Domestic Solar Water Heaters

All regular Solar Water Heaters based on natural flow (thermo-symhon) principle suffer from a typical deficiency that of mixing of cold & hot water. Unless cold water is fed into hot water tank, hot water cannot be remove hot water for use. Which means that as you remove hot water for use, cold water enters the hot water tank and mixing occurs. In our 'Day-Nite'thermo-syphon solar heater this problem of mixing of hot & cold water has been addressed and minimized to a very large extent by the use of buffered hot water tanks.