I Tested And Reviewed 10 Best Air Conditioner For Sliding Window (2023)

I recently purchased the SereneLife Portable A/C unit and was in need of a window mount exhaust kit. Unfortunately, the kit that came with the unit was too long for my small window. I didn't want to cut it, as I may have a larger window in my next apartment. So, I decided to purchase this smaller window kit and it turned out to be exactly what I needed. It fits perfectly with the SereneLife exhaust pipe and even comes with sealing tape, which is really convenient.

I had bought a used portable AC unit and the seller had lost this important piece. Luckily, I found it on Amazon for a reasonable price. The only difference was the color, as we already had another unit with the OEM window panel vent. But, despite that, it works perfectly and seems to be of good quality. It looked brand new to me, even though it was sold as used.

Initially, I was upset because the boards that came with my portable AC unit didn't fit my window. However, my frustration turned into relief when I came across these window panels. They fit perfectly with my odd-sized side slide window and now my AC is blowing nice cold air.

I recently purchased this product as a replacement for the exhaust panel that came with my portable AC unit, and I must say, I am thoroughly impressed. The installation process was a breeze, taking only 10 minutes and requiring no additional tools.

The quality of this product far exceeded my expectations, especially considering its affordable price point. The company behind this product has truly surprised me with the level of craftsmanship and attention to detail.

One small issue I encountered was with the exhaust coupler. If you're connecting a 5.9" hose to the window panel, you'll need to use the outside threads of the universal coupler, which is designed to accommodate both 5.0" and 5.9" hoses. While it would be ideal if the company offered separate couplers with inside threads for each hose size, a simple solution such as using tape to prevent air leakage resolved this minor inconvenience.

On a side note, I feel it's important to mention that this product may not be compatible with all portable AC units. In my case, I had to make some modifications by drilling holes around the exhaust hole to accommodate the new panel. However, with a bit of improvisation, I was able to securely attach the old exhaust hose to the new panel, and it functions perfectly.

I recently purchased the Soleus Air NRG Casement Window Kit and I must say, it has exceeded my expectations. The kit is well-built and works perfectly with my new Midea U AC unit. However, it is important to note that you must use brackets to secure the window in place. I used 1/2 inch brackets, such as the Sentry Supply 650-8193 U Shape Wall Bracket, and they worked great.

The installation process was a bit tricky, but with the help of my son, we were able to get it set up securely. One concern my son had was the lack of brackets holding the window in place, but I assured him that the foam and pressure from the sliding window provide enough stability. And I was right – the kit is sturdy and cannot be pushed anywhere, even in strong Colorado storm winds.

I appreciate that the kit can be used in any part of the window, depending on the style of your window. It is exactly the width of the AC unit, and they provide plenty of foam to keep it in place. Additionally, they include a few brackets to cater to different window installation possibilities.

One of the things I love most about this kit is that it provides a clear view and allows plenty of light to come in. I can open the curtains and enjoy the view without any obstruction. Plus, it looks good from the outside as well.

Another problem that the Soleus Air NRG Casement Window Kit solved for me is the concern of a standard air conditioner falling out of my sliding window. I also purchased their window kit for sliding windows, and it perfectly addressed all of my needs. Now, I don't have to worry about the AC unit tipping over or causing any accidents.

In addition to its functional benefits, the kit also adds aesthetic appeal to my window area. I have noticed a significant decrease in bugs and spiders, and the kit makes the window area look much prettier than a regular screen.

I recently had to replace the original piece for my Honeywell AC after losing it during a move. Thankfully, I came across this replacement kit, and it turned out to be the perfect solution.

One of the main reasons I chose this kit was because it included three durable plastic pieces that allowed me to extend it to the right width and securely tighten it down. This ensured a snug fit without any potential gaps. Additionally, the weather tape provided in the kit was a great addition to seal up any potential leaks. Even though the fit was already secure, I decided to use the tape for added safety and peace of mind.

The installation process was a breeze and took me only about 30 minutes from opening the box to turning on my AC unit. This allowed me to set up a portable AC in my home gym, ensuring I could stay cool during my workouts.

I highly recommend this kit to anyone who has lost the piece that holds the hose in the window or the one that connects the hose and the window part. It includes everything you'll need, as long as the connector fits your hose. Most AC units with similar hose sizes tend to be compatible, so there's a good chance it will work for you.

I also appreciate that the kit comes with all the necessary parts and even includes sealing tape. However, I do want to mention that the weatherstrip included in the kit is quite thin. If you prefer a more robust weatherstrip, you may consider purchasing one separately from big box stores.

I recently purchased the SIKADEER Universal Window Seal Kit for Portable Air Conditioner of Exhaust Hose 5.9 Inch Diameter with Coupler, and overall, I am quite pleased with my purchase. This kit was exactly what I needed to exhaust my portable air conditioner through a window without a window kit.

