GROUND TEMPERATURE AIR CONDITIONING SYSTEM

PROBLEM TO BE SOLVED: To solve such problems as: with respect to a heating and cooling structure of a building using ground temperature (geothermy), in a conventional method of spreading cobble stones under the floor of the building and installing a concrete-pitched floor, when the temperature of a room increases relative to the temperature under the floor, the floor is adversely felt to be too much cold; the works of life lines such as water service, electricity wiring and sewage piping cannot be done under the floor since a so-called underfloor space is occupied with the cobble stones; and in a method of taking in geothermy as air heat using a pipe buried in the ground as another example, burying the pipe in the ground costs too much and molds and bacteria may be generated in the pipe.SOLUTION: The problems are solved by inducing natural heat conduction phenomena so as to conjugate-integrate an indoor space, an underfloor space and the ground by continuously constituting only the bottom portion with high thermal conductivity concrete in a mat foundation in a highly insulated building.