Written While this is fundamentally possible because they share all of the same components I would not expect this kind of modification to be effective without a significant investment of time and materials to modify the window AC.A window AC is typically a more efficient choice than a portable AC because the compressor and other mechanical components are able to vent to the outdoors. A single hose portable AC draws air only from the room and expels hot air out of the vent hose. This causes a low pressure area in the room and can often lead to hot air being drawn into the room from other parts of the house or outdoors, lessening the cooling effect of the air conditioner.A modification like the one in the video below will lead to the same low pressure area as a single hose portable AC and to be honest, seems like a lot of work.You could also modify a window AC to sit inside a window in a specially constructed box that allows the unit to vent to the outdoors without the hassle of trying to construct a venting system.

/f17/w...This box idea seems like the best solution to a window AC that cant be mounted out a window. However, if your looking to make it a true portable AC than option #1 is probably going to be your best bet.Written If you are very particular, Yes!!?Place Window A/C on a wheeled table. Close the back side with a cover having 2 spigots of 250 mm size(or 200 mm if size do not permit)Connect these 2 spigots with 250 mm flexible aluminum ducts( length of which should be suitable to reach outside atmosphere. Ensure no opening with outside other than these hoses. Locations of these openings should correspond to the air in and out for cooling the condenser coil. If the length of hose is more and fan inside the Ac is not sufficient to drive air, fix more more fan along with the hose. Folks, it's hot out there and these air conditioners are selling fast! We’ve got a selection of window units, portable ACs, and fans from famous brands like Haier, Magnavox, GE, and Comfort Zone! You may find air conditioners like this: 8000 BTU window air conditioner with 3 cool settings from Magnavox is just $189.99 - the fancy stores sell the same thing for $260!