It comprises a longitudinal support (1) being provided with the fittings being characteristic of a shower, the solar collector (4) being made up by a black and flexible, tubular reservoir (5) being longitudinally fitted to said longitudinal support. It is characterised in that the solar collector (4) is fitted to the support (1) in such a way that it comes to rest at its lower end and has its upper end fitted in a shiftable assembly. Three half-clamps (16, 17 and 18) are laterally applied to the solar collector (4) and fitted to the support (1) at its two ends and in an intermediary region, at least part of said half-clamps being fitted in a removable assembly. The support (1) is formed by two halves namely being an upper one (12) and a lower one (14), said two halves being adapted to be fitted (15) to each other.