
Gravity Solar Hot Water Heater. High Efficiency Heat Pipe: Heat Pipe Plus Vacuum Tube structure ensures no water loss if a tube breaks. High Pressure Resistance: Inner tank withstands 11 bar test pressure with no sealing rubber needed. Leak-Proof Design: No sealing rubber required, eliminating potential leaking problems. Anti-Freeze Technology: Equipped with anti-freeze technical features for reliable performance. Easy Plug-in Installation: Simple plug-in installation process for quick setup. Premium Inner Tank: Available in 2.0mm Enamel or 1.2mm Stainless Steel for durability. Multiple Certifications: Product holds CE, ISO9001, and CCC certifications for quality assurance. Custom Tube Sizes: Offers customized tube sizes including 47*1500 and 58*1800 options.