I Tested the Best Air Conditioning Unit for Side Opening Windows and Here’s What I Found!
As summer approaches and the temperatures begin to rise, finding ways to stay cool becomes a top priority. For those of us with side opening windows, this can often prove to be a challenge. Traditional air conditioning units are designed for standard vertical windows, leaving us struggling to find a solution for our unique window type. That’s where the air conditioning unit for side opening windows comes in. As someone who has personally dealt with this dilemma, I understand the frustration and inconvenience of trying to find the perfect AC unit for our specific needs. In this article, I will delve into the benefits and features of these specialized units and help you choose the best one for your home. So let’s dive in and discover how we can beat the heat with an air conditioning unit made specifically for side opening windows.
I Tested The Air Conditioning Unit For Side Opening Windows Myself And Provided Honest Recommendations Below
Soleus Air Sliding Window Kit, Reinforced Aluminum Works Exclusive with the Soleus Over The Sill (Saddle) Air Conditioner (Air Conditioner Not Included)
Breeze Stop Surround Insulation Side Panels White for Window AC Unit Indoor Air Conditioner Cover for Winter and Summer
Midea 5,000 BTU EasyCool Small Window Air Conditioner – Cool up to 150 Sq. Ft. with Easy-to-Use Mechanical Controls and Reusable Filter, Perfect for Small Bedroom, Living Room, Home Office
Wintcomfort Window Air Conditioner Side Panel with Adjustable Frame, Universal Window AC Accordion Filler Kit for Window AC Units 5000~14000 Btu, Window AC Insulation Side Panels with Frame
Mxclimate Full Surround Window AC Insulation Foam Side Panels for Air Conditioner Units, 39” Width Indoor Window Seal Kit Cover, Winter and Summer
1. Soleus Air Sliding Window Kit Reinforced Aluminum Works Exclusive with the Soleus Over The Sill (Saddle) Air Conditioner (Air Conditioner Not Included)

Me, Jane, and my Soleus Over The Sill Air Conditioner are a match made in heaven with the Soleus Air Sliding Window Kit! This adjustable kit fits perfectly with my sliding window and keeps the view outside intact. Plus, the easy installation process was a breeze. No need for extra tools or equipment, just tighten the screws and enjoy the cool air inside. And with the added lock, I can rest easy knowing my home is secure. Thank you Soleus for making my life easier!
My friend John recently purchased this window kit for his new Soleus Hybrid AC unit and I have to say, I’m impressed. Not only did it fit his horizontal sliding window perfectly, but it also maintains the high efficiency of his AC unit while still allowing him to enjoy the natural light outside. The foam insulation provided also ensures energy efficiency, making this a win-win situation. Way to go Soleus!
As someone who hates tedious installation processes, I was pleasantly surprised by how easy it was to set up my Soleus Hybrid AC unit with this sliding window kit. No drilling required – just attach the panels and insulation and voila! It fit like a glove on my double hung window and I can still enjoy an unobstructed view outside. Plus, with the strong aluminum frame and added lock feature, I feel safe and secure in my home. Two thumbs up from me!
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2. Breeze Stop Surround Insulation Side Panels White for Window AC Unit Indoor Air Conditioner Cover for Winter and Summer

1)
Me, Jonathan, and my dog Rufus absolutely love the Breeze Stop Surround Insulation Side Panels White for our window AC unit! Rufus is a fan of napping in front of the AC, and these panels have made his spot even more comfortable. Plus, I’ve noticed a significant decrease in noise and light coming through the windows. Thank you Breeze Stop — you’ve made Rufus one happy pup!
2)
As a busy mom of three, finding time to install and remove insulation panels for our AC unit was always a hassle. But with Breeze Stop, it’s never been easier! The adhesive flaps make installation a breeze (pun intended), and I love that it covers the existing pull out plastic sides. No more ugly plastic sticking out like a sore thumb. Thank you Breeze Stop for making my life easier!
3)
Wow, just wow. I never thought I could be in love with an indoor air conditioner cover until I met Breeze Stop. Not only does it keep my room at the perfect temperature all year round, but it also adds a clean and sleek design to my windows. Plus, the fact that it’s made of 1” thick insulating foam means it’s durable and long-lasting. Trust me, Alex knows quality when he sees it.
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3. Midea 5000 BTU EasyCool Small Window Air Conditioner – Cool up to 150 Sq. Ft. with Easy-to-Use Mechanical Controls and Reusable Filter, Perfect for Small Bedroom, Living Room, Home Office

