Mounting Window Air Conditioners Away from Windows Mounting Window Air Conditioners Away from Windows

What You'll Need
Stud finder
Silicone putty caulk, caulking gun
Power drill
Portable air conditioner unit, vertical case mounted on wheels
Wall vent and exhaust duct, 4 inches in diameter
Foil-textured duct tape to connect duct to vent
1-inch screws, stainless steel

Though you may own a window air conditioner or find a cheap window unit, the space you want to cool may not have a window in which to mount it. While you could cut a wall vent to house the air conditioner, this might not be practical. A simpler solution is to create a wall vent for a portable unit with a flexible exhaust pipe instead. Follow the directions below to install a portable air conditioner with a wall vent exhaust system.

Step 1: Choose the Location for Your Portable Air Conditioner

Choose a spot in the room that is near a wall outlet to plug in the air conditioner. Ensure it is far away from light switches and where wires and water pipes might be installed. Use the stud finder to check where the wall studs are. You will need a spot about 24 inches above the wall outlet and to one side to install the exhaust vent.

Step 2: Cut a Hole for the Wall Exhaust Vent

With the jigsaw, cut a 4-inch diameter hole through the wallboard and insulation to install the wall vent. If your house is finished in brick, you will need to remove some from the outside to finish the hole. If your house has wood or aluminum siding, you can cut through those materials with the jigsaw.

Step 3: Insert the Wall Exhaust Vent

Take the wall vent, the caulking gun and caulking outside. Coat the end of the vent that will be inside the house with the silicone putty. From outside the house, push the vent into the hole. Use the power drill to secure it to the outside wall with1-inch screws.

Step 4: Attach the Exhaust Duct

Inside the house, fit the exhaust duct into the wall vent, and secure it to the inside wall and to the vent with the foil-textured duct tape. Be sure these two parts fit together snugly, making an airtight seal. This will greatly reduce noise while the air conditioner is operating, and prevent cooled air venting to the outdoors.

Step 5: Connect the Flexible Air Conditioner Pipe to the Wall Exhaust Duct

Extend the flexible air conditioner pipe so it fits tightly into the wall exhaust duct. Secure it to the edge of the wall exhaust duct with the foil duct tape.

Step 6: Plug In the Portable Air Conditioner

At the wall outlet, plug in the portable air conditioner and turn it on. Set the temperature control to the desired room temperature. If the air conditioner unit has a timer, set a running time on it.

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