Start
Here is where your journey into HVAC nerdiness may start. Check out our latest videos, tech tips, and podcasts all in one place.
August 11, 2025
VIPER WETRAG HEATSHIELD vs OPEN FLAME – Protect Your Work Area While Brazing
In this demonstration, Ty and Ash put the VIPER WETRAG HEATSHIELD from Refrigeration Technologies to the test using OPEN FLAME conditions and show how to Protect Your Work Area While Brazing. Watch as they show the dramatic difference between protected and unprotected materials when exposed to high heat from brazing torches.
Get Tech Tips
Subscribe to free tech tips.
Check our latest Tech Tips

The HVAC industry's ongoing shift towards eco-friendly solutions continually introduces new challenges and learning opportunities. A2L refrigerants are at the forefront of this transformation, offering a lower global warming potential (GWP) than many of the refrigerants we’ve been using. They’re also mildly flammable, meaning they require some enhanced safety measures. One of these is the […]
Read more

This is part two of our four-part series on oscilloscope fundamentals. Special thanks to Andrew Holden for his contributions. In our last tech tip on oscilloscopes, we learned about some safety basics, waveforms, and measurements. We’re going to dive a little deeper into systems and settings on the oscilloscope in this tech tip. Systems are […]
Read more

Every trade has its favorite phrases. One of the most common in HVAC goes something like: “I’ve been doing it this way for 20 years and never had a problem.” When you hear that—or when you catch yourself saying it—it’s worth stopping to think. Usually, what that sentence really means is: “I’ve been doing it […]
Read more
Our Most Popular Videos
