As of 2015, heating, ventilation and air conditioning training courses typically have a fee, and the availability of free courses is not known. Those interested in HVAC training courses can find some online through Penn Foster Career School and The Indoor Environment and Energy Efficiency Association. Examples of courses include Refrigerant Handling, Light Commercial HVAC Design for Quality Installation and Residential HVAC Design for Quality Installation, notes ACCA.org.
HVAC training courses can be found online focusing on topics such as heat transfer systems, thermodynamics of refrigeration, hazardous materials and protective gear, HVAC fundamentals and electric motor theory. However, due to the hands-on nature of HVAC technology, some programs may require students to spend some time in the classroom, notes Study.com. Each state has its own requirements for certification and licenses for HVAC technicians, so students should check with their home state for more information regarding coursework and certification exams.
The ACCA offers courses leading to four different certificates as of 2015: residential HVAC design, light commercial HVAC design, instructor certification and refrigerant handling.
Penn Foster Career School offers an HVAC training program leading to an HVAC and Refrigeration Career Diploma. The courses can be completed in approximately five months and include an Environmental Protection Agency certification exam voucher and prep materials. Topics covered by Penn Foster Career School include air conditioning, heating, ventilation and refrigeration.