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Smart AC Solutions
Window Air Conditioners

What is the Smallest Width Window Air Conditioner

ByRalph P. Sita Updated onFebruary 10, 2025

When looking for a compact cooling solution, the smallest width window air conditioner typically measures 18 inches wide, making it a perfect fit for smaller living spaces such as apartments, bedrooms, and dens. This size is particularly advantageous for windows that cannot accommodate standard air conditioner models, ensuring that even those with limited space can enjoy effective cooling.

The efficiency and power of these units depend on their BTU (British Thermal Unit) ratings, which gauge their cooling capacity, and energy efficiency ratings (EER), which indicate energy consumption. A lower BTU rating offers less cooling power but may lead to energy savings, making these units an economical choice for small rooms. Many models also provide additional features like adjustable fan speeds and remote controls, enhancing their functionality for users in compact areas.

Among the tiniest window air conditioners available, the Frigidaire FFRA0511R1 5,000 BTU 115V Window-Mounted Mini-Compact Air Conditioner stands out. It fits into windows as small as 23 inches wide and 14 inches high, making it an ideal option for spaces where standard units would be too large. This mini air conditioner can also adapt to larger windows, accommodating widths up to 36 inches with its adjustable side panels. Notably, it boasts an Energy Star rating for energy efficiency, alongside a user-friendly digital display for easy operation.

For those in need of a compact cooling solution, sleek models like the Frigidaire FFRA0511R1 offer both functionality and efficiency without compromising valuable space in your home.

What is the Smallest Width Window Air Conditioner

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Page Contents

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  • What is the Narrowest Width for a Window Air Conditioner?
  • Do They Make Air Conditioners for Narrow Windows?
  • What is the Width of a Window Ac?
  • How Do You Install an Air Conditioner in a Narrow Window?
  • 12 Inch Wide Window Air Conditioner
  • 14 Inch Wide Window Air Conditioner
  • Window Too Small for Air Conditioner
  • 10 Inch Wide Window Air Conditioner
  • Narrow Window Air Conditioner
  • 9 Inch High Window Air Conditioner
  • Best Small Window Air Conditioner
  • 13 Inch Wide Window Air Conditioner
  • Next Steps
    • Related Articles

What is the Narrowest Width for a Window Air Conditioner?

Window air conditioners come in a variety of sizes to fit different window frames. The narrowest width for a window air conditioner is usually between 20 and 21 inches. This size is typically ideal for single-hung windows or double-hung windows that have been modified with an extra support bracket.

The actual dimensions of the unit can vary slightly from model to model, so it’s important to measure your space beforehand if you’re looking for the most compact option available. Many models also offer adjustable mounting kits, which allow you to customize the installation and make sure that the AC fits snugly within your opening without any gaps or spaces around its edges. When shopping, be sure to check product specifications carefully as some units may require additional trimming or cutting before they will fit properly into smaller openings.

Do They Make Air Conditioners for Narrow Windows?

Yes, air conditioners for narrow windows do exist! Many manufacturers offer models specifically designed to fit in small or narrow window openings. These AC units are often referred to as “slimline” design because of their slimmer profile compared to a standard unit.

They come in several different sizes and styles, so you can find one that fits your specific needs. If you have an especially tight space like an RV or a tiny apartment, these types of air conditioners are the perfect solution. Not only will they fit into smaller spaces but they also provide efficient cooling power without taking up too much space or energy usage.

Furthermore, many slimline models now come with advanced features such as digital temperature control and thermostat settings making it easier than ever before to maintain comfortable temperatures throughout your home no matter the size of your window opening.

What is the Width of a Window Ac?

Window air conditioners typically range in width from 18 to 36 inches. The size of the window AC unit you need will depend on a few factors, such as the size and shape of your window, the type of cooling system you want (single-hose or dual-hose), and how much space is available for installation. When purchasing a window AC, consider its BTU rating – this determines how quickly it can cool down a room.

If your room is larger than 150 square feet, look for an air conditioner with at least 7500 BTUs. It’s also important to make sure that the width of the unit fits properly in your window frame; if there’s too much gap between the edges of the AC and windowsill or wall then warm outside air can leak into your home. Make sure to measure both horizontally and vertically before buying any new window AC so you get one that fits perfectly!

How Do You Install an Air Conditioner in a Narrow Window?

Installing an air conditioner in a narrow window can be tricky, but it doesn’t have to be a daunting task. The first step is to measure the length and width of your window so you know what size air conditioner will fit best. After that, make sure the area around the window is clear and free from any obstructions before installing your AC.

Next, prepare all of the tools necessary for installation such as screws, angles brackets, caulking gun and tape measure. Most importantly make sure you have someone to help you lift and position the unit into place as it may not fit through any normal opening due to its size. You’ll need to secure mounting brackets or other supports on either side of your window frame with screws or nails which will provide extra stability for your new unit once installed.

Afterward seal up any gaps using suitable weather stripping material or foam insulation strips between the walls and frame of your AC unit ensuring there are no drafts coming in or out which could affect performance efficiency over time. Finally plug in your new AC into an outlet near by making sure it’s securely fitted before turning on power switch located nearby allowing cool air flow throughout your home!

