Design of industrial thermal process equipment complexes is a specialized engineering service supporting manufacturing and technological processes. The design covers development of furnaces, dryers, reactors, heat exchangers, and integrated thermal systems. Solutions are tailored to specific production technologies and process requirements. Projects consider temperature regimes, energy efficiency, and process stability. Special attention is given to safety systems, automation, and process control. Complex design also includes energy source selection and heat recovery optimization. These systems are widely used in metal processing, food industry, chemical production, and building materials manufacturing. Accurate engineering reduces operational risks and long-term costs. Such solutions form the foundation of reliable and efficient industrial production.