The photo above is of a real condenser coil we cleaned just the other day. The outer fins looked OK, but dirt and lint were packed deep inside, and the head pressure and condensing temperature were sky-high. That situation illustrates that a coil can sometimes look OK at first glance but may still need to […]

A lot of proper duct design comes down to an understanding of available static pressure and friction rate. We've covered this topic several times on this site and the podcast, but I wanted to focus on this ACCA chart specifically (shown above). If you want a deep dive, I highly recommend listening to my podcast […]

I'm not sure who first started calling evaporator coil odors “dirty sock syndrome,” but I really wish they hadn't. Nowadays, every tech out there can't help but categorize every odor from the system as “dirty sock syndrome,” and customers just LOVE to hear that they have a “syndrome” named after a dirty locker room smell. […]