Solarwarmwasserbereiter

Product model: WF-CF-420-47*1500-15(16,18,20,24,30)tubes WF-CF-470-47*1500-18(20,24,30)tubes WF-CF-470-58*1800-16(18,20.24,30,36)tubes non-pressure solar water heater Technial details: 1) Inner tank and outer tank are all make out of SUS304 food grade, adopt advanced wilding equipment and technics. 2) Vacuum tube:QB-AL-N/AL-47-1500/58-1800 3) Insulation layer of water tanks adopts polyurethane foam , thickness 55mm. 4) Frame: stainless steel , thickness 1.2mm 5) Reflector: bright light aluminum. 9.If you use electrical appliances to aid heating, to switch off the power supple before bathing. 10.To test the water temperature before using, in order to avoid scalding. by the way, the assistant tank and electric heating are spare parts.