Solar water heating is the conversion of sunlight into renewable energy for water heating, using a solar thermal collector. This system comprises of various technologies and acts as a solar geyser.
Smart Energy SA specialises in the “close-coupled” heating system, where a storage tank is horizontally mounted immediately above the solar collectors on the roof. No pumping is required as the hot water naturally rises into the tank through thermosiphon flow. In a “pump-circulated” system the storage tank is ground or floor mounted and is below the level of the collectors; a circulating pump moves water or heat transfer fluid between the tank and the collectors.