Get Tech Tips
Subscribe to free tech tips.
Bonus – Leak Sealants and How They Work w/ James Bowman
James Bowman talks to Bryan about sealant products, how they work, when they don't work and how to be open minded without being gullible.
Related Tech Tips
Simple Pump Selection Exercise
Here is another excellent article from Michael Housh, owner of Housh Home Energy and a regular contributor to HVAC School. Thanks, Michael! I thought I would go through a simple example of sizing a hydronic circulator for an application. This is a made-up scenario, but I sketched out a 20’ x 20’ square home with […]Read more
Understanding Relays With the 90-340
Relays can be used for many different control applications, including controlling fans, blowers, other relays, or contactors, valves, dampers, pumps, and much more. A 90-340 is a very common, versatile relay that many techs have on their truck. So, we will use it as an example. A relay is just a remotely controlled switch that […]Read more
Changing Refrigerants and Why it Matters to You
Graphic Courtesy of Danfoss During the week of 9/18/2017, Danfoss put out a lot of great information on global changes to refrigerants and their expected impact on equipment and the industry. This a quick overview of the different types of refrigerants, the reasons for the changes, and some things to watch out for. ODP […]Read more