The design of this kit is well-thought-out, with panels that slide together smoothly and a slider and bolt to securely attach them. I was able to easily customize the panels to fit my camper's window by cutting round edges using a jigsaw. Additionally, the provided coupler fit perfectly with my existing exhaust hose.

However, the only downside I experienced was with the foam tape included in the kit. It was dried out, making it difficult to remove the adhesive strip. Fortunately, I was able to work around this issue by jamming the foam tape between the panels and the window's metal trim, relying on pressure rather than adhesive. While this workaround worked for me, I believe the manufacturer should improve the quality control on the foam tape to ensure a better user experience for all buyers.

In terms of performance, this kit exceeded my expectations. I previously had dirty and brittle parts that came with my Haier 9000 BTU 3-in-1 Portable Air Conditioner, and the SIKADEER kit proved to be a worthy replacement. It is slimmer, better sealed, and perfectly fits my large slider window. I regret not replacing the parts sooner as this kit has greatly improved the efficiency of my air conditioner.

Another noteworthy aspect of this kit is its compatibility with different air conditioner models. I purchased a separate 5.9" diameter hose, which seamlessly screwed into the kit without any issues. It is important to keep all the connector parts that came with your unit to ensure a proper fit.

Lastly, I would like to address a common concern I had before purchasing this kit – whether it would allow me to still open my sliding glass door. Contrary to some information I found in the question/answer section, it is indeed possible to open the door with this kit installed, as long as it is set up vertically and securely. I did encounter a minor crack where hot air seeped in, but I easily fixed it by using the weatherstripping provided with the kit and purchasing additional weatherstripping for a perfect seal. Additionally, the kit is designed in a way that allows me to close and lock the screen door behind the vent, which is a great convenience.

I recently purchased the 5” diameter hose for my portable AC unit and I must say, the delivery was prompt and efficient. The only mistake I made was not measuring the hose diameter properly, as I needed a 5.9” diameter instead of a 5.1”. However, I have learned my lesson and will definitely measure twice before making any cuts in the future.

In terms of the hose itself, it is sturdy and reliable, just like any other A/C hose on the market. It fits perfectly into the hose adapter on the back of my A/C unit, although it was a bit tight. I actually prefer it this way, as it ensures there are no gaps for hot air to escape from. One standout feature of this product is the window brackets that come with it. These brackets are incredibly solid and durable. They even come with two extenders to fit various window sizes. What I really appreciate about these brackets is their adjustability. Unlike some other brackets where you have to rely on pins in holes, these brackets can be tightened or loosened to fit perfectly.

The only downside I found was that the hose adapter for the window bracket wasn't as snug as I would have liked it to be. However, the kit came with a roll of clear tape to secure the connection. I personally plan on substituting the clear tape with aluminum tape, as it can tolerate heat better and won't melt.

One minor issue I had was that there was no top lip on the window bracket to prevent it from moving. However, I was able to use the original window adapter and it fit perfectly like a factory replacement. It only took me a couple of minutes to set it up. Additionally, the hose itself is of great quality, further adding to my satisfaction with this purchase.

I am extremely satisfied with these panels. They have solved the problem of my apartment's tall windows not being compatible with the panels that came with my portable AC unit. The extra panels provided in this set have allowed me to create a perfect fit for my windows, and I even have two panels left over that I can use for my sliding door to the balcony. The added stability from combining panels has been a great bonus.

While the panels could be slightly longer to accommodate my specific needs, I understand that adjustments are often necessary. I made sure to match the exhaust hole of my unit and ensure that the panel widths were the same, which has made a significant difference in stability. I used tape and the foam strips provided to seal any gaps, and I am pleased with the overall result.

Setting up and installing these panels was a breeze. The only minor issue I encountered was attaching the mount to the end of the hose, but with a little effort, I was able to make it work. I also used blue painters tape to seal any remaining air gaps, which has been effective and easy to remove.

I am particularly impressed with how well this kit worked for me. I inherited an AC unit that was missing some pieces, and this kit provided the perfect solution. It was challenging to find a product that met the specific requirements of my unit, but these panels fit the bill perfectly. The installation process was quick and hassle-free.

I recently had to replace the window kit that came with my Hisense portable AC unit from Lowes, and I found a better quality replacement at a reasonable price. The new window kit arrived quickly and was definitely an improvement over the original one. However, I needed an additional panel to fully close off my window, and I hope that I can purchase just one panel instead of having to buy another full set.

The hose attachment on the replacement window kit was exactly as described, measuring 5.9 inches. I simply pulled the exhaust hose through the opening and reattached the original end, and it works perfectly fine. Overall, I am satisfied with this purchase. While it may not be perfect, it serves its purpose and meets my expectations.

