This is a pressure system that the storage cylinder and heat pipes are closed mechanically. Although there are some evacuated tubes broken the solar water heater can still work normally.

  

This system of solar water heater is a close-coupled system. It uses high quality stainless steel for the storage cylinder and brackets with shinning appearance...

  

This series use strong aluminum alloy for brackets and carbon steel painted for outer tank. It has good anti-corrosion performance for seaside area...

  

This series is with a copper heat exchanger inside the storage cylinder, which can be connected with other boosting system such as electric water heater, gas boiler, etc...