The ornamental design for a ceilingfanhousing, as shown and described.
FIG. 1 is a perspective view of the ceiling fan housing showing our new design in use;
FIG. 2 front elevational view thereof;
FIG. 3 is a rear elevational view thereof;
FIG. 4 is a top plan view thereof; and,
FIG. 5 is a bottom plan view thereof.
The broken line showing of the ceiling fan blades, blade irons, support rod and light fixture is included for the purpose of illustrating environmental structure and forms no part of the claimed design.