solar thermal collector
rectangular or cylindrical in shape dark-colored, usually black or blue made of metal or plastic often has a glossy finish may have insulation material on the back may have glass or plastic covering the surface may have several small tubes or pipes connected to it
solar thermal collector which has rectangular or cylindrical in shape solar thermal collector which has dark-colored, usually black or blue solar thermal collector which has made of metal or plastic solar thermal collector which often has a glossy finish solar thermal collector which may have insulation material on the back solar thermal collector which may have glass or plastic covering the surface solar thermal collector which may have several small tubes or pipes connected to it