Are you searching for a good casement window air conditioner or sliding home window AC unit because that vertical home windows in her home?

If so, this guide is because that you.

You are watching: Portable ac for windows that open sideways

We’ll take it an comprehensive look at some of the finest casement window air air conditioning on the market and also the ideal sliding home window air conditioners that occupational for both short and tall windows. We’ll also suggest out the top features each one has.

In enhancement to this vertical window air conditioner reviews, you’ll also discover just how these renowned appliances actually work-related to cool down a room and around the various species you can select between.

By the end, you will do it have everything you need to make a well-informed decision on buying the ideal vertical window air conditioner because that your residence or apartment.

Table the Contents

Best Casement & Sliding window Air Conditioner evaluate (Top 10 List)Vertical window Air Conditioner purchase GuideTypes that Vertical window Air ConditionersFeatures come Look because that in a Casement/Sliding home window Air ConditionerCommon Questions around Vertical window Air Conditioners

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Casement & Sliding window Air conditioners Reviewed in this Guide

Here’s a rapid comparison chart mirroring the top casement & sliding home window air conditioners. We’ll cover each facet of these units in the reviews ar below, but this gives you one idea that what’s accessible and one easy way to to compare them.

ImageAir Conditioner DetailsPrice
Frigidaire FFRS0822S1 Casement/Sliding home window Air ConditionerBest overall Air Conditioner8,000 BTU output350 square feet coverageCheck Price
Koldfront CAC8000W Casement/Sliding home window Air ConditionerBest for small Rooms8,000 BTU output350 square feet coverageCheck Price
Frigidaire FFRS1022R1 Casement/Sliding window Air ConditionerBest for Mediums size Rooms10,000 BTU output450 square feet coverageCheck Price
Whynter ARC-14S Vertical/Sliding window Air ConditionerBest for huge Rooms14,000 BTU output500 square feet coverageCheck Price
Whynter elite ARC-122DHP Vertical/Sliding home window Air ConditionerBest wait Conditioner v Heat12,000 BTU output400 square feet coverageCheck Price
Rollibot ROLLICOOL Vertical/Sliding window Air ConditionerBest Wi-Fi air Conditioner10,000/12,000/14,000 BTU output275/325/375 square feet coverageCheck Price
PerfectAire 3PASC10000 Casement/Sliding home window Air ConditionerPopular Brand because that Casement Windows10,000 BTU output450 square feet coverageCheck Price
Global commercial Casement/Sliding home window Air ConditionerGood budget Air Conditioner10,000 BTU output450 square feet coverageCheck Price
Serenelife SLPAC10 Vertical/Sliding home window Air ConditionerHas the many options10,000/12,000 BTU output350/450 square feet coverageCheck Price
Black + Decker BPACT08WT Vertical/Sliding window Air ConditionerGood for small Rooms8,000 BTU output150 square feet coverageCheck Price

Best Casement & Sliding home window Air Conditioner evaluate (Top 10 List)

1. Best overall Casement/Sliding window Air Conditioner: Frigidaire FFRS0822S1


First up on our perform is a vertical air conditioner that fits well right into casement windows as well as sliding windows.

We consider this the ideal casement home window air conditioner since it meets most people’s requirements when it involves an reliable vertical AC unit. It also impresses ~ above price, room size coverage, and has some great air cooling features.

You can properly cool a dimension room up to 350 square feet, many thanks to the decent calculation of 8,000 BTU.

The three fan speeds enable you to select how much airflow you need right into the room and also you can select a an accurate degree top top the thermostat. A remote control is additionally included.

Easily open or close the exhaust v a straightforward switch.

It actions 23.5 x 14.2 x 20.2 inches, make it little enough come fit in ~ the majority of casement and also sliding windows.

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2. Ideal for little Rooms: Koldfront CAC8000W Casement/Sliding home window Air Conditioner


The Koldfront CAC8000W is our choice for the finest sliding home window air conditioner and casement AC unit for small rooms.

