Master's thesis is devoted to the technical re-equipment of the methodical heating furnace of the TPTs №1 of PJSC "Chelyabinsk Tube Rolling Plant". In the course of the work, the analysis of the thermal work of the methodical heating furnace was made. The drawbacks of the heat operation of the furnace are analyzed, measures are proposed to improve the thermal performance of its operation. A project of technical re-equipment, aimed at improving the operation of the furnace, which will improve the quality of metal heating, along with saving energy resources and increasing productivity, has been proposed. To evaluate the results, the heating of the metal was calculated and the heat balance of the furnace was drawn up after modernization, computer simulation of the gas-dynamic regime in the furnace working space was performed in the ANSYS package. The results of the calculation of the heat and gas-dynamic work of the heating furnace obtained as a result of the writing, as well as the results of the distribution of temperature and gas-dynamic flows showed that at a given furnace output, the billets are heated uniformly and reach the set temperature required for further processing.