Description

With high quality vacuum tubes as solar collector, absorption percentage *****4%; Tubes size: diameter *7mm and length ***0mm; Very easy to install on the roof. Water tank housing is made of stainless steel, looks more beautiful and substantial; Inner water tank is made of food grade stainless steel **4, welded by argon arc. Water is clean and drinkable. The copper coil in water tank make the heating transfer more effective and pressurized. Working pressure: 0.6MPa. Warm keeper of water tanks are polyurethane frothed, thickness is ****0mm. There is pressure in the copper coil, but not in the water tank. High quality stainless steel **2 (or aluminum alloy) bracket are windproof, firm and stable, easy to install. Tube quantity is optional, from *4 tubes to *6 tubes.