The book "Calculated study of furnace devices" by Alexander Alexandrovich Shatil is a deep and comprehensive study devoted to one of the key topics in the field of heat engineering and energy. This edition will be of particular interest to those involved in the design, operation and optimization of heating systems, as well as students and graduate students studying relevant disciplines. In his book, Chatil immerses the reader in the world of complex calculations and engineering solutions necessary to create effective and safe furnace devices. The author not only shares his knowledge and experience, but also offers the reader a unique approach to calculations based on modern scientific methods and practical examples. The book covers a wide range of topics, including thermodynamics, heat transfer, combustion and environmental aspects, making it an indispensable tool for energy professionals. One of the key topics addressed in the book is the optimization of combustion and heat transfer processes in furnace devices. Chatil emphasizes the importance of choosing the right parameters for the operation of boilers and furnaces, which directly affects their efficiency and environmental friendliness. It details various calculation methods, including numerical models and experimental approaches, allowing the reader to gain a complete understanding of the process of designing and operating heating systems. The book will be useful not only to engineers and designers, but also to students of technical universities who seek to deepen their knowledge in the field of heat engineering. Chatil uses accessible language and comprehensible explanations, which makes the material easy to understand, even for those who are just starting their way in this area. In addition, the presence of practical examples and tasks allows readers to consolidate the knowledge gained and apply them in practice. Topics raised in the book are relevant and important in light of contemporary environmental challenges. In the context of global warming and the need to reduce carbon emissions, the optimization of the operation of heating devices becomes especially important. Chatil emphasizes that the correct calculation and design of heating systems can significantly reduce the negative impact on the environment, which makes his work especially valuable for professionals working in the field of sustainable development. The author's style is distinguished by clarity and logical presentation, which allows the reader to easily follow his thoughts and ideas. Chatil is an experienced specialist, and his authority in the field of heat engineering makes this book a reliable source of information. He is also the author of other well-known works on energy and heat engineering, which confirms his in-depth knowledge and practical experience in this field. If you are looking for a high-quality calculation manual in the field of furnace devices, which combines theory and practice, then the “Calculated study of furnace devices” will be an excellent choice. This book will not only enrich your knowledge, but also help you become more competent in your field. Readers interested in the topics of energy conservation, resource efficiency and environmental safety will find in it many useful ideas and solutions. In conclusion, “Calculated study of furnace devices” is not just a textbook, but a real find for everyone who seeks to understand and master the complex processes associated with the design and operation of furnace systems. The book Shatil will become your reliable assistant in the world of heat engineering, opening up new horizons and opportunities for professional growth.