This comprehensive guide to HVAC design and project management covers all critical aspects of the field, from foundational principles to advanced applications. It introduces the use of rules of thumb in HVAC design, outlines key steps in briefing procedures, and provides a clear framework for addressing design challenges. Readers will learn best practices for managing projects and supervising HVAC installations, as well as how to calculate load components and select appropriate systems and equipment. The book includes practical examples, design principles for air and water distribution systems, and planning considerations for plant space. It also features checklists for design specifications, installation, and commissioning, an overview of international HVAC standards, and a discussion on the role of software tools in modern HVAC management. This text serves as an essential reference for both newcomers and seasoned professionals in the HVAC industry.