roof solar water heater,solar geyser water heater,

roof solar water heater Model NO.SBT -NPTank diameter420/460 mmInner Tank Materia & ThicknessImported SUS304 2B Stainless steel ; Outer tank Materia & thicknessGalvanized steel/stainless steel Bracket material & thicknessGalvanized steelHeat insulation layer Materia & thicknesslImported polyurethane foam 55mmSize of Vacuum Tube47×1500mm/58× 1800mmQty of Vacuum Tube16/18/20/24/30/36pcscapacity135,150,180,200,250,300Lwarranty3 years for whole system 1,solar water heater with CE,CCC and Iso certificate 2,special high quality Insulated material to reduce the heat loss 3,Excellent workmanship to guarantee the decent appearance,change for your request 4,Long life span and easy operation Non-pressure Solar water heater specifications: 1,Model NO.SBT-NP(Compelete set) 2,Capacity choice:135,150,180,200,250,300L 3,Working temperature:99 celsius degree 4,Working pressure :0.3Mpa 5,Cold resistance:-30 celsius degree 6,Tube hail resistance:<=25mm Tecnical date: 1,Inner tank:SUS304-2B food grade stainless steel ,0.31mm thickness 2,Outer tank:colorful armor plate,0.3mm 3,Frame:galvanized armor plate,1.45mm 4,Vaccum tube:D58mm,L1800mm or D47mm,L 1500mm 5,Temperature insulation layer:Imported polyurethane from Bayer Germany,50mm thickness can conserve the heatfor maximum 72 hours Non-pressure Solar water heater packing 1,Standard export packing for full container quantity 2,Special packing for sample orders Working priciple: The selective coating on the inner cover of the evacuated tubes converts solar energy into heat energy and water in evacuated tubes absorbs the heat .When the temperature rises with density drops,and weight goes down,hot water will go up to exchange with cold water in tank.In this way,the temperature of the water in tank goes up. Warranty:3 years Life span:15 years Payment:TT or LC Delivery time:15 days in general Trade term:FOB,CIF