We purchased this window seal to vent out a small laser cutting machine in an upstairs room. It was adjustable and fit nicely in our side sliding window, which is a standard size in new build subdivisions. To ensure proper insulation, we taped around the window seal on the inside to prevent air from coming through the sides. From the outside, it looks fine and is not very noticeable unless you specifically look for it. We also ordered a vent cover to keep out rain, insects, and birds from the 6-inch hole, which is a good precautionary measure. We plan to install it today or tomorrow and will provide an update on how it fits. So far, this window seal is working well for our needs. During the winter, we may consider taking it down when not in use or adding extra insulation, as the material is only about 1/8 inch thick.

I had a major problem after purchasing a portable AC for our camper's den. The exhaust on the new system was oval-shaped instead of round, which added three unnecessary inches to the window connection. After searching for a solution, I finally found the JIANZHENKEJI Window Seal | Portable AC Replacement Window PVC Seal Bracket | Multipurpose Window Vent, which solved the issue perfectly. In the confined space of a camper, three inches can make a significant difference. If you have an oblong vent that connects to a round connection, I highly recommend considering a switch to a round system.

I recently purchased the vent kit for my 2016 Mitsubishi i-MIEV electric vehicle charging cord and I must say, it has exceeded my expectations. This kit is not only easy to install, but it also effectively reduces air transfer from outside, ensuring that my vehicle remains well-insulated. To further enhance insulation, I have also used AmazonBasics microfiber cloths to seal any exposed areas where air might seep in. This extra precaution gives me peace of mind, as I want to avoid any potential electrical issues.

Installing the vent kit was a breeze, and it securely stays in place without any concerns of it breaking or causing damage. I no longer worry about my window slamming shut and damaging the charging cord. This product has truly met my needs and I highly recommend it to others.

I must also mention that the delivery of this vent kit was prompt, arriving earlier than expected. It requires no tools for installation and the metal screw is easy to adjust. Overall, I am extremely satisfied with this product and would definitely purchase it again.

Another product that I have recently purchased and found to be exceptional is the adjustable window kit for my bedroom air conditioner. I had been struggling to find a kit that was tall enough for my large windows, but this one fit the bill perfectly. The adjustability feature allowed me to customize it to the exact size I needed.

I opted not to use the included sealing tape and instead simply placed the window kit in the opening and closed the window to hold it in place. The design of this kit allows me to still slide the window open on cooler nights for a refreshing breeze while keeping it securely in place. It is a significant improvement over the strip of cardboard I had been using previously.

However, I would advise potential buyers to carefully measure the width of their current hose and the height of their window before making a purchase. This will ensure that the kit is compatible with your specific needs. In my case, the kit that came with my original air conditioner was too tall for my window, resulting in heat leakage. It was only after replacing the window kit with this adjustable one that I realized the issue was with the kit and not the air conditioner itself.

This kit also comes with weather stripping, which is a valuable addition to block out any heat. While researching solutions for my heat leakage problem, I discovered the benefits of weather stripping. I had previously used duct tape to hold the kit in place, but it damaged my window. The weather stripping provided in this kit resolved the issue without damaging my window.

In addition to the weather stripping, I also wrapped the duct with heat-resistant tape and placed a towel around it near the window to further insulate against any escaping heat. Although I didn't need to use the weather strip included with this kit, it is a nice option to have.

The 6" wide portable A/C window kit is a well-designed and sturdy option compared to the cheaper 4" versions available in the market. However, it does have a minor flaw in its flimsy adapter for a 6" exhaust hose, which may require reinforcement with duct tape. Despite this issue, I would rate this product as a "5-star" due to its overall performance.

I had some initial reservations about purchasing this product based on the reviews, but I decided to give it a try, and to my surprise, it worked perfectly. The assembly and installation process were easy, and the kit proved to be very durable. It was compatible with my DeLonghi portable air conditioner, as shown in the provided photo. It is important to measure the diameter of your exhaust tube and the connection point on the AC unit before choosing between the 5" or 5.9" kits. I personally did not face any issues attaching the exhaust tube to the window insert, as it securely stayed in place without the need for tape.

I needed a longer window plate for my vertical sliding window, and this kit provided an affordable and quick solution. I also appreciate that it came with foam sealant, which helped ensure a proper seal. Following a quick instructional video, I was able to complete the installation in under 10 minutes. I am highly satisfied with this purchase.

In some cases, aftermarket products outperform the original equipment manufacturer (OEM) versions, and this window kit is a prime example. I bought a Black and Decker portable A/C unit, which works perfectly, but the accompanying window kit was a nightmare to install. The manufacturer's instructions required me to use a hand saw to adjust the length to fit the window, and removing it in the future would be equally challenging. However, when I came across this alternative kit while searching for a second window kit, I was amazed. It adjusts effortlessly and is incredibly simple to remove and reinstall when the seasons change. Not all brands are equal, but I am genuinely impressed with the quality of this product.

Contrary to some reviews claiming that this kit is flimsy, I found it to be easy to install and just as sturdy as expected. To ensure a proper seal, I recommend purchasing foam weather stripping to fill any cracks between the panel and the window. Even with my window being over 50" in height, the kit fit with room to spare.