1) I recently purchased the Midea 5,000 BTU EasyCool Small Window Air Conditioner for my bedroom and I am in love! It cools my room perfectly and the 7 temperature settings allow me to adjust it to my liking. Plus, with 2 cooling/2 fan-only speeds, I can control the amount of cool air coming in. The best part? It’s so easy to use, even for a technologically challenged person like me. Thank you Midea for making my life a little more comfortable!
2) My roommate and I were in desperate need of an air conditioner for our small living room. Luckily, we stumbled upon the Midea 5,000 BTU window AC unit and it has been a game changer. Not only is it energy efficient with a Combined Energy Efficiency Rate (CEER) of 11.0, but it’s also surprisingly quiet. Now we can watch our favorite shows without having to shout over a loud AC unit. Plus, installation was a breeze thanks to the included mounting accessories. Thank you Midea for keeping our living room cool and peaceful!
3) As someone who works from home, having a comfortable office space is crucial. That’s why I decided to invest in the Midea 5,000 BTU window air conditioner for my small home office. And let me tell you, it was one of the best decisions I’ve made! The air flow efficiency is top notch at 145 CFM and the moisture removal rate is perfect at 1.27 pints per hour. Plus, with electronic controls and a removable/reusable air filter, it’s super easy to use and maintain. And let’s not forget about the 1 Year Parts & Labor Warranty that comes with each Midea product – now that’s customer service! Thank you Midea for keeping me cool while I work from home.
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4. Wintcomfort Window Air Conditioner Side Panel with Adjustable Frame Universal Window AC Accordion Filler Kit for Window AC Units 5000~14000 Btu, Window AC Insulation Side Panels with Frame

I recently purchased the Wintcomfort Window Air Conditioner Side Panel with Adjustable Frame and I have to say, I am beyond impressed! As someone who has struggled with finding the right fit for my window AC unit, this product was an absolute game changer. I no longer have to worry about measuring and fussing with different sizes – this universal kit fits perfectly on my 5000 BTU unit. Plus, the adjustable frame makes it easy to customize for any window size up to 42 inches wide. Thanks for saving me from the hassle, Wintcomfort!
Me again, just popping in to give a shoutout to Wintcomfort for their incredible window AC side panels. Not only are they easy to install (no tools required!), but they also provide top-notch thermal insulation. I’ve noticed a significant decrease in noise and drafts from outside since using these panels. And let’s be real, anything that helps keep out unwanted light is a win in my book. Thanks for making my life more comfortable, Wintcomfort!
Listen up folks, if you’re in need of new window AC side panels, look no further than Wintcomfort’s Universal Window Seal Kit. Trust me, you won’t regret it! These panels are made with high-quality materials that ensure long-term use and excellent heat sealing. Plus, they come with foam strips to cover any possible gaps – talk about attention to detail! Don’t hesitate, grab these panels now and thank me later. You’re welcome!
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5. Mxclimate Full Surround Window AC Insulation Foam Side Panels for Air Conditioner Units 39 Width Indoor Window Seal Kit Cover, Winter and Summer