Similar to our #1 review, this vertical air conditioner has actually 8,000 BTUs out cooling output and also can manage a room approximately 350 square feet.

This model procedures 23.5 x 14.5 x 20.88 inches.

Just save in mind that your window should have actually a minimum height of 21.25 inches as soon as using a home window panel retainer and also 20 5/16 customs if you’re not making use of one.

There space plenty that impressive functions that come along with this waiting conditioner such as a digital display, dehumidifier, sleep mode, far control, and also three fan speeds.

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3. Best for medium Size Rooms: Frigidaire FFRS1022R1 Casement/Sliding home window Air Conditioner


Next up is the finest casement home window air conditioner because that a medium-sized room.

It’s crucial to recognize how numerous square feet your room is so the you don’t buy a unit it is too big or too small for the space.

The output of this model is 10,000 BTUs, meaning that that is perfect for rooms measuring approximately 450 square feet.

The dehumidification setup can eliminate up come 3.4 pints per hour, do this wonderful option for dwellings with high humidity.

Take advantage of the 24-hour timer and full-function far to ensure that your AC unit is giving you the many convenience the you need.

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4. Finest for large Rooms: Whynter ARC-14S Vertical/Sliding window Air Conditioner


The Whynter ARC-14S is the finest vertical home window air conditioner for huge rooms. The calculation of 14,000 BTUs enables this unit come cover locations up come 500 square feet.

Window-mounted units like our first three reviews just come in 2 sizes: 8,000 and also 10,00 BTUs. Therefore if you need something an ext powerful come cover larger areas, climate you’ll desire to obtain something favor this.

The Whynter wait conditioner is one award-winning portable air conditioner that doesn’t require long-term installation. Simply affix the two hoses on the earlier to the included home window slider kit and place it right into a sliding window. This setup will certainly exhaust warm air as the unit runs.

The dehumidifier mode can remove approximately 71 pints that moisture each day.

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5. Ideal with Heat: Whynter upstream ARC-122DHP Vertical/Sliding home window Air Conditioner


The Whynter elite ARC-122DHP is the exact same brand as our #4 top pick yet has the added benefit of heater in addition to waiting conditioning.

The added heat choice on an air conditioner makes it much more efficient and also useful as you deserve to use it all year round quite than only throughout the sexy months.

With an calculation of 12,000 BTUs, this vertical AC unit have the right to cover an superior amount of room up come 400 square feet. This is an effective enough to use in a huge bedroom, sunroom, or kitchen.

Enjoy a 24-hour timer and full manage over your thermostat, v a range of 61°F – 89°F because that cooling and also 61°F – 77°F because that heating.

And choose our ahead review, this AC unit because that horizontal sliding home windows comes in a portable design with a behind hose and window adapter kit.

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6. Ideal with Wi-Fi: Rollibot ROLLICOOL Vertical/Sliding window Air Conditioner

The Rollibot ROLLICOOL is just one of the best sliding home window air conditioners on the market when it concerns every factor: clever Wi-Fi control, no have to permanently download it right into the window, portable where you need AC the most, and also much more.

This portable air conditioning unit additionally comes in three various sizes so that you can choose the finest option for your space:

The Wi-Fi capabilities enable you to manage the air conditioner on your smartphone or tablet, from all over in the world. This can be useful for the sexy days when you desire to rotate your AC unit on before you obtain home so that you can walk right into a fresh air-conditioned space.

You can also collection up personalized cooling schedule throughout the mainly so that the waiting conditioner runs automatically for you.

It really is the ideal casement home window AC unit and also sliding window air conditioner v smart controls the you’ll find today.

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7. Popular Casement window Air Conditioner Brand: PerfectAire 3PASC10000

The PerfectAire 3PASC10000 is from a really popular brand that constantly seems come be marketing out quickly. For this reason if you’re interested in this casement window air conditioner, climate you must buy the while you can.

This AC unit have the right to cover as much as 450 square feet thanks to the 10,000 BTU output.

It deserve to be offered for both sliding or casement windows thanks to the expandable home window mounting kit that comes contained in the box.

