Abstract: A solar energy heating panel is provided for mounting in a building wall to effect heating of the air in an interior building space. A plurality of the heating panels are mounted in parallel relationship in a supporting structure for angular rotation about horizontal pivot axes to selected position. Each of the heating panels includes a heat-transfer controlling panel and a cellular unit mounted on one surface of the controlling panel, the opposite surface of the controlling panel being reflective of solar radiation. The cellular units are formed with mutually intersecting, longitudinally and transversely extending walls disposed in upstanding relationship to the controlling panel surface and which define a plurality of individual cells that are open at an end remote to the controlling panel surface. The longitudinally extending walls are disposed parallel to the axes of rotation and have a plurality of apertures formed therein to permit airflow transversely through each cell.

Abstract: A solar energy control apparatus is provided for use in conjunction with a water storage tank and performs the functions of converting solar radiation to heat energy and controlling transfer of heat relative to the water contained in the storage tank. The structure of this apparatus includes a structural frame that may be floated on the water, a plurality of metal plates carried by the frame for converting solar radiation and controlling of the heat transfer relative to the body of water and a cover of glass or plastic panels and thermally insulating-radiation reflecting walls. This cover includes a radiation transmissive panel and an opaque panel attached at one end to one another in longitudinally aligned relationship and supported on the frame in an inverted V along with closing sidewalls. The frame has projecting from it into the water below heat conductive metal plates which are coated on one side with a heat absorbing coating and on the other with a radiation reflective coating.