Johnstone University
Online HVACR Training Anytime
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Free
About
All your training needs in one place. Johnstone University (JU) provides HVACR professionals with convenient, on-demand training to keep technical skills current, stay compliant, maintain NATE certifications, keep up-to-date on industry trends, and advance their careers.
Learn Anywhere
Access training 24/7 from anywhere.
Expand Your Expertise
Explore courses covering:
HVAC Fundamentals
Commercial Refrigeration
Mini-Splits
Electrical Training
Indoor Air Quality
Safety & Compliance
Business & Soft Skills
Train Smarter
Self-paced online courses
Personalized learning recommendations
New content added regularly
Track your progress anywhere
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What's New in Johnstone University
1.0
August 31, 2026
