... system 1.Certificates: CCC,ISO,CE,KEYMAEK 2.lifetime:15 years , guarantee:5 years compact non ... tank. Thermosiphon systems work on principal of difference between hot water and cold water. When water ... exchanger (red copper), electric heater (1.5kw, 2kw, 2.5kw, 3kw), assistant tank( 5L, 8L, 12L, 15L ... seaside area, such as East South Asia etc.2. Feeding water automatic: with special design, feeding ...