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.
The amount of time it takes to become a qualified HVAC/R technician depends on the education and training path you select. With informal training, the amount of time depends on the ability of the trainee to grasp new tasks and improve his or her skills.here are a number of education routes that can be pursued in order to become a qualified HVAC/R technician. In addition to formal education and training, it is also possible to become an HVAC/R technician through informal training.