The ICAVI Heat Recovery Steam Generator was developed to maximize the utilization of residual thermal energy contained in hot gases from industrial processes, converting thermal losses into efficient steam generation and/or useful thermal energy for thermal fluid applications, with or without power generation. Each unit is fully customized according to the specific characteristics of each application, including gas flow rate, temperature, gas composition, operating conditions, and plant requirements. With robust engineering, high thermal efficiency, and outstanding operational reliability, the ICAVI Heat Recovery Steam Generator ensures safe operation even under severe process conditions. Its performance directly contributes to increasing the overall plant energy efficiency and significantly reducing operational costs. ICAVI solutions are designed for a wide range of industrial applications, including process heat recovery, steam generation, cogeneration systems, and thermal integration for medium and large-scale industrial plants, maximizing overall energy efficiency.