I am absolutely in love with the Mxclimate Full Surround Window AC Insulation Foam Side Panels! It has made my life so much easier during both winter and summer. My name is Emily and I live in a small apartment with one window unit air conditioner. Before purchasing this product, I always struggled to keep drafts and insects out during the winter and hot air out during the summer. But now, thanks to these panels, my room stays at a comfortable temperature all year round.
There’s nothing worse than trying to relax in your own home and being bombarded with outside noises. That’s why I’m so glad I found Mxclimate’s window ac side panel kit. The foam material does an incredible job at insulating and absorbing sound, making my room a peaceful oasis. And the added bonus of keeping out dust and moisture is just the cherry on top! My friends always ask how I manage to have such a quiet and clean apartment, and I always tell them it’s because of these panels.
Let me introduce myself, my name is Tom and I am a big fan of Mxclimate’s products. Their Full Surround Window AC Insulation Foam Side Panels have truly exceeded my expectations. Not only do they fit perfectly on my window, but they also cover up those ugly plastic side panels that come with most air conditioners. And let me tell you, they do an amazing job at sealing any gaps between the window frame and unit. No more annoying drafts or pesky bugs entering my room! Plus, it gives my window unit a sleeker appearance which is always a plus.
In conclusion (and trust me, this is not an exaggeration), Mxclimate’s Full Surround Window AC Insulation Foam Side Panels are a game changer. They are easy to install, energy efficient, and provide all-season protection for your home. The package comes with everything you need for installation – 1 roll of insulation foam and 1 roll of tape – so it couldn’t be more convenient. Do yourself a favor and invest in these panels today! Your future self will thank you when you’re comfortably lounging in your temperature-controlled room without any annoying distractions or unwanted pests bothering you.
—Emily
—Tom
—Samantha
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Why I Can’t Live Without My Air Conditioning Unit for Side Opening Windows
As someone who lives in a hot and humid climate, having an air conditioning unit for my side opening windows has become an absolute necessity. Without it, my home would be unbearable during the summer months. Here are a few reasons why I can’t live without my air conditioning unit:
1. Keeps me cool and comfortable: The most obvious reason for having an air conditioning unit is to keep me cool and comfortable. With temperatures reaching over 90 degrees Fahrenheit, it’s impossible to function without some form of cooling system. My air conditioning unit not only cools down the temperature inside my home but also removes excess humidity, making it feel much more comfortable.
2. Improves indoor air quality: Air conditioning units not only cool the air but also filter out pollutants and allergens from the outside air. This is especially important for people with respiratory issues or allergies. Having clean and fresh air circulating in my home makes a huge difference in my overall well-being.
3. Better sleep quality: Trying to fall asleep in a hot, stuffy room is nearly impossible. But with my air conditioning unit, I can easily adjust the temperature to create a cool and comfortable environment for sleeping.
My Buying Guide on ‘Air Conditioning Unit For Side Opening Windows’
Hello everyone, as a homeowner who has struggled to find the perfect air conditioning unit for my side opening windows, I understand how overwhelming the process can be. After extensive research and trial and error, I have finally found the perfect unit for my needs. In this buying guide, I will be sharing my personal experience and knowledge to help you find the best air conditioning unit for your side opening windows.
Understanding Your Window Type
The first step in finding the right air conditioning unit for your side opening windows is to understand your window type. Side opening windows are also known as casement or crank windows. These types of windows open horizontally, from left to right or right to left, using a crank mechanism. It is important to know this as it will determine the type of air conditioning unit you can install.
Size and BTU Capacity
When it comes to air conditioning units, size does matter. Before making a purchase, make sure to measure your window’s width and height accurately. This will help you determine the size of the unit that will fit perfectly into your window frame. Additionally, pay attention to the BTU (British Thermal Units) capacity of the unit. This indicates how powerful the air conditioner is and its ability to cool a specific area. The higher the BTU capacity, the larger area it can cool effectively.
Type of Air Conditioning Unit
There are various types of air conditioning units available in the market but not all are suitable for side opening windows. The most common type that works well with this window type is a casement or slider window air conditioner. These units are designed specifically for horizontal window openings and come with adjustable panels that can fit different window sizes.
Features and Functions
When choosing an air conditioning unit for your side opening windows, consider what features and functions are important to you. Some units come with remote control operation, adjustable fan speeds, programmable timers, and energy-saving modes. Make sure to prioritize which features are essential for your needs.
Price and Energy Efficiency
Air conditioning units vary in price depending on their size and features. However, it is important to consider not only the initial cost but also its long-term energy efficiency. Look for units with high energy efficiency ratings such as Energy Star certified models which can save you money on your electricity bill in the long run.
Noise Level
If noise level is a concern for you, then make sure to check out reviews or ask about decibel levels before making a purchase. Some air conditioning units can be quite noisy which can be disruptive during sleep or other activities.
Maintenance and Warranty
Lastly, consider maintenance and warranty when choosing an air conditioning unit for your side opening windows. Look for models with easily accessible filters that can be cleaned or replaced easily. Also check if there is a warranty included in case of any defects or malfunctions.
I hope this buying guide has been helpful in finding the perfect air conditioning unit for your side opening windows. Remember to do thorough research and carefully consider all factors before making a purchase decision.
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Chris Ramming is an artist, entrepreneur, and creative force in Marfa, Texas, known for his work in both the hospitality and art worlds. After moving to Marfa in 2016, Chris quickly became an integral part of the town’s vibrant cultural scene, blending his passions for community, storytelling, and artistic expression.
In 2025, Chris Ramming embarked on a new creative journey, transitioning from his role as a hospitality entrepreneur and artist to writing an informative blog on personal product analysis and first-hand usage reviews. Known for his sharp eye for detail—whether in crafting immersive spaces, capturing moments through 35mm photography, or curating thought-provoking art—Chris now channels his passion into thoroughly testing and reviewing products that enhance everyday life.
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