James Bridges HVAC/R Evacuation Quiz January 28, 2022, 9:30 pm

Leave a Reply

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.

Related Tech Tips

The Learning Mindset - It Isn't Obvious Until It Is
Note: This short series is on the mindset of learning (and teaching), not really a “tech tip,” per se. We will be back to the tech tips in a few days.  I've heard and repeated these phrases countless times over the years, both at home and work: That should be obvious. It's just common sense. […]
Read more
Oil and Refrigerant
We all see a lot of questions about dyes, leak stoppers, lubricants, inhibitors, and snake oil. All of those were designed to go into the refrigerant circuit and “improve” something. I just go back to what Ray Johnson always said. (Ray is one of my early heroes in the biz, and he taught me a […]
Read more
Size and Orientation of Return Grilles and Supply Registers
Proper sizing and orientation of grilles, registers, and diffusers may seem like such a simple thing, but it's an area where confusion and mistakes are commonly made. First, let's define some terms. Return  A return draws air into a return duct system with negative pressure compared to the space, usually via a fixed “grille” (also […]
Read more
loading

To continue you need to agree to our terms.

The HVAC School site, podcast and daily tech tips
Made possible by Generous support from