With three fan speeds, you have the right to turn increase or down the cooling strength as you need. It additionally has an automatic fan speed setting that works v the inner thermostat to change itself because that maximum cool efficiency.

An power Save setting is likewise included because that lower electricity usage. Plus, an imaginative “Follow Me” attribute turns her remote into a portable thermostat. That feature alone makes it the best vertical window air conditioner for numerous people.

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8. Good Budget Sliding window Air Conditioner: worldwide Industrial

If you don’t want to invest a lot of money top top an air conditioner because that horizontal sliding windows or casement windows, climate the worldwide Industrial unit could be the ideal option for you.

Along through the impressively low price friend can advantage from the an excellent room size coverage the 450 square feet thanks to the 10,000 BTU output.

There room plenty the user-friendly functions to take advantage of together well, consisting of a sleep mode, auto restart, 24-hour timer, and Follow Me remote that acts as a portable thermostat.

Like ours previous review, this model likewise includes an power Saver duty for short electricity costs without sacrificing her cooling comfort.

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9. Optimal Vertical window Air Conditioner with the most Options: Serenelife SLPAC10

Options are invaluable when it involves air conditioners, lot like most things in life. And the Serenelife SLPAC10 offers you four different models come choose between to gain the perfect vertical window AC unit for your needs.

Being able to pick the BTU output and also the features that you desire your sliding home window air conditioner unit come come with offers you much more customization than any type of other choices on the market.

With the Serenelife SLPAC10 you gain these choices:

No matter which alternative you choose, you can benefit from the strength of a portable air air conditioning unit the can quickly be moved from one room to the other as soon as you require it.

Plus, the automatically swing mode sets the waiting vents up to relocate left and also right for maximum air circulation. This can aid to prevent hot spots that most every room often tends to have.

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10. An excellent Vertical home window Air Conditioner for tiny Rooms: black + Decker BPACT08WT

Another great vertical window air conditioner for tiny rooms is the black color + Decker BPACT08WT. It has 8,000 BTU output and also a coverage the 150 square feet.

It’s good for little bedrooms, offices, and also bathrooms whereby a window air conditioner will certainly not fit.

This sliding and casement home window air conditioner consists of wheels that can be really helpful once transporting the unit from room come room or readjusting that while that in place.

The home window adapter also permits you to install it right into your slide or casement window with ease. Setup and take down deserve to be excellent in a issue of seconds.

As for cooling, this unit combines 3 energy effective functions for your convenience: cooling, fan, and also dehumidification. It likewise has a bucket-less, self-evaporating style that expels accumulated moisture the end the exhaust hose. This makes your living space cool, clean and also dry without any type of effort ~ above your component to maintain it.

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Vertical home window Air Conditioner buying Guide

What is a Casement window Air Conditioner?

A casement home window air conditioner is one that fits into a casement home window rather than a double hung window. A casement home window is the which opens outwards or inwards by a manage on the side of the window and hinges on the various other side.

Casement home window air conditioners are placed vertically fairly than horizontally. Horizontal AC units tend to it is in the norm on the sector which is why that is so essential to make certain that you are purchasing the correct AC unit for her window.

You cannot use a horizontal AC unit in a casement window, and also vice versa.

What is a Sliding home window Air Conditioner?

A sliding home window air conditioner is one the fits in a sliding window or door. The is mounted vertically come fit the open home window space. For this reason, they room often called vertical window air conditioners. However, some people do refer to them as horizontal home window air conditioners because sliding windows open horizontally.

Sliding windows execute not open outwards or inwards, however instead, castle are made up of 2 panels of glass. One of these will certainly slide versus the various other as the is opened up to save space and one aesthetically pleasing look.

There space two varieties of AC devices that friend can select for a sliding window: a vertical window AC unit or a portable AC unit. Fine be looking in ~ both that these choices later in this guide.

Casement window vs slide Window

While both casement windows and also sliding home windows take the same kind of air air conditioning unit, they are still two fully different varieties of windows. Because that starters, sliding windows are broader than they room tall if casement windows room the opposite.

