I need to buy a new air conditioner, but my unit sits in a sleeve in the wall. Can I buy a regular window unit or does it need to be a special through-the-wall air conditioner? Unfortunately, it's not ...

We're going to buy some new room air conditioners and are choosing between through-the-wall units that require a sleeve and window-mounted units. Which do you ...

I’m getting a couple of wall-through air conditioners installed. To do this, holes have to be punched through the building (they aren’t already there). Do I need a building permit for this? I’ve tried ...