Abstract
We conducted a subjective experiment in two experimental rooms. The rooms were a highly air-tight and insulated room, and a conventional energy saving room. In particular, we focused to the difference of heating floor panel between 60% and 30%. In addition, the difference between heating systems, the floor heating and the air-conditioner was also concerned. The recommended condition of air temperature and floor surface temperature for the highly and insulated room was shown comparing that for the previous type of room.