Feb 19, 2026
One thing I know about engineers. They love pop quizzes. Here’s some food for thought before our Air Distribution (AD) class on 03/03/26. Here’s a plaque diffuser. It’s a terrific general-purpose diffuser. 1. Here’s a directional diffuser. Does it perform any...
Feb 12, 2026
The video depicts a common phenomenon. Last I checked: Hot air still rises Engineers still prefer VAV systems VAVs in heating mode still limit air flow from 30-50% Is it really so shocking that typical diffusers don’t make spaces comfortable in heating mode? When’s...
Feb 6, 2026
Who doesn’t love a good conspiracy theory? Hear me out. Think about all the companies that you ever purchased or specified grilles and diffusers from. And think about where they came from. Titus? That’s Texas. Krueger? Funny, Texas again. Nailor? Guess What? Texas....
Aug 19, 2025
My guess is that 5-10% of you know plenty about chillers, and you don’t need to sit in our Air Flow/Dunham Bush Chiller class. For me, I look at a chiller in a mechanical room and get mad at myself because I can’t identify the components without a notepad and a few...
Aug 14, 2025
One of my favorite sayings is “No one does anything until there is a problem to solve.” So this chiller training/Dunham Bush product overview invitation flies in the face of one of my own favorite statements. The chiller market is mature. There are big and successful...
Aug 7, 2025
These are great books if you haven’t read them. ‘Revenge’ came out last year and ‘The Tipping Point’ is over 25 years old. Applying ‘Tipping’ principles here, it seems like $50 isn’t a tipping point. Air Flow has been running a $50 gift card for a $500 order for a few...
Aug 7, 2025
Congrats to our first several successful bounty hunters. Both engineers and contractors have won multiple bounties! While there are no more $100 bounties, there are hundreds of bid bounties yet to be awarded. What are you waiting for? Log into Air Flow’s customer...
Jul 31, 2025
Air Flow’s Training Class #3 was centered on the new combustible dust standard 660. We kinda figured NFPA 660 would be a big deal. We Kinda learned it’s not. Not much (that we can see) has changed other than literally the chapter and verse. New standard, but the same...
Jul 3, 2025
Alliteration is a powerful tool. It may have caused you to read this far. Software for coils and fan coils that includes multiple options for the number of rows, the number of circuits, the fin spacing, the tube diameter, is also powerful. If you want to increase your...
