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Fans are not like teenagers

Fans are not like teenagers

“Your fan is acting up.” It’s almost never true. The same can be said about our competitors’ fans. Fans may seem to have personalities, but they really have none. I have heard many people describe fans like disgruntled teenagers. Ornery. Touchy. Temperamental....
Direct drive fans confuse HVAC nerd

Direct drive fans confuse HVAC nerd

Here’s the fan, a direct drive utility set, designed for 10000 cfm at 2” of static pressure. Here’s the performance, extrapolated from Loren Cook’s selection program. Wait, stop, hold on. The smallest fan with the highest brake horsepower has the smallest motor. That...
A direct drive dream come true?

A direct drive dream come true?

Less maintenance is good. Eliminating drive loss and belt maintenance is also good. VFDs are now inexpensive, so let’s put everything on a drive, and that’s good. Three goods in a row. Now, what if that motor fails? Eventually it will. Maybe it’s right away, and under...
What You Missed at ‘Discovering Humidification in Reverse’

What You Missed at ‘Discovering Humidification in Reverse’

“I did not survey 100 people, but I did ask Tom 100 times.” – Caleb Thanks to those who participated in person and online. Since you missed it, our very own Caleb Lenhof surprised the audience with a rousing game of Family Feud, and a few doses of...
Which fuel source for the humidifier?

Which fuel source for the humidifier?

Seems like gas would be a no-brainer. The fuel cost of gas is roughly ¼ of electric resistance. But there’s a lot more to consider. Would you know what to recommend to your customer? Register and find out! You are invited to ‘Humidification in Reverse’This is an...
Great for the beach, not great for humidifier service

Great for the beach, not great for humidifier service

If the humidifier service manual for the owner requires a shovel and pail, then how fun is it to service? Shovels and pails are meant for the beach and putting up basketball hoops. Not servicing humidifiers. You are invited to ‘Humidification in Reverse’This is an...
Do you mind being treated like a beginner?

Do you mind being treated like a beginner?

This is my favorite way to start teaching a subject. Is it OK for me to treat you like a beginner? Usually, a sense of relief is felt when the manager or the oldest engineer in the room (sometime begrudgingly) agrees that would be the best way to begin. When I started...
Mimosa’s + HVAC Training, Anyone?

Mimosa’s + HVAC Training, Anyone?

Ok, there were a few boo-boos in the training schedule. This post serves to correct them. In the process, we did have a fun suggestion. Eric from Martin Petersen Company suggested we serve Mimosa’s on the August 6th training class, because it’s a Sunday. First, the...
How committed are you to your own development? To your team?

How committed are you to your own development? To your team?

Hey there, This is the first in-person class announcement you’re seen from Air Flow in almost 3 years. It’s been a while, no? We’ve sure missed you. And of course, the world went ahead and changed. Nearly everything about our classes is changing too. For starters,...