1 The way your foot is shaped puts too much pressure on your big toe joint. Because bunions can run in families, some experts believe that the inherited shape of the foot makes some people more likely to get them.  Your foot rolls inward too much when you walk. A moderate amount of inward roll, or pronation, is normal.
Step 3: Route 2: Earn a Certificate or Degree. Enroll in an HVAC certificate or associate's degree program at a community college, trade school or technical academy. The programs can take between six months and two years to complete.
All in all, the process of becoming an HVAC Technician will take years to complete. However, one can enjoy the benefits of easy employment and commanding a high rate of pay when they become a fully licensed HVAC specialist. The other method is through becoming an apprentice of a licensed HVAC Technician. 2  Though not as formal as a training course, this method allows a person to quickly get hold of the basics of HVAC services while also applying them in actual scenarios.