It will feel good to get this off my chest. OK, here goes.
Yes, I have a mechanical engineering degree from Northwestern University. You can see that on my LinkedIn profile.
What you won’t see is any experience with psychrometrics.
You can tell that I don’t, because I spelled it wrong in the course catalog.
I’ve never taken a class on the subject
Maybe you MSOE nerds did, but I sure didn’t.
What I’ve learned, I’ve learned on my own. How much do I know? Let’s just say I’d hate to take a test.
Maybe you’re in the same boat; perhaps not willing to admit what you don’t know.
For me, if it gets you to read this blog and gives you a chuckle, I’ll subject myself to a little shame and embarrassment.
For you, your secret is safe. You can just come to class and say it’s a refresher or you need PDHs.
See you in class!

You’re Invited to “Psychrometrics for Dummies”
This is an in-person class with the option for remote attendance.
When: April 8th, 2025 10:00 AM – 12:00 PM CT
Topic: Psychrometrics for HVAC applications
Facilitator: Jason Leffingwell, PE, LEED-AP, Grumman | Butkus Associates
PDH Credits Available: 2
All the best,
Tom Gelin
Air Flow Inc.
8355 West Bradley Road
Milwaukee, WI 53223
414-351-1999
