Tickets On Sale For The 8th Annual HVACR Training Symposium!


PURCHASE TICKETS

Don’t miss HVACR’s main event—AHR Expo Chicago!

Explore the latest product innovations, industry trends, and best practices shaping the year ahead. Connect with leading manufacturers and discover solutions designed to solve workplace challenges and support your professional growth. Registration is free and includes access to everything HVACR—products, professionals, perspectives, and more.

Get your tickets now

Check out other formats

Bryan Orr

BRYAN ORR

Co-Founder and President at Kalos Services, Bryan has been involved in HVAC training for over 13 years. Bryan started HVAC School to be free training HVAC/R across many mediums, For Techs, By Techs.


Read more

Check our latest Tech Tips

Pitch on Line Penetrations
Most techs and installers know that drains need to be pitched. I use the rule of thumb that drain lines should generally be pitched 1/4″ per foot of horizontal run. One thing that can easily be forgotten is pitching wall penetrations when drilling. It’s as simple as drilling with a slight upward angle if drilling […]
Read more
It Has a Flat For a Reason
When tightening down a blower wheel or a fan blade on a motor shaft, ONLY tighten it on the flat of the shaft. That flat is machined into the shaft on purpose. It gives the set screw a face to bite into instead of a curve to slide off of. On most residential motors, it […]
Read more
Motor Speed - The Basics
How does a typical single-phase motor know how fast to run? Typical induction motors depend on the electrical cycle rate of the incoming power (measured in hertz) for their speed. Our power in the US makes one complete rotation from positive electrical peak to positive peak 60 times per second, or 60hz (50hz, or 50 […]
Read more

To continue you need to agree to our terms.

The HVAC School site, podcast, and tech tips are
made possible by generous support from