Learning the Basics

Learning the Basic HVAC  training
How basic HVAC works. 
 Any time -- Any where -- Any device

This is a free HVAC training video via a youtube link.
 ​Thank you for your time and motivation. Testing lets you know, your skill level. Testing will improve your skill level. Educate yourself about HVAC, take a test about HVAC and let the BOSS know, that you are improveing your trade skill.
Learning The Basics is current developing a test for this video.