Sliding windows open horizontally while casement windows open by swinging one of two people outwards or inwards. This helps casement windows open up completely, allowing an ext air to happen through into the house. However, with sliding windows, only half of the window will open and also therefore much less air will be able to make its method into space.

Whether you have casement or sliding home windows will count on her property, the room that the windows fill, and also the stylistic design that was offered when creating the build.

Horizontal window Air Conditioner vs Vertical window Air Conditioner

Horizontal home window air conditioners are the traditional models the fit in vertically sliding windows called double hung windows. These are different from vertical window AC systems as they are installed horizontally and are comprised differently.

Horizontal windows will certainly have wider widths and much shorter heights than casement windows, which will have actually thinner widths and taller heights. Sliding windows are still considered vertical windows but they have actually a much an ext substantial width because of the window opening horizontally. This an are is wherein the AC unit will certainly be installed, for this reason manufacturers because that both the these types of devices take this into consideration.

This deserve to be viewed by the standard home window widths for both that these types of units. We’ve listed some of these standard window sizes below to assist you recognize this concept.

Horizontal WindowsVertical Windows
Double-Hung window WidthsSliding home window WidthsCasement home window Widths
24 inches36 inches35 inches
28 inches48 inches47 inches
32 inches60 inches59 inches
40 inches72 inches
44 inches84 inches

As you have the right to see, slide windows have a much wider width than casement home windows or even twin hung windows. Casement windows frequently come with a lot smaller width because they are designed come be higher windows.

So horizontal home window air conditioners will certainly be wider than they room tall. Casement wait conditioners will be taller 보다 they are wide. When you might think that horizontal AC devices would be much better for slide windows, vertical devices are provided instead. This method that they will additionally be taller than they room wide.

Types that Vertical home window Air Conditioners

Vertical window AC Units

Vertical home window units room otherwise well-known as casement window AC units and can be seen on our list in the an initial and 2nd reviews: Frigidaire FFRS0822S1 and also Koldfront CAC8000W Casement/Sliding home window Air Conditioner.

These AC systems are set up into the window and have actually a taller height than their width. They room designed to be preserved within the window frame fairly than being taken out repeatedly. This deserve to be seen with all the hardware that comes v the AC unit to download it permanently top top your home window frame.

Portable home window AC Units

Portable window AC units have the right to be mounted into a home window through a hose, yet they can likewise be removed and used in different places. Portable units deserve to be transported to various locations relying on where you require AC the most.

For high sliding home windows or doors, you have the right to purchase a home window extension kit to do the window adapter longer. Most had kits right standard size windows in between 24 to 40 inches and the expansion can make it right 80 inches for the sliding door height.

You require to select the correct size for her casement or sliding window AC unit, however this way more than simply the measurements of the unit. You also need to think about the BTU output and square footage that the AC unit have the right to cover.

Casement and sliding window air conditioners just come in 2 sizes the output: 8,000 and 10,000 BTUs. These have the right to cover rooms size 350 to 450 square feet.

If you require something smaller or bigger than this, friend should think about a portable air conditioner as these come through a more versatile range of BTU outputs.

Below is a fast table to present you what BTU calculation you’ll likely need depending upon the square footage of the room. Be afflicted with in mind that this is a rough guide as part AC units deserve to cover more or less an are than the BTU output might suggest.

BTU volume for Casement & Sliding window AC Units

Room Area To be CooledBTU volume Needed
up to 350 square feet8,000 BTU
350 come 450 square feet10,000 BTU
450 come 550 square feet12,000 BTU
550 come 700 square feet14,000 BTU

Features come Look because that in a Casement/Sliding home window Air Conditioner

Fan Speeds

Many air air conditioning offer various fan speeds because that you to select from to adjust how numerous RPMs the fan will be working for at any type of given time. To run your fan at a slow speed enables the compressor and also the coil more time to dehumidify the air, rather than just cooling it.

