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Non-Pressure Stainless Steel Solar Water Heater
Features:1) Inner and outer water tank are made of SUS304-2B food grade stainless steel plates,welded by argon arc. Water is pure and drinkable.2) Heat insulation of water tanks adopts polyurethane foam and the thickness is 55mm3) Silicon rings to connect and seal them4) The tubes and supports are adjustable. The life of the vacuum tubes is 5 years.5) Whole glass vacuum tubes adopt super hard borax and silica glass6) Absorption rate: =93%, thermal radiation rate: =6%7) It resists 25mm hail and the using life of the whole system can last for 15 years8) Temperature when exposed to sun without water: 250°C, 2.5 hours to boilingpoint if using single tube9) If you use electrical appliances, it will begin to work when the temperature ofthe water is below 60°C,and will switch off automatically when the temperaturereached 60°C.10) You have to test the water temperature before using, in order to avoid scaldingModel S-470-1500/47-18:Qty/20` FT: 56pcsQty/40` FT: 108pcsModel S-470-1500/47-20:Qty/20` FT: 48pcsQty/40` FT: 93pcsModel S-470-1500/47-24:Qty/20` FT: 47pcsQty/40` FT: 91pcsModel S-470-1500/47-30:Qty/20` FT: 34pcsQty/40` FT: 65pcs
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