New to owning a home an came across an issue I'm not familiar with, if anyone can provide some insight as Google not really pulling up my issue.
I'm getting some condensation on the outside of my cold air return, right before it goes into the furnace. As per this photo, it seems very specific to this insulated pipe that comes in to the duct work on the left. The insulated pipe is on the side of the house where I have all the venting, etc but unsure exactly what this pipe does.
Is this cold air being brought into the cold air return, causing the duct work to get very cold and causing condensate to form on the outside? Should I be concerned? It's just dripping on to the concrete next to the floor drain. Thank you!
https://imgur.com/a/ajzxbb9