Just recently got into the HVAC due to a new job i took in Oklahoma city, they asked me if i would take the course and get my EPA certification and of course i said yes anything to boost my resume. I have been a licenses boiler operator in MN for the past 8 years, at 25 i was the youngest Cheif A in the state and possibly still the youngest. Now that i have my epa certification i have been working on small refrigeration units like pop machines and refrigerators. Most of the large stuff i've delt with mainly has dirty condensor issues. last week i did a complete change out of a compressor and condensor unit in a refrigerator drawer in my works cafateria. I think it went awesome got my refrigerant all recovered and everything wired up. Its been working great ever since. pretty proud of myself.