This paper presents experimental results for tracing optimal design parameters to enhance the heat transfer through wire mesh fin arrays equipped with horizontal base plate. The performance analysis has been carried out on the mild steel for different heat inputs varying wire mesh diameter, fin height and spacing between two fin arrays. Taguchi’s L9 orthogonal array is adopted for obtaining the optimal design parameters to improve the heat transfer coefficient. It is observed that the influence of wire mesh diameter and fin height on the heat transfer coefficient is high when compared to spacing between two fin arrays. These studies will be useful to industries to enhance heat transfer in the extended surface or with different geometries such as square, circular pin-fins, plate fins, perforated fins etc.