A method for manufacturing a heat exchange unit for exchanging heat between a working fluid and a heat transfer fluid by means of adsorption. The heat exchange unit comprises a tube hosting the heat transfer fluid and being surrounded by mass channel coils comprising a metallic spacer strip in physical contact with the tube for permitting heat conduction and a metal foil strip supported by the spacer strip, a width of the foil strip exceeding a width of the spacer strip in an axial direction of the tube. Additionally, a heat exchange system comprising a plurality of the heat exchange units is provided.