Best 5,000 – 6,000 BTU Air Conditioners: Portable, Window, Room

Scouring the internet or your local store for high-quality products for your home can be a daunting task. We all want to buy products that are a good investment for our homes. We want something that will last for years and serve its purpose efficiently, saving us a lot of money in the long run.

It’s only proper that you check first what models or brands of home appliances are worthy before you purchase. Whether you’re shopping for a utility or laundry room sink or lawn & garden tractors, it’s important.

There are a lot of factors to note when shopping for one. You have to consider the watts and BTU and how small & compact the model is. Is the model lightweight enough for a window installation? Is it quiet and efficient enough for your needs?

This article aims to help you decide which brand and model will work the best for you. It offers some recommendations from well-known brands.

12 room which is 144 ft and occupied by

Things to consider before buying an air conditioner

First and foremost, you have to consider the limitations of your space when choosing the type of air conditioner. Do you have a window for portable and window options? Do you want a unit that you can easily transfer from room to room or a more permanent unit? Can you cut a hole through the wall to make space for the wall-mount type?

After that, you must pick the right British Thermal Unit model. If the BTU of your model is not high enough, the unit may not be able to cool the whole room to the appropriate temperature. And if you buy too powerful of a model, you’ll just be wasting all that extra energy that the unit is using up.

Through the wallWindowPortable

In line with this, let’s tackle the common types you can find on the market: Portable, window, and wall-mounted ones.


PACs stand for portable air conditioners. They came into popularity due to their relatively low price and quick setup. They offer flexible installation options that most units cannot offer. Generally, a PAC is a compact and self-contained system useful for cooling small rooms. It’s ideal where a window or split type ones are usually too much to cater to space or energy consumption. Generally, a PAC sits on the floor.

Some models have wheels and handle for better portability. It allows you to easily move the setup from window to window or room to room. Some models even come in a mini size that’s lightweight, which is perfect for small bedrooms.

Portable ones work just like how most traditional functions. In a nutshell, they take in warm air from indoors into their system. The chemical refrigerant absorbs the heat, leaving cool air expelled indoors. The heat is expelled from the warm air by condensing the air into a liquid, allowing heat release.

This cooled-off liquid is evaporated back into cool air and expelled indoors. It gives the cooling effect that we feel in our homes. This process also reduces the moisture from the air indoors to reduce the humidity. The more humid it is, the hotter we feel.

The difference between ACs and PACs is how the unit expels heat outdoors and drains water. Portable ones typically have window kits that you must install to exhaust the warm air to another location. Depending on the unit’s model, window kits may involve a window slider and an exhaust hose. This venting system is fairly easy to install, which adds to the charm of PACs.

Standard portable options for moisture draining need manual water removal. You must periodically empty a bucket or container in the system that collects the moisture. Other models have a gravity drain and condensate pump. It involves attaching a hose to the unit and directing the other end outside or into a drain. However, advanced models of portable units now have self-evaporative features.

These portable ones evaporate moisture from the same exhaust hose that the venting system uses to expel warm air. This way, you won’t need to manually drain the water or direct it outside via an extra hose.

Nowadays, there are portable units that can cool down even large rooms. It depends on their power. PACs with 7,000 to 10,000 BTUs are enough for small rooms that do not exceed 300 square feet. Larger rooms require more power. Factors can affect the cooling efficiency, such as the weather.


Window models are one of the most common types. It’s a popular choice for apartments and dorms because it’s easier to install than split types. It usually does not require additional installation fees. It requires a window that can accommodate the unit, and installation will be a breeze. All it takes is an accurate unit measurement and screwing down the AC to the appropriate location at your window. You have to seal the gaps around the unit.

Your new cooling wonder is good to go! Make sure you’re okay with your window being pretty much unusable when the AC is installed. It can block light or prevent easy opening and closing of the window.

Remember to choose a window with a nearby plug to power up your unit. But suppose you only have one window that can accommodate the unit and it’s too far from the electrical outlet. You can remedy this by purchasing extension cords! Be careful choosing the right extension cord since not all can carry the proper amount of voltage due to its length and wire size.

This is extremely important. It’s especially if you’ll be using the extension cord for multiple appliances that use a lot of power, like units. Check this article on the best 6-16 Gauge Extension Cord Chart so that you can pick the proper extension cord for it.

And suppose you’re planning on buying a circuit breaker or fuse for it. You have to know which wire size is appropriate to ensure that it can handle the electrical current that will run through it. Check these guide articles with brand/product recommendations. Avoid accidental fires or appliance failures.

