This is all nice if someone could make this tube design cheaply. Most DIY people would not have these laying around usually and they probably would not be available at a home-improvement store either. They also would be a relatively high value as compared to using soda cans, still in either case the result is free/cheap heat from the Sun. Backup heating systems are still needed in a dwelling. Some of the std. heating fuel you save in reserve, by using a solar air heater to conserve fuel, can be utilized later when needed. Don’t forget the possibilities of solar water heating, solar water heating to heated air conversion, and solar electricity.
Established in year 2009,Bossen specializes in various kinds of steel pipes and steel concerned building materials. With an experienced, dynamic and high efficient team, our products are well-received worldwide.
We have our own factory–Tianjin Youyong Steel Pipe Co.,Ltd,which is a specialized enterprise for manufacturing longitudinal ERW steel pipe and galvanized steel pipe. The factory invests RMB150,000,000 yuan in total, covers an area of 110,000 square meters and owns more than 500 employees at present, including more than 50 main managerial personnel and production technical personnel.
Our factory now has 8 longitudinal ERW steel pipe production lines and 5 galvanizing production lines and it is capable of producing 300,000 metric tons of longitudinal ERW steel pipe a year and 200,000 metric tons of galvanized steel pipe a year.
Our factory has advanced pipe manufacturing production line, perfect inspection equipment and strictly specified quality assurance system. The company has obtained Certificate of ISO9001:2000 International Quality System and BV Certificate, etc.