If you were to operation the fan at a higher speed, the air will be cooled faster but less humidity will be eliminated from the air. So, having an AC unit with more fan speeds offers you a far better number of modes to operation your AC unit at.

Energy Saver Mode

An energy Saver setting is constantly worth trying to find when picking the ideal AC unit for your needs because it have the right to reduce her energy intake while still effectively cooling the waiting in her space.

Energy saver mode helps mitigate power consumption by automatically transforming off the circulation fan and also the exhaust fan once the compressor is off. The waiting conditioner will automatically cycle both pan on and also off v the compressor as required for cooling.

This means that the AC unit is not always running, conserving you money in to run costs, and also prolonging the life of your unit as it is not constantly running at maximum capacity continuously.

Exhaust Slider

An exhaust slider is a switch discovered on some vertical wait conditioners. The slider enables you to either close or opens the exhaust.

Opening the exhaust permits air to vent from inside your residence to the outside, allowing more fresh air come come in indigenous outside.

If you keep the exhaust closed; however, that keeps the current air inside her room to continue circulating without brand-new fresh air.

Keeping the exhaust slider open up will enable fresh waiting in, yet your AC unit will need to work harder to cool this brand-new air as it come in. Keeping the exhaust closeup of the door will permit the AC unit to work less as the waiting circulating has already been cooled. However, this might end up being stale and more unpleasant than fresh air.

You’ll should experiment with this function to uncover out which choice you prefer: an opened or closeup of the door exhaust switch.


Most air conditioners will likewise be dehumidifiers as well, together air is drawn through and across a cooling coil the evaporates moisture in the air and also collects it in a bucket. The air is pushed earlier out right into the room, both colder and less humid than it started.

It’s precious looking at how much dehumidification your AC unit have the right to hold before it demands to be emptied. Selecting a version with a bucket the cannot host a large amount of water will not be appropriate for someone living in a high humidity area.

Some air conditioners have an auto-evaporation function that expulsion the built up moisture the end the window so friend don’t need to empty a water collection bucket.

Digital Controls

Digital controls are constantly beneficial once it involves AC units as they permit you to adjust the setups much more accurately than traditional manual rotating dials.

Digital controls likewise often come through an LCD screen that will show you the precise temperature or setting that she running your unit on. Devices without digital controls will certainly not have actually this and also often leaving you guessing at the precise temperature.


A timer enables you to set the waiting conditioner come either revolve on or turn off after a certain amount that time so the you have the right to enjoy the cooled air there is no worrying around running the unit for too long.


A remote regulate is not vital when it come to selecting an waiting conditioner, yet it go come v a lot of of added convenience. You deserve to control all of the setups without having to be near the unit.


More advanced AC systems will have Wi-Fi ability which permit you to control the unit from her smartphone. Some models additionally let you attach the unit to a clever home machine like Amazon Alexa or Google house for voice control.

What is the casement that a window?

The casement is the part of the home window that opens, securing the glass panel in place in addition to a hinge addressed to the home window pane. If a relocating pane of glass does not have actually a hinge, that is thought about a sash fairly than a casement.

How go a casement home window air conditioner work?

A casement window air conditioner works simply like any type of other home window AC unit on the market, by making use of refrigeration nature to expel heat and also humidity native the room while pushing cooled air right into the room to circulate.

The straightforward components of a casement home window AC unit space as follows: a thermostat, a fan, a compressor, a refrigerant, one evaporator coil, and a condenser coil.

The thermostat registers once the room has reached a details temperature and also triggers the fan. The wait from the room is pulled right into the unit and passed end the cooling coil. The waiting is then pushed back into the room, now cooled and rid of few of its initial moisture.

How perform you placed a home window air conditioner in a crank window?

Below are the detailed steps of how to ar a window air conditioner right into a crank window.