Suppose you don’t like portable models. Some affordable models can be quite noisy and not as energy-efficient. You don’t want to make any permanent changes to your wall. Window ones will be a good choice for you. These are meant to fit within the boundaries of a window. The usual models are relatively lightweight and compactly designed. They’re also moderately sized. Like any other type, window models have different capacities. It’s important to choose one that can efficiently cool down your room.

Through the wall

Wall-mounted ones are quite similar to window models. An AC is one big unit with its vent facing outside and the fan that blows the cool air faces inwards. Wall-mounted ones are heavier and sometimes bigger. This is why most wall units can never be interchanged with window units. They cannot offer the same support for the heavy unit as concrete walls.

Another difference between these two types is that window units typically have vents at the sides that expel warm air. In contrast, wall-mounted ones only have vents at the back of the unit. It is because window units usually hang out from the window. It allows the side vents to have space. Wall units are flush with the exterior wall or only hang out in small inches. Wall ones are relatively cheaper than split-type options and central air conditioning. It’s the preferred choice for those who want to save up energy consumption if you only need to cool a single room.

The downside of wall units is the need for a rectangular hole in the wall. They require extra installment fees and labor. This is why you can’t use this if you live in rental areas. Window and portable models can be temporary fixtures. Wall-mounted ones become pretty much a permanent fixture in your place because of the need to cut through a wall.

But the advantage of this is that you won’t have to worry about blocking a window upon installation. Remember that the wall unit cannot cool the neighboring room even if the BTU is high since there is only one vent. They’re suited for a single room only. This is also true for portable and window models.

What to look for

man adjusting an AC

Once you’ve decided on the type you want, look closely at features to make sure that you’re buying a model worth it. Here are some noteworthy features:

  • Quietness
  • If you’re putting the AC in your bedroom or office, opt for the quietest model you can find. Avoid disturbing your sleep or concentration at work. Check for the decibel level of the AC and choose the one that has a range within 50-60 dB. Some models that have a 60-80 dB range only get noisy when it’s running at 100% capacity. They are generally quiet when running at 60% capacity only.
  • Air quality
  • Choose a unit that can give you clean, dehumidified air. Models that can dehumidify air effectively will work better during hot, humid seasons. Make sure that the unit has a good filtering performance. Its filter should be easily acquirable in the market, especially if it needs frequent replacement. A dirty filter is a prerequisite for poor performance and poor air quality.
  • Energy efficiency
  • With energy rates skyrocketing, climate change is worsening. Remote working is the norm now. It’s important to choose the most efficient and energy-saving model. It will cool your space without inflating your energy consumption ten-fold. Check if the brand is Energy Star Qualified. It means they’re proven to be energy-efficient.
  • Maintenance and cleaning
    • Models that are easy to maintain and clean will last longer than the ones with complicated up-keep. Pick a model that you can regularly clean by yourself.
  • Warranty
    • Some things are just beyond our control. For appliances, it’s important to choose a brand that offers a long warranty so that when issues arise. You won’t be charged a huge sum of money right away. Try to see if the company offers free returns within 30 days, just in case the unit is proven to be defective. Sometimes, it’s better to just get a whole new unit rather than push for a warranty fix.
outside air conditioner

Room size of a 5,000 & 6,000 BTU unit & how much it powers

When it comes to cooling your rooms, size matters. As mentioned, you must pick a model with the right BTU/hr. That way, you’re sure that the unit has the proper cooling capacity. If you’re unfamiliar with BTU, here’s a brief discussion about it:

  • British Thermal Units are an international measure of energy. It describes the amount of energy that’s needed to increase the temperature of 1 lb of water by 1°F.
  • 1 BTU = energy required to increase the temperature of 1 lb of water to 1°F.
  • Why is increasing the temperature of the water a factor? As I’ve discussed earlier, they work by condensing air and evaporating liquid to remove heat from hot air and release it cool.

A larger area would contain larger amounts of hot air that needs cooling. You need one with more power to lower the area’s temperature effectively. The bigger the room, the higher the power requirement. As a rule of thumb, a unit would need 20 BTU to cool down the air in one square foot of space (1 sq. ft. = 20 BTU/hr).

Make sure that you don’t buy something too powerful for your space or exceed the needed BTU rating. Higher does not necessarily mean better in this scenario. Suppose you choose a 10,000 BTU AC for a mere 300 sq. ft. room. It will undergo each cycle too quickly, wasting energy and efficiently dehumidifying the area. For a 100-300 square foot area, a 5,000 – 6,500 BTU option unit would suffice. Here’s a chart from Energy Star. Use it as a cheat sheet when picking the right model for your living space.

