The fluid circulation line for heat exchange structure and method of fabricating such an assembly

The invention relates to a fluid circulation conduit (1) for heat transfer structure, comprising: - a flexible tube (2) bent to form a plurality of loops alternately on a first side (C1) and a second side (C2), and - at least one link (3, 4, 31) holding the flexible tube (2) bent, the link or links (3, 4, 31) allowing folding of the assembly line ( 1) upon itself to facilitate the storage, transport and laying of the pipe assembly. The invention also relates to a heating / refreshing hydraulic structure comprising such an assembly line, a ground collector including such a pipe assembly and a method of manufacturing such a pipe assembly.