Heat exchanger for e.g. boiler, has two coils made from heat conducting material and having same coil distance, where mutual offset of coils amounts to half of coil distance, so that windings of coils radially overlap one another

摘要

The exchanger has two coils (20, 30), which are made from heat conducting material. The coils have same coil distance, where mutual offset of the coaxially arranged coils amounts to a half of the coil distance, so that the windings of the coils radially overlap one another. An axial coil distance and a diagonal gap between the coils are fixed by a spacer. A deflector plate divides volume bounded by the coils in to two partial volumes. Independent claims are also included for the following: (1) a method of operating a heat exchanger (2) a method of manufacturing a heat exchanger.