Variable-refrigerant flow, or VRF, is working its way into mainstream HVAC. Although not there quite yet, VRF popularity is gaining amongst HVAC contracting companies like Smith Heating and Air Conditioning Inc. in Stockton, Calif.
“VRF systems require unique design criteria in order to maximize the performance and the efficiency of the systems,” said Matthew Smith, who boasts four years of experience with VRF technology as company president. “We have been studying and learning these systems for many years. I believe over the last couple of years — with the need for greater efficiency and operational savings — these types of systems are more acceptable, and we are in a much better position to design and sell them.”