Peter MaysonTshisa Solar Boxes
The Tshisa Box is a real low cost alternative to conventional solar water heaters. It looks like a solar water suitcase. It is portable and great for camping, warm water at picnics and for rural or township homes without electricity. It retails for R200 to R250. In good sun it will heat 10 liters of water in 4 -5 hours while also using solar ultra-violet to disinfect the water. Just fill, place facing the sun on a sunny day and within a few hours you will have hot water.