Methodology
Our list of top AC and refrigeration instructors takes a look at HVACR specialists who have first-hand experience in the field, either through employment with a specific company, through contract work or a combination of both. Most of those on our list are also certified, often having North American Technician Excellence, EPA Section 608 or HVAC Excellence certification or certifications. They may also have done special work in air conditioning or refrigeration, taught classes in those fields or gained other experiences making their skills more niche and unique.