HVAC-Engineering-Techie is a free, online training portal for HVAC, Test & Balance and Commissioning Technicians, HVAC Project Managers, HVAC Service Technicians, HVAC Controls Engineers and even HVAC designers. We discuss all things HVAC, from HVAC equipment types to how to perform test and balance to HVAC math and physics. Some of our videos may be a bit long, but well worth the instructional training. We hope that this training will be beneficial to you!