Liquid-cooled solar collector for generating heat with an outer transparent cover (1), in particular a glass pane, and an air gap (8) for the spatial separation of the below arranged absorber-heat exchanger combination (2), characterized in that the absorber heat exchanger combination ( 2) consists of an upper glass sheet (3), on the upper side or on the outwardly facing side, a heat radiation low-emitting coating is provided and on the underside of the heat exchanger is fixed with good thermal conductivity contact, the solar radiation prevail in the Substrate of the glass sheet (3), in a color coating (4) on the underside of the glass sheet (3) or below the glass sheet (3) is absorbed at the heat exchanger.
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