Feature:
A. It is non-pressurized, safer and more dependable.
B. More enjoyable with tap water pressure.
C. The cold and hot water mix stably for balance of pressure.
D. Heat exchange is highly efficient with copper coil.
E. Heat is delivered efficiently by heat pipe.
F. The tank can be protected by antifreeze.
G. The water wouldn't polluted by former water
After the water of water tank is full ,Vacuum tubes absorb sun's energy. Heat energy is transfered inside water tank by using super heat pipe. Tap water inflow inside water tank through Internal coil , and at the same time absorbs the heat energy from solar hot water in heat storage tank and then turns hot. Test result, the temperature of output water is close to the temperature of solar hot water in water tank (Temperature difference
