The project lasts 36 months and includes the formation of a SPIN consortium, consisting of the Applicant EMBER KAMIN d.o.o., the company TOMANI d.o.o., MICROPLET, a craft for tool making, plastic processing and metal processing, and the Faculty of Mechanical Engineering and Naval Architecture in Zagreb as an organization for research and knowledge dissemination. The consortium works with the aim of using modern technologies in the development of innovative fireplaces with variable stove geometry and multi-layer heating power level. The project consists of two phases, industrial research and experimental development, which will provide a thorough analysis and implementation of innovative technologies in the production of fireplaces. In addition, the project also includes a feasibility study activity.