Get Tech Tips
Subscribe to free tech tips.
HVAC/R Evacuation Quiz January 1, 2023, 7:45 pm
Related Tech Tips
W1, W2, & E
I got this question via email (edited slightly for length): Some things I've done because I've been taught to do them yet I don't know why I do them. One of those things is putting a jumper between w1/e and w2. Sometimes, in the case of a Goodman for example, I've been taught to combine […]Read more
The Learning Mindset - Trial & Error
I'm far from a country boy, but I did grow up in a rural area with animals, playing in the woods, and cleaning out chicken coops. Like many of you, we would play most of the day outside without our parents knowing or worrying about where we were. Was that an “unsafe” way to grow […]Read more
What is the Difference Between ACH & ACH50?
This photo is of a blower door test we performed at my own house using a Retrotec blower door. You will notice the 15-passenger van outside the window, which is a dead giveaway. A blower door is used to measure the tightness of a building and is often discussed in terms of an ACH50 number. […]Read more