They are also cheaper whole house hvac systems although a portable air conditioner is designed to sit inside of a room, not hang from a window.
View How To Vent A Portable Air Conditioner
Background. In most cases, using a dryer vent to exhaust a portable air conditioner isn't recommended. A portable air conditioner works similarly to any other air conditioning system.
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Portable air conditioners use this unit to measure their cooling power, so the higher the btu rating, the larger the room an air conditioner can cool. If your portable air conditioning unit is not able to vent this warm air outside because of the hose, the unit will not be able to cool down your home effectively. We will get into the various ways you can vent a mobile air conditioner with and without a window.
Portable air conditioning is also a good way to boost the cooling power of an aging system or add a shot of cold air.
The straightforward answer is yes. The most important aspects of installing a portable ac properly are its venting and drainage. They collect heat from a room and send it somewhere else through an exhaust vent. You can vent it easily even without access to a window.