pre-heated pressure solar water heater

Pre-heated pressure solar water heater One copper coil is installed inside the tank as the heat exchanger. When water flows into the copper coil, it absorbs the heat of the water in the tank via the copper coild.Therefore the water tank is just as heat storage tank. Characteristic Use the copper coil as the heat exchanger, according with international fashion trend, it is simple to install and use.It takes the advantage of the tap waters pressure, more pressure, more comfortable.It can produce hot water with constant temperature, it is safe and comfortable to use.The water can be heated rapidly, so it can produce the high quality hot water.The water come from the copper coil, so it is clean and drinkable. Specification Inner tank:SUS304 2B food grade stainless steel,0.41mm thicknessOuter tank: Color steel or stainless steelCopper coil: diameter 12mm,thickness 1mmHeat Preservation: Polyurethane 50-60mmCapacity:150L,160L,200L,250LSystem with the assistant tank as the feeling tool.Optional accessory: Electric heater and Controller