Vacuum Tube Project Solar Collector

Vacuum Tube Project Solar Collector. High Efficiency Heat Transfer: Heat pipe technology insulates inner tube from heat loss, delivering excellent heat output year-round. Durable Vacuum Tube Design: Transition heat-pipe tubes with 0.5mm copper inside, resistant to hail up to 25mm. Robust Pressure Resistance: Designed with pressure up to 0.8Mpa, suitable for courtyard, roof, or balcony installation. Easy Maintenance & Repair: No water in the pipe; if one tube breaks, the collector continues to function normally. Aesthetic Low Profile: Black tubes blend nicely with most roof colors, sitting close to the roof surface. Premium Material Construction: Outer board: Aluminum-alloy 2.0mm; Internal bladder: Stainless steel; Insulation: Mineral wool. Certified Quality Standards: Products certified with ISO and CE standards for safety and performance. Flexible Customization Options: Customizable tube sizes (58*1800), insulation, brand, and warranty up to 8 years.