In order to perform the computer simulation of the effect of heating technology on heat consumption, a program for the numerical computations of charge heating and heat exchange in the furnace chamber was developed within this study. The calculations of heat exchange in the furnace chamber were made using a zonal method. The internal space of the furnace was divided into 20 computational zones, in which isothermal surfaces and isothermal gas bodies were separated. The problem of radiation heat flow was solved using two versions of the brightness and configuration ratios method. In heat exchange calculations, heat transfer by means of convection was taken into account. The results of the computer simulation of the effect of heating intensity on heat exchange indicate clearly that the most energy-saving process is heating with "nearly" linear variation of charge surface temperature. The computation results show also that for each case of heating there is a specific charge surface temperature increase rate during the heating period. which assures the minimum heat consumption.