Wong's expert report (197-1, page 4, bottom) lists the size of the wooden structure he was told enclosed the supposed mezzanine heat exchanger. It was 1m x 6.5m x 10m.
Rather that posting diagrams, photos, etc here, I refer you to the discussion I had with Engineer48. You will see there a suggested layout of the heat exchanger diagrammed in blue. That is Engineer48's diagram, not mine. I just drew the red lines on ii in a position that I though corresponded to the marks on the floor. The point I was making is that there is no orientation of a 6.5 x 10 m structure that can be made to correspond to the marks on the floor. I also hope this illustrates that my I always try to make my arguments evidence based.
Please lay it out here. I followed your disqus link and it seems to only show a picture of the mezzanine with a giant rectangular marking on the floor. I don't see a suggested layout of the heat exchanger or your red lines. You mentioned that you used Google Maps to do some proportional measurements. Put together a cogent story and perhaps you will persuade me. Right now all I see is evidence that something large once sat upon the floor of the mezzanine.