Note: Schwank will offer a webinar for PDH credit on April 15, 2018 for engineers interested in learning more about infrared heating and air curtain design in these applications. The registration link is at the bottom of this blog.
I'm not saying you can get PDH credits for no effort, but there are some pretty easy (and often free) ways for professional engineers to earn PDH credits. These won't soak up too much of your time and, perhaps most important, you may learn something.
The wasted energy from the US industrial sector is enough power to run 22 cities the size of New York City.