Variable Refrigerant Flow (VRF) and Ductless
Variable Refrigerant Flow (VRF) is a high efficiency
HVAC technology for cooling and heating.
The historic Stonewall Building, built circa 1925, is a 12-story building in downtown Birmingham, Alabama. The building went through an extensive renovation converting to office spaces and residential lofts. From an engineering standpoint, it was a challenge to provide heating and cooling on an existing building with limited ceiling space for ductwork.