Pressurized solar thermal collector

Advantages - Highly efficient absorber of high performance with daily average efficiency over 50%; - Operation pressure of 6 bar Maximum 10Bar; can be connected directly with city water pipe. - No water inside the evacuated tubes; the solar water heater can still in service even with several tubes breakage; - Highly efficient insulation with polyurethane foam - Simple structure, easy to assembly and install, diffuse flat plate reflector can be assembled easily with its module structure; - Can be used all year round in the cold climate; - Can be used together with Auxiliary electric boost; - Automatically controlled; - Large-scale solar hot water system can be installed either with parallel or series connections.