İstek
Istek - Vacuum Tube Solar Energy Systems
Fromİstek
ISTEK Vacuum Tube Solar Energy System works with natural circulation as its working principle. Cold water supply is a float system. It is a highly efficient system thanks to selective surface vacuum tubes with high radiation absorption and vacuum environment.
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The hot water and cold water tanks used in the system are made of 304 quality Cr-Ni material and are insulated with monoblock polyurethane with high thermal insulation ability to prevent external influences. The outer casing of the tanks is made of painted sheet metal.