HEAT UTILIZER

The invention relates to power engineering. A heat utilizer has a body separated by hermetic partition to compartments for hot and cold media and beam of heat pipes going through compartments and fixed in partition. Compartment for cold medium is separated into two chambers with wall normal to partition between compartments for hot and cold media, in particular to chambers for preliminary heating and final heating of cold medium. First of those chambers is filled at whole height by heat pipes and the second is arranged with formation in the upper part of that chamber of vessel free from heat pipes. Those chambers are connected to each other by pipeline. The heat pipes in the compartment for hot medium or in the compartment for cold medium, or in both compartments, can be equipped with ribs. The heat utilizer provides enlargement of the field of its use and high economic showings of operation at high thermo-technical effectiveness and reliability.