The ornamental design for an airconditionerhousing for mounting in double-hung windows, as shown and described.
FIG. 1 is a front elevational view of an air conditioner housing for
mounting in double-hung windows showing our new design, the window and
portion of a wall are shown in broken lines for illustrative purposes
only;
FIG. 2 is a side elevational view, the opposite side being similar; and
FIG. 3 is a top plan view, the bottom being similar.