The 16 Tube Kwikot Solar Tube Collector is the most affordable High Pressure solution.
The existing geyser is used as the storage tank, and water is circulated through a Vacuum Tube Heat Pipe Collector during the day.
The circulation is managed by the Geyserwise Max control system, which measures the difference in temperature between geyser and collector, and only circulates when the collector is 7 degrees hotter. The Geyserwise Max also manages the element to make sure it is used only when absolutely necessary.
The pump is 12V DC pump, powered from a battery which is charged by a Solar Panel to ensure the working of the system independent of Eskom.
A 150 litre System will provide a family of 2-3 Adults with enough hot water