PROBLEM TO BE SOLVED: To provide an installation structure of a heat storage member, for allowing a heat storage member to effectively perform heat exchange.SOLUTION: This installation structure 10 of a heat storage member is such that the heat storage member 12 is supported by a support member 26 to float from the ground 100, and the heat storage member 12 is installed, leaving space between an inner wall surface 16 of a greenhouse 14 so as to form an air passage 32 connected from between the heat storage member 12 and the ground 100 to between the heat storage member 12 and the inner wall surface 16 of the greenhouse 14. When temperature is high in the daytime, the heat storage member 12 performs heat exchange with warm air rising by natural convection in the greenhouse inside, and performs heat exchange with warm air rising between the heat storage member 12 and the inner wall surface 16, passing the air passage 32. When the temperature is low in the nighttime, the heat storage member 12 performs heat exchange with cold air falling by natural convection in the greenhouse inside, and performs heat exchange with cold air falling in the greenhouse outside.【構成】 蓄熱部材の設置構造１０では、蓄熱部材１２を支持部材２６によって支持して地面１００から浮かせるとともに、蓄熱部材１２を温室１４の内壁面１６と間隔を隔てて設置することにより、蓄熱部材１２と地面１００との間から蓄熱部材１２と温室１４の内壁面１６との間へ繋がる空気通路３２が形成される。そして、昼間の高気温時には、蓄熱部材１２が、その室内側を自然対流によって上昇する暖気と熱交換を行うとともに、空気通路３２を通って蓄熱部材１２と内壁面１６との間を上昇する暖気と熱交換を行う。また、夜間の低気温時には、蓄熱部材１２が、その室内側を自然対流によって下降する冷気と熱交換を行うとともに、その室外側を下降する冷気と熱交換を行う。【効果】 蓄熱部材が効率良く熱交換を行うことができる。【選択図】図２
