How to Install Your Portable AC Unit with a Fabric Casement Window Kit

Portable air conditioners are lifesavers during those scorching summer days, but proper installation is essential to keep your home cool and comfortable. If you have casement or crank windows, traditional plastic window kits often won’t work — that’s where a fabric casement window kit comes in handy.

These kits are flexible, easy to install, and designed to block hot air and bugs while venting your portable AC effectively. Let’s walk through how to install your portable AC with a fabric casement window kit, step by step:

What You’ll Need

• Portable air conditioner with exhaust hose

• Fabric window kit (designed for casement or crank windows)

• Adhesive hook-and-loop (Velcro) strips (usually included with the kit)

• Scissors or utility knife

• Cleaning supplies (mild soap, water, cloth)

  
  

Step 1: Prepare the Window

• Open your window fully to create enough space for the vent hose.

• Clean the window frame and surrounding area so the Velcro strips can stick properly. Wipe away any dust, dirt, or grease with a mild soap solution and let it dry completely.

  
  

Step 2: Attach the Velcro

• Take the supplied adhesive hook-and-loop strips and apply them around the window frame.

• Apply the other side of the Velcro to the edges of the fabric window kit itself.

• Make sure you line them up so the fabric will seal tightly once you press it into place.

Step 3: Install the Fabric Kit

• Attach the fabric kit to the Velcro strips around the window frame.

• Smooth it out as you go, making sure there are no gaps for air, bugs, or moisture to sneak through.

• The zipper in the middle of the fabric kit is where you’ll run your portable AC’s exhaust hose.

Step 4: Connect the Exhaust Hose

• Run the portable AC’s exhaust hose through the zippered opening in the fabric kit.

• Adjust the zipper to close snugly around the hose, creating a tight seal so hot air doesn’t leak back in.

• Double-check there are no big gaps around the hose or along the zipper line.

Step 5: Secure Everything and Test

• Make sure the fabric kit is firmly sealed all around the window frame.

• Close the casement window as far as possible against the fabric to keep it secure.

• Turn on your portable AC and check that the air is flowing properly through the exhaust hose.

• Feel around the fabric for any leaks; if you find any, reseal the Velcro or adjust the zipper.

Tips for Best Results

• Measure first: Before buying your fabric kit, measure your window to be sure it will fit.

• Check for wear: Over time, Velcro can lose stickiness. Clean or replace it if needed.

• Take care when removing: When the season ends, peel the fabric kit away gently to avoid damaging the adhesive.

Final Thoughts

A portable AC with a fabric casement window kit is a practical solution if you have crank-out or vertical casement windows. The installation is quick, budget-friendly, and doesn’t require drilling holes or complicated tools.

You can purchase our high-quality fabric casement window kit directly on our website at www.itsonelectric.com. We’ve designed it for a perfect fit and simple installation to help you stay cool and comfortable all summer long.

Looking for a replacement hose or extension? You can find those HERE on our website!