schematic shown in fig6 the reservoir cooling duct 13 extends on both sides of the reservoir 12 at an angle 36 which is delimited on one side by side walls of the reservoir 12 and on the other side by the shell 31 which separates the cooling duct 13 from the storage compartment 2 a gap 35 between the reservoir 12 and the shell 31 is filled with insulating material in order to decouple the reservoir 12 thermally from the storage compartment 2 to a large extent the gap 35 could also be left empty however in order to act equally as the reservoir cooling duct 13 in order to intensify the heat exchange between the reservoir 12 and the air flowing in the cooling duct 13 the reservoir 12 can be provided with projecting cooling fins 37 as shown because of the arrangement of the reservoir 12 in one of the insulating walls of the refrigeration appliance housing between the cooled storage compartment 2 and the environment the reservoir 12 takes on a temperature which lies between that of the storage compartment 2 and that of the environment without the necessity for the cooling duct 13 to be impinged upon by cold air supplying the duct 13 with cold air is.