Abstract: The device for collecting solar energy and transferring it to a reception body to be heated includes a plurality of parallel profiled elements and a closure mechanism. The profiled elements are spaced apart and superposed in order to form a curtain having an outer face suitable for being exposed to solar radiation and an inner face suitable for being located on the reception body side. The profiled elements have two reflecting faces and a shape such that when the inner face is vertical, the profiled elements slope downwardly from the inner face to the outer face. The profiled elements define a plurality of air channels directed upwards from the outer face to the inner face when the inner face is vertical. The profiled elements and the two reflecting faces thereof are formed of an insulating material so as not to conduct heat from the outer face to the inner face.