Ken, you are a literal godsend with these videos. This video is the missing link in helping me pass my exam. I have to retake my gas fitter/plumber exam for the 5th time And this is coming from somebody with a degree in economics from Umass Amherst. The level of detail in these video astonishes me ; big props to you for helping me finally pass my exam.
Hey Ken, only thing I am struggling with is understanding the differentiation in pressure drop. I understand sch 40 steel has a low pressure drop compared to say soft copper. But why does my table in 2018 IFGC, table 402.4(1) show a .3 pressure drop has lower cfgph than a larger pressure drop of .5? Im also in Colorado at roughly 6000' and need to also figure out how that affects these calculations too.