12 Inch Wide Window Air Conditioner

The 12 inch wide window air conditioner is a great option for cooling smaller spaces. It’s perfect for apartments, dorm rooms or office cubicles without taking up too much space. This type of air conditioner can fit into most standard double-hung windows and is relatively easy to install with some basic tools.

Unlike larger central AC units, the 12 inch window AC runs quietly and efficiently while providing excellent energy efficiency ratings that will help keep your electricity bills low.

14 Inch Wide Window Air Conditioner

A 14 inch wide window air conditioner is the perfect solution for those looking to cool smaller spaces without compromising on power or efficiency. This type of AC unit fits into most standard sized windows and offers convenient features such as multiple cooling speeds, remote control operation, and adjustable thermostat settings. Plus, these units are easy to install and maintain, making them a great choice for anyone looking to quickly add some extra chill to their home.

Window Too Small for Air Conditioner

Window air conditioners are designed to fit standard window dimensions, so if your windows are too small for a standard unit, you may have difficulty finding an appropriate air conditioning solution. Fortunately, there are slim and compact models available that can fit into smaller spaces. If you’re unsure whether one of these units will work in your window size, consider measuring the opening and double-checking the manufacturer’s specifications before purchasing.

10 Inch Wide Window Air Conditioner

A 10 inch wide window air conditioner is an ideal cooling solution for smaller spaces. It is easy to install, energy-efficient, and can provide relief from the heat in rooms up to 150 square feet. Since it takes up less window space than traditional AC units, you don’t sacrifice any of your natural light or view while still getting the benefit of a powerful unit that runs quietly and efficiently.

Narrow Window Air Conditioner

Narrow window air conditioners are perfect for those seeking to cool a smaller space without taking up too much room. These units fit easily into most windows and typically come with features such as adjustable temperature control, energy-saving modes, and air filters. Narrow window air conditioners can also be more affordable than larger models, making them ideal for those who want to save money while still keeping their home comfortable during the hot summer months.

9 Inch High Window Air Conditioner

The 9 inch high window air conditioner is a great choice for those looking to cool down an area of their home or office without taking up too much space. This AC unit is designed to fit into standard-sized windows, and it has the ability to quickly cool down any room within minutes. It features adjustable temperature settings, as well as energy efficient technology that can help you save money on your electricity bills.

With its compact size and powerful performance, this window air conditioner will make sure you stay comfortable all summer long!

Best Small Window Air Conditioner

The best small window air conditioner for those with limited space is the Emerson Quiet Kool 8,000 BTU 115V Window Air Conditioner. It’s designed to cool rooms up to 350 square feet and features multiple cooling settings, adjustable thermostat control, an eco-friendly mode that reduces energy consumption by 30%, a 24-hour timer, and sleep mode. The unit also includes an antimicrobial filter which captures dust particles from your room’s air to help reduce allergens in the home.

13 Inch Wide Window Air Conditioner

If you’re looking for a window air conditioner to cool down a small room, a 13 inch wide model may be the perfect size. This unit is designed to fit into most double hung windows and can provide enough cooling power for rooms up to 350 square feet in size. The smaller design also means it’s more energy efficient than larger models, making it an ideal choice for anyone looking to save money on their electricity bill.

Next Steps

If you are in the market for a window air conditioner and have limited space, it is possible to find models with smaller widths. While these units may not be as powerful or efficient as larger models, they can provide just enough cooling for small rooms or apartments. With careful research and comparison shopping, it’s possible to find one that fits your needs without sacrificing too much performance.

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Ralph P. Sita
Author: Ralph P. Sita

Ralph P. Sita is a seasoned professional with deep roots in both the HVAC and tech industries. His family’s business, Ralph P. Sita, Inc., is a locally owned and operated HVAC contractor with over 42 years of experience, serving the DC, Maryland, and Virginia areas. The company specializes in residential, commercial, and industrial heating, ventilation, and air conditioning services, offering everything from installation and maintenance to custom ductwork and indoor air quality solutions -www.ralphpsita.com. A former CPA, he spent the last decade as co-founder and co-CEO at Cybrary, a leading platform for cybersecurity and IT training. Cybrary became the largest, most well-known cybersecurity training businesses in the industry under his leadership. Smart AC Solutions is an opportunity to give back to the HVAC community by providing reliable, actionable information on all things heating and cooling.

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Ralph P. Sita

Ralph P. Sita is a seasoned professional with deep roots in both the HVAC and tech industries. His family’s business, Ralph P. Sita, Inc., is a locally owned and operated HVAC contractor with over 42 years of experience, serving the DC, Maryland, and Virginia areas. The company specializes in residential, commercial, and industrial heating, ventilation, and air conditioning services, offering everything from installation and maintenance to custom ductwork and indoor air quality solutions -www.ralphpsita.com.

A former CPA, he spent the last decade as co-founder and co-CEO at Cybrary, a leading platform for cybersecurity and IT training. Cybrary became the largest, most well-known cybersecurity training businesses in the industry under his leadership.

Smart AC Solutions is an opportunity to give back to the HVAC community by providing reliable, actionable information on all things heating and cooling.

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