This book is for engineers, contractors, project managers, and HVAC enthusiasts who want to go beyond the ordinary. It’s for those who have ever stood on-site staring at a system that “meets spec” but still doesn’t work quite right—or wondered why the energy bills stay high even after a system upgrade. It’s for those who suspect that something’s missing from the textbooks.
What follows isn’t theory—it’s the field-tested know-how that separates good designs from great ones. You’ll learn the clever tricks, subtle adjustments, and decision-making frameworks that senior engineers use to solve the problems others miss. From airflow mysteries to chiller sequencing, from psychrometric subtleties to real-world control logic, these are the lessons that make the difference.
Whether you’re designing your first commercial system or auditing your fiftieth high-rise, this guide will uncover the insights that rarely get discussed—but always make an impact.
Welcome to the side of HVAC design they don’t teach in school.
Charles Nehme is a seasoned HVAC and MEP engineering consultant with over 30 years of global experience spanning commercial, industrial, pharmaceutical, and cleanroom projects. Based in Spain and working worldwide, Charles is known for his deep expertise in system design, energy efficiency, technical diagnostics, and sustainable building solutions. His consultancy, CFN-HVAC, offers remote and onsite engineering services, technical writing, and marketing support for companies across the building services sector. https://bit.ly/m/HVAC