Some factors may also affect the cooling power. BTU/hr requirement of a certain area must be adjusted depending on the following factors:

  • Amount of light the room receives. Increase the power if sunny, decrease it if shaded.
  • Crowded spaces. Each person generates body heat. Increase it if crowded.
  • Appliance load or type. Usage of kitchen oven and stove would require an increase.

To know the specific increase or decrease needed per factor, consult with the provider of your AC unit.

Make sure to also read our SAE to metric guide and our guide on stainless steel and why your central AC may be blowing cold air. If you’re in the market for a cassette toilet, here’s what to look for there.

Brands with the best 5,000-6,000 BTU air conditioners

You have to pick one that’s within your budget, something cost-worthy. It needs to provide efficient cooling power. Various brands offer similar specs but differ in price. Some units are the same price but differ greatly in specs or extra features. To help you pick the most suitable one for you, I’ll outline the top-rated 5,000-6,000 BTU options that can effectively cool a 100-300 square feet area.

HaierLG ElectronicsFriedrich
GEFrigidaireArctic King

LG Electronics

LG Electronics has been around since 1958 in Korea. They expanded worldwide as they advanced in business and technology. The company continues to adhere to its philosophy and brand image, “Life’s Good.” It does so by developing new products like home appliances & air solutions. They aim to improve their consumer’s life quality. Here are some noteworthy features:

Their models are smart, eco-friendly & energy efficient. They can save up to 70% of energy consumption. They have a low-noise operation and cooling technology. They also have mesh and HEPA filters for better particle quality, and tick all the boxes of the features you should look out for. LG AC units are broad, ranging from 5,000 to 24,500 BTU. They offer smart features like Wi-Fi and remote-control systems.

LG has various types, including portable ones and window ones. They also have split-type units and commercial ones. One notable LG model is the LW6017R. A 6,000 BTU 115V window air conditioner is top-rated on Amazon with over 8,000 reviews.


For over 30 years, Haier has been bringing state-of-the-art products to the market without pause. They’re designed to suit the ever-changing needs of people and the environment. According to Euromonitor International Limited, Haier has become one of the top brands in major appliances for 12 consecutive years. This billion-dollar company always stayed true to its objective. It’s to bring premium, reliable products to make their customers’ lives easier. All their innovations are based on what they learned from their customers. They note all reviews and suggestions to enrich their research and design even more useful products.

Their products are efficient and equipped with smart features like self-cleaning filters. They also have a user-friendly interface and remote or control panel. Haier offers various options (5,000 BTU to 23,500 BTU).

GE Appliances

GE Appliances is a Haier company focused on designing products that make life at home easier. This company sells appliances under various brands, such as Monogram and Cafe. They also have GE Profile and Hotpoint. GE Appliances produce refrigerators and small appliances. They are all designed to be eco-friendly smart, easy-to-use. Innovation has always been one of their strongest points, releasing smarter and better technology every year. It makes them known as one of the top producers of home appliances.

Some notable 5000 BTU models from GE are the AET05LY and AEY05LV units. Both units are 115V room models. They are top-rated on multiple home appliance shopping sites. AET05LY has a 4.2-star rating on Home Depot, while AEY05LV has 4.5- and 4.6-star ratings on Walmart and GE.


Frigidaire is one of the top brands for high-quality, energy-efficient kitchen and laundry appliances. Founded last 1918, this company has brought many firsts into the American market. Some of them include refrigerators and freezers. As the company name suggests, Frigidaire was first focused on cooling appliances in the past. The company is also known for other products like stoves and dishwashers. They’re also known for microwaves and dehumidifiers. All of their models are energy-saving and have impressive cooling capacities.

Here are some of the most top-rated options by Frigidaire that you might want to check out:

  • 5,000 BTU options
  • Frigidaire FFRA0511R1 – 115V, Room
  • Frigidaire FFRA0511R1E – 115V, Mini-Compact
  • Frigidaire FFRE0533S1 – 115V, Mini-Compact
  • 6,000 BTU Window-Mounted options
  • Frigidaire FFRLl0633Q1 – 115V, Low Profile
  • Frigidaire FFRE0633S1 – 115V, Mini-Compact


Unlike the other brands, Friedrich has created air conditioning products manufacturing premium room products since 1883. This brand offers durable and efficient models, ranging from models best suited for residential units to heavy-duty ones. Their models are one of the most energy-efficient and quietest units globally.

Friedrich Chill CP06G10B is a 6,000 BTU Window Room powerhouse. It is one of their most popular options, with a 4.2-star and 5-star rating on Amazon and Walmart.


