TechNote 15 Radiant Floor Heating-Commercial  

Unlike conventional heating systems that warm spaces primarily through convection heating, radiant heating systems heat the floor which in turn radiates heat directly to occupants or objects. Radiant heating is especially beneficial in buildings containing large air volumes or with a high infiltration load, such as warehouses, air hangars, and other high bay facilities. Radiant floor systems provide heat by moving air or hot water through flexible tubing installed in the floor system. “Wet” systems are installed in concrete floors, while “dry” systems are installed under a finished floor system. Commercial applications typically use wet systems.