1.   A second rear-mounted air-condition ing system provided cool air through ceiling vents, a nice system for interior comfort.

2.   Q. I am looking at a condo that is heated and cooled through ceiling vents.

3.   Q. The air-conditioning unit of my ranch house is in the attic, with ducts running along the floor and into ceiling vents.

4.   Q. We have central air with ceiling vents.

5.   Overhead, ceiling vents are getting patched and painted.