To obtain the transfer function for a dual tank heating system, the focus is on maintaining the liquid temperature in the outer tank (A) at 40°C, while the inner tank (B) is heated to 45°C. The system consists of an inner tank with a heating coil and an outer tank, where the water level in tank B remains constant with no inflow or outflow. The user has already established a relationship for the transfer function but seeks further guidance on refining it for controller analysis. Key considerations include the thermal dynamics between the tanks and ensuring accurate modeling of the heating process. Clear steps and methodologies for deriving the transfer function are essential for effective control system design.