited for comprehensive climate control in larger spaces. Geothermal heating systems, while effective in heating and cooling, primarily use a different mechanism involving ground loops and do not necessarily rely on ductwork for air distribution, as they can also function with radiant heating or other systems. This understanding highlights the distinct role of ductwork in central air conditioning systems for effective climate control.