| The water of the heat preservation water tank is just decalescence, heat accumulation and thermolysis the water of the water tnk is invariablenes.The vacuum tube collector absorbs the heat energy to heat the water in heat storage tank, when using the hot water, the cold water nflows through the inlet, the copper coil absorbs the heat then transfers into the cold water, so that the temperature rise up ceaseless, for the original features of the copper coil, the water temperature of the outlet is close to the water temperature of the wate tank(¡Ü3 degree).So the high pressure the cold water into the copper coil and absorbs the temperature, at last the water can be used. |