In recent years, R&D work has focused on radiant air-conditioning systems for realizing net Zero-Energy Buildings (nZEBs). In a previous report, we described the results of thermal environment settings about a cool spot installation in the radiation cooling/heating office through the subject examination of going-out action. In this paper, the effectiveness evaluation was carried out considering the number of time until thermal sensation is restored to a comfortable state after several fitness exercises.The feature of this research is that the selection of a cooler cool spot leads to extension of the number of time is shown.
