Developing yourself as a chiller technician is a great choice for securing your future. It is a hard side of the industry to get started in. This means as you continue to work your way in and learn others will have a difficult time catching up. There has been a thought in the industry that VRF would replace chillers. I do not believe this to be possible. It is my experience that VRF have pushed splits and RTU's out of their markets. VRF have not done that much to threaten the benefits of chillers. In fact VRF are now being designed and implemented as chiller systems. Becoming a chiller technician has never been more obtainable due to lack of completion with other techs. Learning about chillers has never been easier.