Start by placing the unit relatively close to the window that will serve as the exhaust.

Venting portable ac into attic. Also, when the air is cold in the room, that heavier cold air tends to fall (opposite of the familiar hot air rising) and hot air can get sucked in from the attic into that bedroom if there are any air. Slide your sliding door back far enough to allow for the vent hose. If you try to vent a single outlet portable a/c into this.

In a properly vented attic the temperature can rise to 20 degf above outdoor temps. Every cubic inch of air you blow out of the room into the attic has to be. That was our intention wit.

Make sure that there is a good seal between the window and the vent kit. Set up the unit relatively close to a traditional window. The shorter the hose, the more challenging it will be for you to vent it to the attic.

The exhaust air is not high. Generally dual hose portable ac are more efficient and perform better cooling. If the vents are not sized correctly, it.

Let’s say that the vent hose is five inches in diameter. Fit the exhaust hose into the exhaust connector. You don’t want any insects or air transfer from the outside.

It's not a great idea. Say you use a single hose portable air conditioner. Considerably more if not well vented.