For more than 100 years, Kenmore has been providing its consumers with innovative home products. All of their appliances make day-to-day living easier, whether cooking or cleaning. Kenmore has been awarded the Energy Star Award for three consecutive years. Their products are proven to be energy-efficient. They yield powerful results while consuming the lowest potential energy via the low-power startup feature. This brand offers central and portable ones. Kenmore products have an 8,000-12,000 BTU power range, equipped with antimicrobial filters and smart technology.

Arctic King

Arctic King is a budget-friendly brand that provides quality products without breaking the bank. If you’re on a tight budget, you might want to check out Arctic King 6000 BTU. They offer user-friendly portable and through-the-wall ones. Arctic King is owned by the Chinese brand Midea, a unique brand included in the Fortune 500’s list.


Daewoo Electronics has manufactured and sold appliances for over 30 years, bringing high-quality refrigerators and washing machines. They also make microwaves and air conditioners, among many other products. They are always aiming for sustainable growth through producing eco-friendly, energy-saving robust products for their consumers. They have two energy classes, A Cooling and A++ Cooling. Daewoo products can quickly drop the room’s temperature. Their inverter units have Turbo Heating-Cooling Technology and operate at a low noise level. Each model is sold at the right price, and the portable ones are very easy to install. Almost all of their models are equipped with smart features for easier control and maintenance.


For over 70 years, Danby has been creating appliances designed to fit your space seamlessly. This company originated in North America in 1947. They expanded to Canada and the US as their brand became more successful due to their affordable yet powerful appliances. Their designs are always timeless, yet each product feature improves each day. Danby offers portable and window-mounted ones. Their portable units have a 3-in-1 feature, which involves a cooling and heating function. Get a fan function and dehumidifier function as well. Their portable ones range from 5,000 to 14,000 BTU, while their window options are available in 5,000 up to 25,000 BTU.

Homelabs (hOmeLabs)

The brand hOmeLabs became well-known due to its dehumidifiers and air conditioners. They are comparable to that of Frigidaire in terms of energy efficiency and performance. They offer portable and window options that are very easy to use and maintain. These units have a power range of 5,000 to 15,000 BTU. All their designs appear sleek and simple, and each model performs efficiently and quietly.

How big of a generator do I need to run a 5000 BTU model?

picture of an air conditioner

When dealing with electric appliances, it’s important to consider safety and compatibility. Consider quality first before anything else. You have to be careful when choosing the right AC unit because one mistake can cause a tragedy in electrical appliances.

As mentioned earlier, it’s vital that the amp wire size and extension cords that you’re using can handle the electrical current. It will run through it to power your AC unit. In terms of generators, most 5,000 BTU air conditioner units must be powered by a 500-watt generator. Some units may need a stronger generator if it’s not energy efficient. Make sure to check the actual power requirements of the model to know exactly how many watts it uses as it runs.

If the model exceeds 5000 BTU, you must also increase the generator’s power. On average, a generator with 600 watts of power can handle a 6,000 BTU model. In contrast, a 2000-watt generator can handle ones with up to 15,000-20,000 BTU capacity.


How many square feet will a 5000 BTU air conditioner cool?

A 5000 BTU air conditioner will cool a 150 sq ft room per basic industry standards.

How many BTU do I need for a 12×12 room?

How many BTUs you need depends on factors other than just the area. A 12×12 room which is 144 ft and occupied by two people, requires approximately a 5000 BTU air conditioner. That’s on average. Suppose the room where the air conditioner is to be placed is heavily shaded with little to no sunlight. In that case, a 4,500 BTU air conditioner will also work.

A sunny room, on the other hand, will require 5,500 BTU. And suppose the room is availed by more than 2 people, then add 600 BTU for each extra person in the room.

Is a 5000 BTU air conditioner good for a small room?

That depends on what “a small room” means to you. Consider a 12×12 room that can fit a queen-size bed. A “small room” can barely fit a bed. We’d say that a 5000 BTU air conditioner should be just about fine. The sunlight and the number of people occupying the room need to be considered while deciding the BTUs needed for the room.

Does a 5000 BTU air conditioner use a lot of electricity?

How much does it cost to run a 5000 BTU air conditioner a day?

The cost to run a 5000 BTU air conditioner would be nearly $1.60 per day. but, this number will look slightly different for everyone as:
– Every air-conditioner has different energy-efficiency ratings.
– Some people use air-conditioners only a couple of hours per day, while others may use them 24×7.
– The cost of electricity is dependent on the location and country.