A recess (13), open to the exterior and containing a tap (40) for chilled water, is defined in a wall of a housing (1, 2) of a refrigeration device. The wall comprises an inner skin (9) delimiting an interior (3), an outer skin (12) and an insulating material filling (10) extending between the inner and the outer skin. A storage container (20) for water to be tapped from the tap (40) is arranged in an inner zone (18) of the recess (13). An insulating partition wall (17) inserted in the recess (13) separates the inner zone (18) of the recess (13) from an outer zone (19) accommodating the tap (40).