high efficiency conducting heat pipe

1 No water in tubes2 No scaliness in tubes3 Not frozen due to no water in tubes4 High exchange speed for super conducting copper pipe5 Not stop the whole system running for few tubes broken contingently6 No tube broken due to high temperature foe feeding cold water momentarily7 The heat isolation can protect the dust ring and silica ring8 The wood stop is able to prevent the heat loss9 The wood stop can release the pressure when the temperature is too high in vacuum tubes, prevent the tube to break10 The thermal capacity in water tank improved 10% higher than vacuum tube solar water heater
high efficiency conducting heat pipe