On the test question 28 needs to be re worded. It askes how much insulation a duct needs when ran through an unconditioned space. But it doesn’t state if it’s running through a wall or ceiling. As far as I know, the duct has to be insulated to meet the same r value as the ceiling or wall that it passes through. Just felt the question needs to state it to make it a more fair question. At the moment you have to guess which it is.
I have talked to some of our guys who took this course before and they mentioned, there is an exam (few questions) after the course and every student needs to pass, to be able to get the certificate, which is fair.
Instructor did exceptionally well engaging the class. Recommend to do a super quick overview where the class only watches the instructor do inputs on a very simple project. See the results. THEN follow along with the inputs. Also be aware of display screen size on Zoom. At times the instructor's screen displayed too small to be able to focus clearly on what was being shown. (I watch on a large monitor - it would be worse for people on laptops or other devices)
Only suggestion is to keep a continuity of topics with charts in the book and to lengthen the course a bit as 3 days is too short for the course. Added problem solving component would make the course even better too. It would also be highly beneficial to have questions relating to airflow and other issues with diagrams/pictures to get a more real life approach to what we are dealing with and how to identify and rectify problems. Overall, It was a pleasure! Thank you.