Complete: HO said he wasn’t sure what was causing the water damage on bedroom ceiling he assumed either duct work or flue. In the attic found stream of dried water discoloring running from roof down the flue. The duct work is fine. The supply lines running into that room are actually coming from a supply junction box. So really no way for it to be causing that sorta damage. Told HO he will need to get a roofer.