This book contains the successful experiment on the application of radiant cooling using natural air for ventilation under the hot and humid climate of Rajasthan was studied. To avoid condensation of moisture on the cooling panel, the temperature of water supplied to the panel was limited to dew point temperature. Experiments were conducted in an experimental cabin during the hot and dry period in the month of March 2016. Results confirmed the good potential for application of radiant cooling. However, the room was served by radiant panels with a total area of (6 ×4) square feet. A special configuration was devised to achieve thermal comfort for the area served by the panel. ###Key Features- Figures and Graphs for better understanding.