... economizer, is used in boilers, marine power, heat exchanger components Definition:H fin tube, also know as ... fin economizer, H fin tube economizer, H type finned tube, square fin tube.It is a ... , marine power, such as the tail of heat exchanger components. Principle:H-economizer two rectangular fin, similar ... can also manufacture dual tube "double H" type fin tubes, its rigid structure, and can be ...