Solar water heater and process of forming same

Claim 1

A SOLAR WATER HEATER, INCLUDING: (A) AN UPPER HEADER AND A LOWER HEADER THAT ARE PARALLEL AND IN VERTICAL ALIGNMENT, WITH SAID UPPER AND LOWER HEADERS EACH HAVING TWO SPACED PARALLEL FLANGES PROJECTING THEREFROM, WHICH FLANGES ARE SITUATED ON OPPOSITE SIDES OF A LONGITUDINALLY EXTENDING OPENING FORMED IN EACH OF SAID HEADERS, WITH SAID UPPER AND LOWER HEADERS BEING SO DISPOSED THAT SAID FLANGES EXTEND TOWARD ONE ANOTHER; (B) A PLURALITY OF TUBE SECTIONS OF SUBSTANTIALLY THE SAME LENGTH AND RECTANGULAR IN TRANSVERSE CROSS SECTION, WHICH SECTIONS ARE ADAPTED TO BE DISPOSED IN SIDE-BY-SIDE ABUTTING CONTACT TO PROVIDE A PANEL, SAID UPPER AND LOWER HEADERS BEING SUFFICIENTLY LARGE IN CROSS SECTION TO SUPPORT SAID TUBE SECTIONS IN SAID PANEL ABOVE A SURFACE ON WHICH SAID UPPER AND LOWER HEADERS REST; (C) MEANS FOR BONDING THE ABUTTING END PORTIONS OF SAID SECTIONS TOGETHER WITH A WATERLIGHT SEAL; (D) MEANS FOR BONDING THE END PORTIONS OF SAID SECTIONS, WHEN DISPOSED TO DEFINE TO SAID PANEL BETWEEN SAID FLANGES ON SAID UPPER AND LOWER HEADERS AND IN A WATER-TIGHT SEAL THEREWITH; (E) MEANS FOR CLOSING THE ENDS OF SAID HEADERS; (F) A TUBULAR WATER INLET; (G) MEANS FOR HOLDING SAID TUBULAR WATER INLET ON SAID LOWER HEADER AND IN COMMUNICATION WITH AN OPENING FORMED THEREIN; (H) A PLURALITY OF TUBULAR WATER OUTLETS; (I) MEANS FOR HOLDING SAID WATER OUTLETS ON SAID UPPER HEADER IN COMMUNICATION WITH A PLURALITY OF OPENINGS FORMED THEREIN; AND (J) A PLURALITY OF LONGITUDINALLY EXTENDING PARTITIONS IN SAID TUBE SECTIONS WHICH REINFORCE THE SAME AGAINST DEFORMATION AND COOPERATE THEREWITH TO DEFINE A PLURALITY OF CHANNELS THEREIN THROUGH WHICH WATER CAN FLOW.