its called a fan.. ;) most window airs will bring in air from outside.. but why? fucking use a air conditioner fuck some outside air that shit is tainted ;)
Regardless of the AC you buy you will need to vent the hot air somewhere. If you don't vent it outside then you might as well not be running the AC.
I got a 10,000 BTU portable unit with Dryer like hoses; one to intake air from the outside and one to spit it back out. Its one big unit. I doubt you'll hear the outside with that baby humming away.
If you suck air from the room you create a vacuum in the room and will draw in warmer air from the house. If you suck air from the outside and force it into the room the room becomes pressurized and you'll be forcing the cold air out.
most air cond. systems are not taking outdoor air. just cooling/heating the air inside.
You're absolutely wrong. If that was the case you wouldnt need to keep it at a window.
AC units use the outside air to help cool the unit down, intake cold air from outside, run it over the internal parts and spit out heated air (back to outside).
If it worked any other way then the air which gets heated by the AC would be pumped back into the room which it is trying to cool and would more or less be useless.
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