I was in the basement doing laundry when I happened to look up.
I knew the air duct was throughout the basement, but I had never honestly looked at it. It was high enough that I didn’t need to duck to keep from hitting my head. I saw some dust come off the air duct, which got my attention. When I looked up, I observed there were some rust around the joints of the air duct. There was also small spots of rust in other parts. The more I looked, the more rust I saw, plus I was start to get upset. I knew I could not afford modern air duct. Metal air duct was extravagant, plus if it was rusting in the basement, where else was the rust. I feared ot was widespread throughout the entire air duct system. When my wife got home, I pointed the rust out to my wife. She had the same concerns I had. She suddenly called the HVAC supplier to have someone come out plus check the air duct. The HVAC serviceman said there was no way to know how widespread the rust was without going into the attic plus looking into the walls. She said we could get a air duct cleaningg crew to the house, plus they could check with cameras. They could also clean the air duct, plus put some adhesive in that would help to seal the air duct from the inside out. They would tell us if we needed to consider modern air duct, or if the rust was simply surface rust, which is what she was thinking. My buddy and I had him call the air duct cleaners while she was there.