Johnson Air-Rotation HVAC Systems, A brand of Arizon Companies.

Johnson Air-Rotation HVAC Systems, established in 1921, specializes in designing and manufacturing innovative HVAC solutions. Founder Nelson Johnson developed the Air-Rotation® concept in the 1950s, a patented approach initially tested in the 1940s using modified large floor furnaces for uniform heat distribution in open spaces. The concept leverages a ductless fan system to evenly circulate heat within large buildings, thereby eliminating temperature stratification and increasing energy efficiency. Continuous advancements by Johnson engineers have led to the development of axial fans and various high-efficiency models capable of heating, cooling, dehumidifying, or adding humidity, all with notable energy savings. The company employs over 200 professionals, including a robust team of structural, mechanical, and electrical engineers. With over 180,000 square feet of production facilities, Johnson Air-Rotation HVAC Systems serves a wide range of industrial applications.