This book deals with every aspect of fuels, furnaces and refractories in detail, in a single volume. The main aim behind presentation of this book has been to assimilate the scattered information on the interrelated topics in one volume for the benefit of students and practising engineers. This book begins with the basics which are the tools for efficient fuel utilisation along with the advanced treatment and latest practices in the field to give more broader coverage of the subject matter. The text matter has been presented with lots of self-explanatory illustrations, flow charts and solved examples for the better understanding of different topics. The text contains eighty chapters, which are classified into following sections.