Meet the Air Doctor
Brynn Cooksey Sr., affectionately known as the “Air Doctor,” is a Detroit native and the Owner of HVAC U, LLC. Brynn earned that nickname for his renowned engineering solutions in the HVACR and Electrical industries. After spending 15 years in the Utility Gas and Power industry, Brynn took over his family’s heating and cooling business and rebranded it “Air Doctors” based on his industry-adopted nickname. The Air Doctors team has repeatedly reduced customers’ utility bills by 50% or more with Brynn’s award-winning Building Efficiency solutions.
Brynn studied HVACR technology at Henry Ford College in Dearborn, Michigan, where he later returned to become a Professor and taught the subjects he had learned about. To this day, Brynn continues to train individuals in the industry that he loves and has trained over 10,000 HVAC Technicians, Electricians, and Energy Auditors. Brynn also is a training consultant for mechanical contractors, HVACR supply distributors, and HVACR training organizations. Brynn is a regular technical contributor for the RSES Journal, BPA Journal, and the RSES Webinar series. Brynn holds several degrees and certifications in the HVACR and Building Science industries.
In 2024, Brynn was named one of ESCO Institute’s Top 25 Most Influential HVACR Instructors. The honor was given to instructors who significantly contributed to the HVACR industry.
In 2025, Brynn was awarded the designation of a Certified Master Trainer by the Interstate Renewable Energy Council (IREC).
Additionally, Brynn was named to the Air Conditioning Heating and Refrigeration News (ACHR News) Top 40 Under 40 Professionals list due to his contributions to the HVACR industry.
Brynn Cooksey is an Energy Contributor for Forbes, focusing on writing articles about energy efficiency, building science, and workforce development.
Podcasts
Awards
Top 40 Under 40 HVACR Professionals 2024
2024 Top 25 Most Influential HVACR Instructor/Trainer
Wayburn Wilson CMS Memorial Award
Top 40 Under 40
2025 Top 25 Most Influential Instructor/Trainer
Video
How Air Doctors Uses measureQuick Daily – Brynn Cooksy | 2026 HVACR Training Symposium – Part 2
From Handwritten Forms to Half-Percent Callbacks – Brynn Cooksey | 2026 HVACR Training Symposium – Part 1
What is an Energy Audit? | Ask a Contractor with Air Doctors Heating and Cooling
What Is a Heat Pump? | Preparing for a Heat Pump Retrofit | Ask a Contractor
What is the Building Performance Institute (BPI) and What Are Their Most Popular Certifications?
Brynn Cooksey on Building Science & MeasureQuick: How Home Performance Is Changing HVAC
2026 Top 25 Most Influential Instructors/Trainers
Understanding a Home’s Hidden Air Leaks: The Power of Blower Door Testing
What is Home Performance?
Navigating the Heat Pump Jungle Webinar
IAQ for the HVAC Tech with Brynn Cooksey
Major parts shortage hits heating and cooling industry as A/C units start kicking into high gear