Window air conditioners and winter: how do they mix?
All things considered, I’d probably leave it in the window. Sealing it in there for the winter may well be easier than storing it. First, you’ll need to extend the “storm window” alongside the AC unit. This can be done with duct tape and clear plastic sheeting (thicker is less clear, but you won’t have to look at it, your neighbors will). I would get some foam insulation from the hardware store and put it between the AC and the window frame on top and bottom. The stuff marked “tight fit” should be plenty, but I don’t know how well it fits down below. Second, you’ll want the accordion thing sealed up fairly tight as well. Many models come with screw holes for this purpose. (Just figure on putting some wood filler and a dab of paint on it when you move.) Or duct tape again if you’re squeamish. The top and bottom of the accordion thing will leak both outside its extendable frame, and inside between its frame and the accordion material. The first you can deal with using any kind of disposa
