Trade schools or community colleges usually offer programs in which a person receives the training necessary to become an HVAC technician.  Another option lies with the United States Armed Forces who provide men and women with the proper training in exchange for military service.  Expect training to take between six months and two years, all depending on the level of education that a future HVAC technician wishes to reach.

Many union chapters also offer apprenticeship programs.  Expect courses that range from blueprint reading and design of heating and cooling systems to tool usage and safety precautions.  The combination of coursework is matched with hands-on education as an apprentice works under an experienced HVAC technician.  This on-the-job experience is the best teaching tool of all.

Apprentices or Level I technicians usually start out helping experienced HVAC technicians with routine tasks such as fetching tools, assisting with furnace cleanings, helping install cooling lines, and more.  As their training increases, they are handled harder jobs.  These more difficult tasks can range from independent furnace cleanings to installing heating ducts.

The first step on the rung to becoming a Master HVAC technician is to take the test to become a certified Level I HVAC technician.  Tests include a wide array of subject matter, including testing by the EPA to ensure that the technician is aware of possible environmental contaminants.  The Level I HVAC technician is then allowed to service small appliances.  He or she works under a supervisor and is not allowed to solve an issue without checking with the boss first.  Typically, a Level I HVAC technician has spent a few years working under an HVAC technician.

The next step up, Level II, permits the technician to handle high-pressure refrigerants.  A Level II HVAC technician has typically worked as a Level I technician for three to five years.  More leniency is given at this stage, allowing the technician to come up with his or her own solutions to problems.  While still working under a supervisor, the freedom to work independently can increase job satisfaction.

The Level III HVAC technician has the most freedom.  A Level III technician has completed all the exams by the EPA and can handle low-level refrigerants, as well.  A Level III technician is allowed to design and install heating and cooling systems.  The Level III HVAC technician is the highest of the positions and offers the greatest pay scale.