Thanks for your help so far great suggestions! As for my background, i am 24 years old this may, i have my grade 12, i am a licensed gas technician 2. I have been working with natural gas and propane for just over two years now. The company i work for now installs fireplaces, furnaces, and a/cs in the summer aswell as wood burning appliances. The reason im looking to get into refrigeration is because i have already experienced a little bit of the heating side and i would like to expand into the cooling part of it. Basically just another route to take and try and make a career out of it.