1.We use High Quality copper fins and tubes on the solar collector.
2.The product has More than 30 years working life.
3.German technology, European manufacture and quality. Extremely High Efficiency. 
4.ISO 9001:2000 Quality, CE, RoHS, Solar Keymark EN12975-2 & ISO 9806-2. Test results place our products amongst the best in the world in terms of performance. 
5.Pressurized Closed System. Input-output water is not used in the heating function thus remaining clean and preventing the formation of rust, scale or dirt inside usable water by the end user. Special thermal fluid is used in the solar collector thus preventing frost and allowing operation in extremely low or high temperatures: lower than 40 centigrade below zero.
6.Ti-Nano titanium micro technology coating in water storage tank. Prevents formation of rust, scale and dirt. More than 60 years Long lifetime of coating. Has obtained RoHS approval. 
7.No pump required. Natural circulation flow is accomplished in the system. 
8.Flat collector is hail,rain,storm,hurricane-proof. 
9.Prismatic glass used for higher efficiency of collector. 
10.Patented jacket design prevents thermal loss during night-time. 
11.Minimum maintenance. Only maintenance required is addition of thermal fluid, maximum once per one or two years. 
12.High quality materials, strict quality control. 
13.Phenomenal collector output of 700W per Sq.Meter. 
14.Good after-sales service. 
15.OEM and ODM provided. 
16.Easy to understand installation manual. 
17.Customized production on customer request. 
18.We are one of few factories that produce the whole product on our own.
Welcome to our websites teswin.com to get more data.