An arrangement and a method for heat transport and use in connection with subsea equipment

The invention relates to an arrangement (1) for heat transport used for thermally insulating, or cooling, one or several elements, comprising a casing (2) arranged to enclose a medium having heat-storing or cooling capacity, said casing having an internal space (3) for receiving said element or elements and said medium with the medium surrounding the element or elements. The arrangement comprises guiding means (5a, 5b) arranged in the internal space (3) of the casing so as to guide the medium in said internal space in such a manner that a circulation and mixing of the fluid will be generated essentially throughout said internal space under the action of occurring temperature differences in the medium, whereby the natural tendency for temperature stratification of the medium is counteracted or eliminated. The invention also relates to a corresponding method, the use of an inventive arrangement for protecting a subsea installation or a part thereof from cooling, and the use of an inventive arrangement for efficient cooling an electrical appliance.