The ornamental design for a ceilingfanhousing, as shown and described.
FIG. 1 is a bottom perspective view of a ceiling fan housing showing an embodiment in accordance with my design;
FIG. 2 is a reduced top plan view of the ceiling fan housing in accordance with my design;
FIG. 3 is an enlarged front elevation view of the ceiling fan housing in accordance with my design;
FIG. 4 is an enlarged back elevation view of the ceiling fan housing in accordance with my design; and,
FIG. 5 is an enlarged side elevation plan view of the ceiling fan housing in accordance with my design, the opposite side being a mirror image of that shown.
The broken line showing of the ceiling fan blades, canopy, blade irons, support pole and light fixture is included for the purpose of illustrating environmental structure and forms no part of the claimed design.