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The current article discusses the effect of a small heating strip placed inside the porous medium enclosed in a square cavity. The left vertical surface is maintained at hot temperature and right vertical surface remains at cold temperature that allows the heat to be dissipated outside the system. The other two surfaces of the cavity are maintained adiabatic. A comparison is drawn between the present work and the work where the left vertical wall is maintained at cold temperature. The different parameters such as length of the heating strip inside the domain, Rayleigh number and Radiation parameters are discussed with respect to the square porous domain.