1) Working principle of high pressure solar heater: utilizes the alternative

    absorption coating on the inner surface of the vacuum tube, from the

    high-temperature environment super-conduction tubes, leads the heat

    to the water tank, and produces hot water

2) Easy to use, also convenient to install

3) Can be put in the courtyard or on the flat-roofed

4) Inlet water hole connects to the tap water, and the outlet hole connects

    to the tap water, and the outlet hole produces pressure hot water directly

5) Working principle of low pressure solar heater: adopts the alternative

    absorption coating to absorb the solar energy, heat the water in the

    vacuum tube directly, through the cold hot water convection, changes the

    solar energy into heat energy to store in the water tank:

    a) Adopts the double-deck highly special hard glass tube of boron silicon

    b) Double-deck glass coaxial structure, intermediate layer releases the

        vacuum, maintains 5 x 10-2Pa high vacuum for a long time while in

        charge

    c) Magnetism accuse of alternative absorption coating, AL / N / AL of

        sputter aluminum nitrogen aluminum alternative absorption coating

        solar radiation absorption rate ≥93%, and hot emittance ≤6%

    d) Long performance life: 15 years

    e) Endures climate feature: thermal efficiency is good in the whole year