📚 Best Books & Study Resources for HVAC Certifications

If you’re serious about moving up in HVAC—whether you’re prepping for NATE, becoming a better troubleshooter, or aiming to start your own company—these books and study tools are trusted by real techs, schools, and union programs.


🔧 GENERAL HVAC FUNDAMENTALS

📘 Modern Refrigeration and Air Conditioning

  • 🔹 Author: Althouse / Turnquist / Bracciano
  • 🔹 Why It’s Great: Considered the HVAC bible. Covers residential and commercial systems, wiring, psychrometrics, refrigerants, air distribution, and more.
  • 🔹 Best For: Beginners to advanced techs. Great reference forever.
  • 🔹 ISBN: 9781635638776

📘 Refrigeration and Air Conditioning Technology

  • 🔹 Authors: Whitman, Johnson, Tomczyk, Silberstein
  • 🔹 Why It’s Great: School-level textbook with deep theory and illustrations. Extremely thorough.
  • 🔹 Best For: Students, NATE prep, trade school study.
  • 🔹 ISBN: 9781337399128

🧪 EPA 608 CERTIFICATION (Core, I, II, III)

📘 ESCO Institute – EPA 608 Certification Exam Preparatory Manual

  • 🔹 Official study guide used by most HVAC schools.
  • 🔹 Includes Core, Type I, II, III + practice questions.
  • 🔹 Also available as a digital eBook on ESCOgroup.org
  • 🔹 ISBN: 9781930044295

🧠 Tip: You can also use free EPA practice tests at:

www.epatest.com or www.hvacpracticetests.com


🛠️ NATE CERTIFICATION (Core, AC, HP, Gas, More)

📘 RSES – Preparing for the NATE Exam: Air Conditioning & Heat Pump

  • 🔹 Why It’s Great: Simple layout, review questions, and aligned with NATE test structure.
  • 🔹 Comes in separate books for each specialty.
  • 🔹 Great for field techs who hate boring textbooks.
  • 🔹 ISBN: 9781930044394

📘 ESCO Institute – HVAC/R Technician Certification Exam Guide

  • 🔹 Includes both NATE and HVAC Excellence topics
  • 🔹 Practice exams and reference tables
  • 🔹 ISBN: 9781930044219

🎓 HVAC EXCELLENCE / ADVANCED THEORY

📘 HVAC Excellence – Master Specialist / Professional Technician Study Guides

  • 🔹 Specific books for AC, Gas Heat, Heat Pump, Electrical, etc.
  • 🔹 Includes real test question formats
  • 🔹 Ideal for techs with 2+ years experience
  • 🔹 Available via: www.escogroup.org

📘 Delmar’s Standard Textbook of Electricity (For Electrical Mastery)

  • 🔹 Great for controls and in-depth electrical theory
  • 🔹 Explains Ohm’s Law, ladder diagrams, motors, circuits
  • 🔹 ISBN: 9781337900349

🧊 COMMERCIAL REFRIGERATION

📘 Commercial Refrigeration for Air Conditioning Technicians

  • 🔹 Author: Dick Wirz
  • 🔹 Why It’s Great: Focused on walk-ins, reach-ins, ice machines, supermarket systems.
  • 🔹 Great for jumping from resi to commercial
  • 🔹 ISBN: 9781305506435

📘 Troubleshooting and Servicing Modern Air Conditioning and Refrigeration Systems

  • 🔹 Author: John Tomczyk
  • 🔹 Deep dive into troubleshooting real-world systems.
  • 🔹 ISBN: 9781305506435

⚡️ BUILDING AUTOMATION / CONTROLS

📘 Building Automation: Control Devices and Applications

  • 🔹 Author: Ingram
  • 🔹 Covers DDC systems, protocols, sensors, control strategies
  • 🔹 Great primer for BAS entry-level techs
  • 🔹 ISBN: 9780826912268

📘 Practical Controls: A Guide to Mechanical Systems

  • 🔹 Author: Larry Bush
  • 🔹 Excellent intro to logic, sequences, and BAS wiring
  • 🔹 ISBN: 9780881736531

💼 BUSINESS & LICENSING (CA C-20, Startup, Estimating)

📘 California HVAC Contractor License Exam Prep

  • 🔹 Publisher: Builders Book
  • 🔹 Covers CA C-20 license requirements, law, and business
  • 🔹 Updated for 2023/2024 license exams
  • 🔹 Available at: www.contractorresource.com

📘 HVAC Spells Wealth by Ron Smith

  • 🔹 Legendary book for techs looking to start or grow their own business
  • 🔹 Covers pricing, dispatch, customer service, branding
  • 🔹 ISBN: 9780976951106

🔗 Additional Resources & Websites

Resource NameWhat It OffersLink
ESCO GroupCerts, eBooks, and online proctoringescogroup.org
HVAC Know It AllTech blog, YouTube, tool reviewshvacknowitall.com
NATECertification info + test centersnatex.org
hvacrschool.comArticles, podcasts, manuals, tech guideshvacrschool.com
YouTube ChannelsWord of Advice TV, HVACR Videos, AC Service Tech, HVAC Shop Talk

📘 Want us to create study checklists or a full learning path for each cert?
Let us know and we’ll build out downloadable guides, flashcards, and quiz decks.