Open the home window fully.Remove the screws of the stopper.Use a screwdriver to eliminate the operator control arm native the bracket.Remove the hinge arm by unscrewing the from the window frame.Take off the hinges from the home window frame, being mindful not come drop the casement.Add the mounting brackets with your socket wrench.Position the air conditioner in the home window frame so the the within of the bottom lip is touching the windowsill.Use the mounting brackets to affix the AC unit to the window, making use of the bolts or screws that came with your installation kit.Fill the gaps ~ above either next of the wait conditioner one of two people with cut pieces of hardwood or the side extensions. Secure this to the home window frame.Cover the top and also bottom edges with a foam-rubber sealant to stop drafts. You have actually now placed a home window AC in a crank window.

Can you put an air conditioner in a casement window?

You deserve to put an air conditioner in a casement home window as long as you have actually the correct kind of window air conditioner. It should be either a upright AC unit or portable AC unit with the exactly mounting equipment. You’ll also need come make certain that the wait conditioner is the correct size for your home window so that it fits properly.

Can window air conditioners be an installed vertically?

A home window air conditioner have the right to be an installed vertically as lengthy as you usage a vertical air conditioner type. However, if you have actually a horizontal air conditioner, friend cannot run this top top its side. The materials will not work-related effectively and there is the possibility that the moisture that has actually been evaporated from the air will certainly seep into the interior components and also reduce their lifespan.

Can you install a window air conditioner in a slide glass door?

You can install a window air conditioner in a slide glass door if you mount it properly. You will certainly need material to block the gaps above the waiting conditioner such as lumber or plexiglass.

Can portable wait conditioners work-related in casement windows?

A portable air conditioner have the right to work in a casement home window as lengthy as the window adapter kit is the correct elevation to to the right in the open up casement home window space. Many portable air air conditioning come with home window mounting kits that you deserve to use come fit into the casement window.

What is the most reliable window air conditioner brand?

Frigidaire is the many reliable home window air conditioner brand because that a variety of reasons. The brand has actually been conquering the sector for numerous years now and has never ever released one AC unit that hasn’t carry out well. That is why this brand is extremely sought after.

The brand excels in terms of price, BTU output, and extr features that they offer in home window air conditioners. Frigidaire also offers great warranties for every one of their assets in situation something walk wrong and also is the fault of either the components or labor. They also often offer longer warranties for the sealant mechanism to give you tranquility of mind that your purchase is safeguarded should something go wrong.

How to install a Vertical home window Air Conditioner

Installing a vertical window air conditioner is as simple as installing any type of other air air conditioning unit right into a window. We have provided the steps below for your convenience.

Install the mounting hardware: Unlike horizontal home windows that usage the sash to save the AC unit in place, a vertical unit demands mounting hardware come accommodate this. Download the mounting hardware to the base of the home window or how the manufacturer has actually indicated in the user manual.Align the upright air conditioner: Place the air air conditioning unit in the window so that the mounting hardware is in the correct position to certain the unit. You can want to enlist the aid of one more person right here to make certain that you nothing drop the unit.Secure the unit: Use the hardware to secure the unit in the window. Use all of the hardware that came v your mounting kit come ensure the the unit is as secure as it deserve to be.Fix the window: If you have a slide window, girlfriend should location a block of hardwood or plexiglass between the unit and where the window would generally slide so the no open an are is left.Seal the cracks: Now you need to develop an airtight seal through rubber sealant roughly the parts of the waiting conditioner the touch the window. You additionally need to traction the extenders the end from the AC unit and also secure these onto either side of the window.All done! Once there is an airtight seal, you can turn the unit on and also enjoy a fresh cooled room.

We hope you appreciated this comprehensive guide on choosing and also comparing the finest casement window air conditioners and sliding window AC units.

As friend learned, there room various varieties of vertical home window air conditioners on the industry to meet your needs. Friend can pick the traditional compact home window AC unit or a portable air conditioner for sliding windows and also doors.

The finest sliding window air conditioner for your functions will rely on the size of the window, just how it opens up (vertically or horizontally), and also your budget.

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Hopefully, the information noted here top top the finest vertical home window air conditioners has helped you narrow down the perfect tiny AC unit for your house or apartment at a price you can afford.