солнечный водонагреватель - не под давлением

Features: The non-pressurized system is based on the natural circulation-thermosiphon phenomenon. It's the most cost-effectiveness and environmentally friendly way to harness solar energy for hot water applications, which isunsurpassed by any other solar thermal products, for its most high efficiency, low cost, easy installation 1. The most reliable, cost saving, efficient hot water heating solution. 2. Superior heat preservation ensured by one-off molding polyurethane foam 3. Anticorrosion inner tank,low maintenance cost. 4. Simple structure, easy installation, labour cost saving. 5. Completely automatic operation with intelligent controller. Specifications: 1, Inside the water tank: SUS 304-2B(food-level stainless steel) 2, Uses fully-automatic seamless pulsed argon arc butt welding 3, Outside the water tank: SUS 304-2B(food-level stainless steel) 4, Frame: Stainless steel or Aluminum Alloy 5, Frame gradient : According to local latitude 6, Insulating layer: 50mm imported Insulating layer or 45mm or 55mm 7, Lowest temperature resistance: -30° 8, Color: Customer request 9. Logo: Customer request or MEIDA