Bman
Well-known member
I'm getting ready to start studying for the October PE (HVAC) exam and looking at stocking up my reference books. A lot of people seem to recommend having Mark's Standard Handbook as a reference and I'm just wondering if it matters what edition you use? Looking on Amazon, you can get an older edition handbook for between $15-$35, but a new one will cost between $135-$200. I don't mind spending the money if its worth it, but don't want to if I don't need to. I appreciate any help that you all can give.