Just the 1 AC kept in storage after 1 summer used. Opted for central air. The accordion window shims are not available as complete. That is to say, the one season made them brittle, and the frames are available to be refitted to new accordions (4 snaps of any brand trimmed down to size will work). Simple 2 knobs and works great to dehumidify. Also, after the first season, I cleaned it and attached screen netting to keep dirt maintenance down and performance up. But no 2nd season was needed. If it will allow, I will help deliver the unit within reason.