This product is made of pure oxygen-free copper using expanded tube and full brazing processes which can effectively reduce the heat transfer heat resistance, and using enhanced heat transfer fins which has high thermal efficiency. The surface is coated with high temperature refractory paint and solidified. There is no any pollution when production. The product life can reach for more than ten years. There are SUS304 sanitary stainless steel mufflers inside of the tube, which is environmental-friendly and can avoid noise at high water temperature. We can customize this type of series products from 16 kw to 40 kw according to customer needs.
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