Heat Pipe Tube1.copper heat pipe2.3-target vacuum tube3.aluminum sheets in4.pressurized solar collector usÿDescription of Goods:1. Materials: copper heat pipe, aluminum sheet, threee-target vacuum tube and the plastic plug.2. Working Principle: three-target vacuum tube absorbs the solar energy then transfering the heat to the copper heat pipe inside of the tube; through the mediaÿliquid running in the copper heat pipe contact the heat energy to the cold water heater.3. While matching with solar manifold, copper heat pipe could still using once the vacuum tube occasionally breaks