An isothermal jacketed continuous stirred tank reactor (CSTR) operating at 150 °C is shown in the figure below. The cold feed entering the system at 30 °C is preheated to a temperature T (T < 150 °C) using a heat exchanger HX₁. This preheated feed is further heated to 150 °C using the utility heater HX₂. The mass flow rate and heat capacity are same for all the process streams, and the overall heat transfer coefficient is independent of temperature. Which one of the following statements is the CORRECT action to take if it is desired to increase the value of T?