... collectors, heat gain higher. Able to absorb the heat from different angles, a variety of metals coatings, more stable ... most comfortable between 35 to 40 degrees Celsius, to avoid the cold and hot water because of the frostbite ... to aerodynamic design of the special support structure, super durable, anti-wind, anti-corrosion, can adapt relatively harsh climate.... Diamond Tianjiao Solar Water Heater ...