1,pressurized system ensure to provide srtrong water flow for shower

2,this type don't need any controller , circulation pump,expansion pump.feeder tank ,  it also can supplement cold water automatic

3,we use the advanced ring-argon arc welding .ensure the high quality .

4,thickness of inner tank : 1.2mm-2.0mm food grade SUS304 stainless steel

5,even there is a tube broken , the system can work in a good condition

6,this type is cheaper and easy install than the separated pressurized solar water heater