Stop Guessing: HVAC Airflow Made Simple
Understand Airflow. Measure It Correctly. Diagnose Problems with Confidence.
By Roberto M. Morales
A practical field guide that helps HVAC technicians understand airflow, measure system performance correctly, diagnose restrictions, and solve comfort problems with confidence.
360° showcase + interior tour
Full rotation of the printed edition followed by a walk-through of real interior pages.
Written by Roberto M. Morales
20+ years of real HVAC field experience
Step-by-step HVAC diagnostic system
Covers airflow, refrigerant, electrical & compressor
Practical field guide for HVAC technicians
Real field experience, not recycled theory
Airflow is one of the most misunderstood areas of HVAC diagnostics. Many technicians check refrigerant pressures or replace parts before confirming whether the system is moving the correct amount of air. This book turns airflow into a clear, practical, step-by-step diagnostic process built on more than 20 years of hands-on HVAC field experience — helping technicians understand what the measurements mean, identify restrictions, and determine the real cause of poor system performance.
Skills you take away
Every item below is covered directly in the book.
Understand HVAC airflow fundamentals
Measure static pressure correctly
Identify airflow restrictions
Evaluate blower performance
Diagnose weak airflow
Understand supply and return problems
Recognize dirty filters, coils, and blocked ducts
Connect airflow problems to comfort and efficiency issues
Avoid common airflow diagnostic mistakes
Use a repeatable field-testing process
Who this book is for
- HVAC technicians
- HVAC apprentices
- Trade-school students
- Service managers
- HVAC business owners
- Maintenance technicians
- Technicians who want stronger airflow diagnostic skills
- Anyone who wants to stop guessing and diagnose airflow correctly
3D book gallery
Photorealistic studio shots of the printed edition — front cover, 3/4 front, 3/4 back, side profile and top-down. Click any view to enlarge.
Foundation → Advanced Volume 1 → Advanced Volume 2
Three books, one progression. Start with the fundamentals, move into advanced field measurements, then finish with complete-system troubleshooting.
Look inside the book
Look Inside the New Expanded Edition
Explore selected pages from the newly expanded and KDP-approved edition. See the professional diagrams, field measurements, static-pressure procedures, diagnostic workflows, real-world examples, and step-by-step explanations that make HVAC airflow easier to understand and troubleshoot.
See real pages from the actual published edition before you buy.
Actual interior pages from the currently published edition.
Built from the field, written for the field
Every chapter is shaped by real service calls — not classroom theory.
20+ years of real field experience
Written by a working HVAC company owner in Miami — not a lecturer.
Designed from actual service calls
Every diagnostic pattern comes from real jobs on real equipment.
For technicians, apprentices, and beginners
Structured to meet you where you are and take you further.
Practical knowledge you can apply immediately
Clear language, real numbers, and steps you can use on the next call.
Part of a complete learning system
One consistent method used across the full HVAC catalog.
Written for lasting career value
Skills that hold up whether you're new to the trade or building a business.
Reader reviews will appear here once the first approved review is published.
Roberto M. Morales
Roberto M. Morales is the owner of an HVAC company in Miami and an author with more than 20 years of hands-on experience in the field. His work focuses on turning real service-call knowledge into clear, structured systems that technicians can actually use — on the roof, in the attic, and at the electrical panel.
This book is part of a growing catalog spanning HVAC professional and beginner titles, homeowner guides, romance, artificial intelligence, children's books, and Spanish editions.
Explore the full libraryChoose your edition
Every edition is sold and shipped directly through Amazon.
Frequently asked questions
Why Thousands of HVAC Technicians Choose Roberto M. Morales Books
Written by an HVAC contractor with decades of real field experience, where every lesson comes from diagnosing and solving actual HVAC service problems—not just classroom theory.
Every procedure, illustration, diagnostic method, and explanation is based on practical field work and written so technicians can immediately apply what they learn on their next service call.
Plain English
Complex HVAC concepts explained in simple, clear language — HVAC training books that apprentices and experienced technicians can understand quickly.
Built From Real Field Experience
Every troubleshooting method comes from actual service work, helping readers diagnose HVAC problems faster and with greater confidence.
Step-by-Step Procedures
No unnecessary theory. Every chapter reads like an HVAC technician field guide, focused on practical procedures you can follow on the job.
Professional Figures & Diagrams
Hundreds of carefully designed illustrations, measurements, diagnostic charts, and visual examples make learning faster and easier.
Designed for the Service Truck
Practical HVAC reference books technicians can keep nearby and consult whenever they encounter a difficult system.
Continuously Improved
Every new edition incorporates reader feedback, new field experience, and additional explanations so each book becomes even more valuable over time.
Thousands of pages of practical HVAC instruction across multiple professional books, designed to help technicians diagnose problems faster, understand systems more clearly, and build confidence on every service call.
“Our goal is simple: Help technicians solve HVAC problems faster, understand systems more clearly, and become more confident on every service call.”
Don’t just buy another HVAC book. Invest in a practical HVAC field reference you’ll use for years on real service calls.
Explore the complete Roberto M. Morales HVAC collection below.
Ready when you are
Diagnose faster. Stop guessing.
Get Stop Guessing: HVAC Airflow Made Simple on Amazon in Kindle, Paperback, or Hardcover.
Available in Kindle eBook · Paperback · Hardcover
Related HVAC books
More HVAC diagnostic books in this series
The Complete HVAC Troubleshooting System
A complete diagnostic system built on 20+ years of hands-on HVAC experience — engineered to help technicians diagnose faster, stop guessing, and fix it right the first time.
View The Complete HVAC Troubleshooting System AvailableStop Guessing: HVAC Airflow Made Simple — Advanced Airflow Diagnostics — Volume 1
Move beyond basic airflow. Learn how to measure, interpret, and connect the operating numbers that reveal what the complete HVAC system is doing.
View Stop Guessing: HVAC Airflow Made Simple — Advanced Airflow Diagnostics — Volume 1 AvailableStop Guessing: HVAC Airflow Made Simple — Advanced Airflow Diagnostics — Volume 2
Transform measurements into reliable diagnostic decisions. Follow complete-system evidence, identify the true root cause, and verify every repair.
View Stop Guessing: HVAC Airflow Made Simple — Advanced Airflow Diagnostics — Volume 2Continue your HVAC airflow training
Build the rest of your diagnostic system with the companion field guides in the Stop Guessing series.
The Complete HVAC Troubleshooting System
A complete diagnostic system built on 20+ years of hands-on HVAC experience — engineered to help technicians diagnose faster, stop guessing, and fix it right the first time.
Next bookStop Guessing: HVAC Airflow Made Simple — Advanced Airflow Diagnostics — Volume 1
Move beyond basic airflow. Learn how to measure, interpret, and connect the operating numbers that reveal what the complete HVAC system is doing.