The present invention relates to a fomentation machine and, more particularly, to a far-infrared ray fomentation machine with improved thermal storage efficiency, which not only protects each of components from an external impact, but also can sustain a heat insulation maintenance state compared to a conventional fomentation machine by installing each component through forming a thermal storage space unit and a control space unit inside vermiculite, which is a material for the fomentation machine, after compress-molding the vermiculite. The fomentation machine also can improve the health of a user by emitting far-infrared rays using generated heat. A far-infrared ray fomentation machine with improved thermal storage efficiency includes: a housing in which a top housing is combined with a bottom housing to form an installation space unit inside the housing； a thermal storage body installed in the installation space unit of the housing； a heater for heating the thermal storage body； an inlet for supplying external power to the heater； a bimetal for shutting off the power supply to the heater from the inlet when the thermal storage body heated by the heater is overheated； a lamp which is lighted when the power supply to the heater is shut off by the bimetal； an insulating material which is located in the installation space unit of the housing such that the thermal storage space unit for installing the thermal storage body and the control space unit for installing the bimetal and the inlet are formed therein； and a far-infrared ray unit installed in the housing to emit far-infrared rays by thermal storage of the insulating material. The insulating material is manufactured by compress-molding such that the thermal storage space unit and the control space unit are formed in the insulating material.본 발명은 축열효율이 향상된 원적외선 찜질기에 관한 것으로, 더욱 상세하게는 내부에 설치공간부가 형성되도록 상부하우징과 하부하우징이 결합되는 하우징, 하우징의 설치공간부에 구비되는 축열체, 축열체를 가열하기 위한 히터, 히터로 외부전원을 공급하기 위한 인렛, 히터에 의해 가열된 축열체가 과열될 경우, 인렛에서 히터로
