I need some tips to install a Goldstar 5,000 BTU window air conditioner in the main bedroom of a 1998 Commodore 55' x 14' home. I've only owned the home since January 2004. The window system that the home uses has 2 panel single pane tickness in metal fames that are flush with the outside of the home (the screens are at this location also) while there 's a similar 2 panel single pane thickness in metal frames that are flush with the inside drywall. Both the inside and outside windows slide up and down and are separated by a space, Im guessing, that is that apprximately the thickness of a 2 x 4.