A prefabricated, self-supporting, modular radiating panel with a sandwich structure
comprises a layer of plasterboard and a layer of heat-insulating material. The
plasterboard layer incorporates, internally, several continuous pipes which are
designed to form independent hydraulic circuits and the end portions of which emerge
all along a same edge of the panel. The independent hydraulic circuits are each
housed in adjacent modular zones of the panel, the zones being separable from one
another so as to provide panel parts of different sizes in a modular manner.