1983年3月,在美国德克萨斯州的福德沃尔士,建造了一所新型的被动式太阳房。这座太阳房的外墙采用钢筋水泥结构,墙内填满了固态的灰沙。它以聚异氰酯作绝熱材料。墙上装有可自动开启的软百页窗。太阳房的玻璃温室与南墙合为一体,温室内砌了一道水泥砖墙,墙上铺着薄石条,气流可从石条与石条的空隙间通过。由于气流通过的路径呈“Z”字状, In March 1983, a new type of passive solar house was built in Fort Worth, Texas, USA. The outer wall of this solar house is made of reinforced concrete and the walls are filled with solid ash. It uses polyisocyanate as insulation material. There is a soft louver on the wall that can be opened automatically. The glass house of the solar house is integrated with the south wall. A cement brick wall is built in the greenhouse. The walls are covered with thin stones and the air flow can pass through the gap between the stone and the stone. As the path through which the air flow passes is in a “Z” shape,