HVACR Industry Resources
Helpful links for HVACR technicians, contractors, instructors, and students. Find training, certification information, technical resources, and industry updates.
Technician certification, exam preparation, and continuing education information.
✔ Gillis Coach is a NATE-approved course provider.
HVACR training materials, certifications, EPA 608 testing, and instructor resources.
✔ Don Gillis was named one of ESCO’s Top 25 Most Influential HVAC Educators (2024).
Contractor resources, training, and HVAC system design standards (Manual J, S, and D).
Equipment performance certification, industry standards, and refrigerant transition resources.
Section 608 certification requirements, refrigerant recovery, and regulatory information.
Education, mentoring, networking, and opportunities for women in the HVACR industry.
Free technical articles, videos, podcasts, and calculators for the trade.
These links are provided as helpful resources. Listing an organization does not imply its endorsement of Gillis Coach.