Start
Here is where your journey into HVAC nerdiness may start. Check out our latest videos, tech tips, and podcasts all in one place.
November 26, 2025
Crankcase Heater Wiring | SureSwitch vs Standard Contactors
Master the essentials of crankcase heater wiring in this HVAC training video. Learn how White-Rodgers SureSwitch contactor by Copeland (Model 49M11-843) compares to standard contactors and why proper installation is critical for compressor longevity.
Get Tech Tips
Subscribe to free tech tips.
Follow Us On Social Media And Podcast Platforms
Download HVAC School App
Check our latest Tech Tips
This tech tip about humidity control, particularly as it relates to VRF systems and others that use inverter technology, is a companion piece to a podcast episode with Roman Baugh. You can listen to that podcast episode HERE. Those of you who work in humid climates and install or repair ductless systems are probably well […]
Read more
Every once in a while, especially on humid days, you’ll sit on an airplane waiting for takeoff and see fog pouring from the ceiling vents like a low-budget concert. Someone always panics and asks if something’s on fire. It’s not smoke—it’s condensation. You’re looking at thermodynamics and psychrometrics in action. So, why does it happen, […]
Read more
I admit it, I'm a sauna guy now. The ones at the gym are pretty gross, so I got a small one at home because I guess I’ve missed sitting in attics or something. If you’ve ever sat in a traditional sauna, you know the drill: the heat’s already intense, and then you or someone […]
Read more
Our Most Popular Videos
