The calo thermal energy technology co. Ltd., in nakayama city, is a corporation specializing in the design and manufacture of gas wall hanger products. The product is certified by the european ce and sold to various regions such as europe and asia. The company produces the 18kw-38kw types of wall set-up products, which are classified in the form of gas emissions, which are mandatory exhausts, strong rows and trophies; it is differentiated by the internal structure of the product, which consists of a composite tube heat exchangeer, a strong drum burner, and a traditional european plate exchange. Energy conservation and the promotion of low-carbon lives have been our tireless goals. After continuous exploration and research, solar energy was used to supplement the gas wall hanger for heating and successful automation, and the technology was patented to become china's priority fully automated solar gas complementary wall hanger. In the city of nakayama, karoten thermal energy technology ltd. Is part of the guangdong cheungi electrical limited (gso) company. Guangdong cheungi electric co. Ltd. Is an integrated enterprise that specializes in the development and manufacture of gas-fired materials. It is one of the country's large-scale gas-heater parts, oem and odm production bases. It has an annual production capacity of 1 million water heaters, 3 million heat exchangers and 2 million burners.