Patent ID: 7431030

Claim:
A solar water-heating panel, comprising: a heat exchanger of molded synthetic material, having a plurality of passages configured to circulate a heat-exchanging fluid, the passages being defined by parallel longitudinal central projecting ribs provided on two molded identical synthetic material half-shells, each of the two half shells including one projecting edging rib of greater dimension than the central projecting ribs, the two half-shells being bonded or heat sealed together at their respective central ribs to define passages and at their edge ribs to define a sealed hollow edging frame full of confined air on the periphery of the heat exchanger, wherein the two half-shells also include two transverse projecting ribs of the same dimension as the longitudinal rib and defining on two sides of the exchanger, two collector channels in communication with the ends of the passages; and at least two attached conduits configured to provide an inlet and outlet for the heat-exchanging fluid, the conduits passing through the hollow edging frame while remaining sealed and emerging into the collector channels.