FIELD: construction; prefabricated reinforced concrete. SUBSTANCE: steam is used as heat carrier. Plant shaft is hollow and furnished with steam supply and steam discharge pipes with couplings at their ends. Heating element is made in form of disk with holes conjugated with holes of steam supplying and steam discharging pipes. Disk hollow has partition for steam circulation. In loading zone plates are installed to protect the heating members - disks. EFFECT: higher efficiency and safety. 4 cl, 2 dwg
