In a message dated 2/18/0 9:37:35 AM, [log in to unmask] writes: >that anyone wanting to put in aluminum > >replacement windows should provide -- at no additional charge -- a partial > >lower sash to close the gap Actually, they can make a second lower sash which has a hole cut in it for a specifically sized A/C unit. The problem is, with this huge number of windows, everyone would have to have standardized A/C unit sizes. HA. Ken: I don't deny that it is hard to kick off from the wall to avoid humongous A/C units, but from the A/E side, my terror of that enormous gap between the stage and the wall makes up for any amount of operator muscle strain.