Abstract: Different types of models are available for purpose of system simulation, modification, optimization and control. The one-dimensional model employed in simulating a non-ferrous melting furnace is presented. The model consists of a governing equation for the combustion chamber and a transient heat conduction equation for the walls and roof. Each furnace component is treated as a one-dimensional conduction medium and the governing equations are solved numerically. The model was tested for the case of melting 3 kg of aluminium charge in a furnace designed for melting non-ferrous metals. From the output of the program, the maximum temperatures obtained at the end of melting for walls and roof, in-furnace average gas temperature (avtg) and stack or exhaust gas were compiled and compared with experimental values. Higher temperature values were obtained when compared with experimental values. The wall temperature simulations are observed to be closely coupled an indication of a uniform temperature distribution within the furnace which was also reflected in the heat flux for the surfaces. The simulations are adjudged comparable with experimental data and the model is thus capable of predicting the key independent variables.