I've been doing some sealing and insulating in my attic, and discovered a purpose built vent directly from the utility room into the attic space. See most of these photos
The house is in a townhome/condo; it is second floor over the garages, so I don't have a basement. The utility room (furnace, water heater, laundry) opens directly into the kitchen. Two registers in the utility room open directly into into the wall space, the top of which space had a vent pipe attached to keep the loose insulation out.
Does this make any sense at all? If it does have a purpose, is there a better way to accomplish it than a hole in my ceiling?