A portable air conditioner is compact, lightweight and easy to move around. This type of cooler does not require installation but many require the user to vent the unit through a wall or window. In some cases a drop ceiling is suitable for venting. The vent hose attaches to the unit and directs hot air to the exterior of the room or building.
Some manufacturers market their products as ventless portable air conditioners but the name is misleading. All portable units must vent hot air to a different location. Some users will vent the hot air to a storage room or some other unoccupied space where heat is not an issue.
The hot air must vent to a different location for the air cooler to do its job. Venting an air conditioner is inexpensive. Most AC manufacturers include an installation kit for positioning the unit in a sliding door or window.
The first step to venting a unit is finding a suitable location for the vent. This may be a drop ceiling, a wall or a window. Attach the exhaust connector to the back of the unit and connect the exhaust hose to it. The next step involves connecting the window kit to the adaptor. Place the venting kit in the window opening and close the window as far as it will go.
The window kit must be the right size to fit the window or sliding door. A foam seal keeps air from leaking around the edge of the window. The exhaust hose travels through a small hole in the foam. Installation of this type of system takes approximately five minutes and you can relocate the unit to any window at any time.
The exhaust hose should have a diameter of five inches and be five to seven feet long. Manufacturers warn against extending the hose length because this can damage the unit. To use a longer hose it must have a larger diameter. Before altering the hose, read the unit’s warranty manual to make sure you do not do anything to void the warranty.
Air conditioner manufacturers warn against venting a cooling system through a dryer vent. This can be an even bigger problem if the exhaust hose diameter is larger than the dryer vent diameter. If your dryer vent connects to external vents, you should not attempt to use those as venting options. The portable unit’s air compressor does not have enough power to move the flaps to the open position.