... bursting. Moreover, water can go upward at anytime. 2) Use solar collector technology, it is sure to be anti-freezing in winter ... bursting. Moreover, water can go upward at anytime. 2) Use solar collector technology, it is sure to be anti-freezing in winter ... , 350L, 400L, 450L, 500L 5) Pressure: 6 bar China Domestic Split Pressurized Solar Hot Water Tanks