Went by to inspect a complaint of flue gasses getting into a hotel room. Found boiler vents terminating below a window and PTAC unit of a 2nd floor room. I've went in and spoke with the Hotel Director and made her aware of the compliant. She seems more than willing to work with us on the issue. After researching the Hotel construction and Boiler manuals I found that this is the original installation from 2001. At this time I can't definitively say that the boilers have or haven't been installed per the instruction manual. More investigation is needed. I will meet with the Hotel maintenance worker as soon as possible.