Beijing Hermann Wall-Hung Boiler Repair Center; What is heat conduction?
Heat conduction is the process by which heat is transferred from the high-temperature part to the low-temperature part when it occurs within the same body or when two objects of different temperatures come into contact. For example, after the outer wall of the boiler water pipe is heated by the flue gas, the heat is quickly conducted to the inner wall and then absorbed by the boiler water. The ability of various objects to conduct heat is not the same. Objects that are good at conducting heat are called thermal conductors, such as copper, aluminum, iron, and other metals; objects that are not good at conducting heat are called thermal insulators or thermal insulators, such as scale, air, asbestos, etc.
Article source: Beijing Hermann Wall-Hung Boiler Repair Center http://blog.tianya.cn/blogger/blog_main.asp?BlogID=3778681.