1.copper pipe heating solar collector 2.New green technology 3 ... competitive.Product Applications 1) Domestic, industrial and commercial heating use 2) Suitable for open or closed Loop ( ... glycol-water) 3) Space heating 4) Caravan Parks, Hotels, Schools, Public Showers/Kitchens, ... 5) For large scale water heating1.Use heat pipe collector to supply hot water. This product can ...