The ornamental design for a ceilingfanhousing, as shown and described.
FIG. 1 is a bottom perspective view of a ceiling fan housing in accordance with my design;
FIG. 2 is an enlarged top plan view of the ceiling fan housing in accordance with my design;
FIG. 3 is an enlarged bottom plan view of the ceiling fan housing in accordance with my design; and,
FIG. 4 is a greatly enlarged side elevation view of the ceiling fan housing in accordance with my design, all sides being identical.
The broken line showing of the canopy, support rod, blades, blade irons and light fixture is included for the purpose of illustrating environmental structure and forms no part of the claimed design.