while cooling vents may be on the floor, and, in many cases, both are found near windows and doors. If a return air vent is located directly on the ceiling, it poses the valid question of what ...

It can cause a problem when you close room doors because the single return vent might not have enough air to pull. Transfer grilles, which are cutouts through the wall covered in grilles ...

Closing doors doesn’t help with energy efficiency ... home before it flows back into the A/C unit through return vents and ducts. That air is then cooled again and dehumidified in the A/C ...

In July, VERIFY found that closing off unused rooms by shutting doors and vents does ... equal the volume of air going out. The blower pulls air from the house through the return ducts and then ...