Effective August 1, 2017 you must have your own set of exam reference books for class and for your exam. Commercial Duct SystemThe Technical Training Institute’s curriculum for the NC Heating Group 3 Exam Prep Course has been developed to review the latest NC Code-based test questions, residential and light commercial load estimating and duct design questions utilizing the approved ACCA Design manuals. You'll spend half of the first class day on a comprehensive review of NC Business Exam questions from NC Contracting Law. (Note: you'll take the NC Technical and Business Exams on the same day). Your instructor, Michael J. Pratl, has over 30 years of field experience, is a mechanical contractor licensed by the state of North Carolina, South Carolina, Georgia, Tennessee and Florida, a Certified Building Analyst and an NCCER Certified Master Trainer. Prepare to succeed…take the two-day H-3 Exam Prep Course.