A ceiling radiator (01) for heating or cooling rooms (14), the ceiling radiator (01) having at least one flow tube (03) for transport of a heating or cooling medium and having several radiant panels (04) connected in a heat-conducting manner to the at least one flow tube (03). The ceiling radiator (01) may have a star-shaped cross-sectional shape with five or more star tips (02), wherein at least two converging radiant panels (04) form a star tip (02) and at least one flow tube (03) is disposed in the center (M) of the star-shaped cross-sectional shape.

A heat-conducting plate for fixing a pipe section to a holding surface of a heat exchanger, wherein the heat-conducting plate has perforations, in particular for acoustic reasons, wherein the perforations are not distributed uniformly over the entire surface of the heat-conducting plate.