Hello. We have lived in our 1948 Bugalow for 5 years. After moving in, we noticed a vent on the outside wall between the two floors. We never gave it much thought.
Now we are replacing the siding and our contractor has no idea what it is for and has suggested covering it. I tend to agree, but wondered if anyone know why it is there and if should should be maintained
I have attached a photo. The duct runs the length of the house, but that is all I can see. There is an electical wire that is cut off at the open end, so maybe there was a fan there at some point.