Compact heat-pipe solar water heater,with a heat exchanger of exchange the heat energy via the tank water for hot water using. Working pressure 6 bar,Vacuum tube and heat pipe vacuum tube can be optional,High efficient, stable performance, long lifet time service, easy installation, no need maintenance.
Pre-heat Pressure Solar Water Heater,The running water is circulating through a copper pipe coil in the Water Tank , which is used as a heat transfer device in the system. This system maintains the sanitation and running pressure of Hot Water by Water Supply.