LG Electronics' air conditioning department designs and sells HVAC equipments with VRF (Variable Refrigerant Flow) technology. LG VRF technology was introduced as a system to minimize effciency losses and to mimnimize or use no ductwork as a saving, save on the cost of large distribution fans, multiple water pumps operation and water piping. Energy efficient and easy to design, install, and maintain, a VRF system has the lowest life cycle cost of any system on the market today