For unheated vs heated flue, everyone has different special concerns about it, and what we do is to maximize the product requirements of each customer, so the quality of our unheated vs heated flue has been well received by many customers and enjoyed a good reputation in many countries. JINCHEN ELECTRIC TRACING CO., LTD. unheated vs heated flue have characteristic design & practical performance & competitive price, for more information on the unheated vs heated flue, please feel free to contact us.