Crest Operations (Pty) Ltd
CREST Solar has developed and patented the SOLAWATER125NP, which relates to a solar water heater comprising of a thermally insulated water storage tank with which communicates a solar heating panel.
CREST Solar has collaborated with Nampak to design, test (in Nampak’s state of the art R&D) and produce cutting edge solar water heater technology.
The SOLAWATER125NP is a 100% locally manufactured thermally insulated water storage tank which , suitable for use in a solar water heater wherein the water storage tank has an inner tank that is made of a moulded polymer material, and an outer housing forming an outer skin that can also optionally be moulded from plastics material or galvanised material with a space between the outer surface of the inner tank and the inner surface of the outer housing and wherein the space is filled with heat insulating material.
Particular attention have been given to UV resisting properties; for spigots defining access passages to be formed integral with the inner tank during the manufacturing process by means of two spaced blow pins or locating pins at one end of the inner tank with two blow pins or locating pins at the other end of the inner tank with the spigots being positioned such that one may serve as a hot water outlet; one may serve as an optional cool water return; and one may serve as an overflow outlet; for external screw-threads to be moulded integral with selected spigots; and for the spigots to include enlarged zones that form spacers for defining a space between the inner tank and outer housing during assembly thereof as will be more fully apparent from what follows concerning the method of manufacture of the thermally insulated water storage tank.