There is a need for compressed air in most industrial enterprises to drive many types of pneumatic equipment, such as pneumatic machines, pneumatic tools, pneumatic hammers, etc. One of the ways to reduce the consumption of compressed air by consumers is to increase its temperature when it is supplied to them. In an ideal case, the specific volume of air consumed changes in direct proportion to the change in its temperature. Considering the operation of various pneumatic tools, it is possible to point out the fact that they primarily depend on the air volume flow rate, and not on the mass flow rate. Thus, this method of reducing costs is quite relevant. Intensification of heat exchange plays a big role in technology. The use of developed heat exchange surfaces is one of the intensification measures. The paper defines the optimized design of the heat exchanger based on such a factor as the minimum length of the tubular system. The equations obtained according to the developed methodology allow us to analyze the influence of such studied parameters as the number of tubes of the first row and their lengths on the optimization function. The main effect is the number of tubes of the first row transverse to the flow of the coolant heated in the heat exchanger. The length of the tubular ribbed system across the flow plays a secondary role. The developed technique can be used when considering finding the optimal design of heat exchange equipment using ribbed heating surfaces.