A program covering the CORE knowledge areas of HVACR and preparing a student to take the North American Technician Excellence (NATE) Core Certification Exam. The HVAC Service Core program is a comprehensive online HVACR education program encompassing heating, ventilation, air conditioning, and refrigeration. The NATE Core Certification provides the basics for entry-level and early career technicians and is a stepping stone to becoming a HVACR Certified Technician. The Core exam covers the foundational areas of safety, tools, basic construction, using basic science, achieving desired conditions, taking temperature and humidity measurements, and basic electrical. A voucher for this exam is included. The program is self-paced and can begin anytime.