Does air conditioning bring in outside air? Here's the truth
Most people just assume that their air conditioning brings in outside air to cool the house down, but the reality is actually a bit more surprising. If you've ever stood outside next to that big, noisy metal box while it's running, you might have felt the blast of hot air and figured it was just sucking in the breeze from your backyard, chilling it, and blowing it into your living room. It makes sense on the surface, right? But in almost every standard residential setup, that's not what's happening at all. ...