
High Pressure Heat Pipe High Standard Solar Water Heater. High Efficiency Heat Pipe: Heat Pipe Plus Vacuum Tube structure ensures no water loss even if tube breaks. High Pressure Storage: Testing pressure up to 11 bar with normal working pressure of 7 bar. Leak-Proof Design: No sealing rubber required, eliminating potential leaking problems. Anti-Freeze Technology: Designed for easy plug-in installation with anti-freeze capabilities. Premium Tank Materials: Inner tank options include 304/316L Stainless steel or Porcelain enamel. Durable Insulation: Foaming polyurethane insulation layer with 55mm thickness for heat retention. Multiple Certifications: Certified with CE, ISO9001, and CCC standards for quality assurance. 8-Year Warranty: Comprehensive 8-year warranty coverage for peace of mind.