Ever wonder exactly what is return air vent for?
You've probably noticed those large grates on your walls or ceiling and wondered what is return air vent doing in that specific spot. Most of us just walk past them every day without giving them a second thought, but they're actually the unsung heroes of your home's comfort. If you've ever felt a room get strangely stuffy or noticed that your AC seems to be working way harder than it should, the answer usually lies right behind those metal slats. ...