The best window air conditioners you can buy

The Friedrich Chill Series Window Air Conditioner comes in several different sizes with BTU ratings that run from 5,200 to 24,000 BTU.

The Friedrich Chill Series CP08G10B Window Air Conditioner ranges in BTU rating from 5,200 to 24,000 BTU, so you can find the perfect one for your room size, whether it's 150 square feet or 1,400 square feet.

In terms of control, you get a 24-hour timer so you can program run times and four-way air-flow control. The unit comes with a remote control so you don't have to get up every time you want to change the temperature or fan setting.

Like many window ACs today, Friedrich's is Energy Star compliant. It's a relatively quiet AC, though not as quiet as some of our other picks. You won't get smart features or a ton of settings, either, but the price is great at nearly every BTU rating, so it's worth it. — Malarie Gokey

Pros: Many different BTU ratings, affordable, Energy Star rating, 24-hour timer, remote control

Cons: Not as quiet as some

Buy the Friedrich Chill Series CP08G10B Window Air Conditioner on Amazon for $347.25 to $929 (price varies by BTU rating)

The Frigidaire Gallery Quiet Temp 115V 8,000 BTU Window Air Conditioner runs slightly quieter than others, making it great for your bedroom.

If you want a slightly quieter AC for your bedroom, Frigidaire's Gallery Quiet Temp AC is a great option. It's an 8,000-BTU AC, so it can cool rooms up to 350-sq. ft., which should be more than enough for most bedrooms.

Frigidaire says it runs at 44 decibels, though the Wirecutter pegged it at 54 decibels during its tests. The reviewers were fast to point out that it's still 6 to 8 decibels quieter than every other AC they tested. Frigidaire's AC also has a Sleep Mode that's meant to minimize sound while keeping you at a comfortable temperature for sleep.

The AC is also an Energy Star product, so it should help you save electricity and money in the long run if you use the Energy Saver mode. The included remote control makes it easy to adjust the temperature, change the fan speed, and set timers. — Malarie Gokey

Pros: Quieter operation, 8,000 BTU is good for a large room, effective cooling, remote control

Cons: On the pricey side

Buy the Frigidaire Gallery Quiet Temp 115V 8,000 BTU Window Air Conditioner at Walmart for $379.99

The LG LW1516ER Air Conditioner doesn't just offer great cooling modes and a high-quality dehumidifier, it's also able to cool big rooms with up to 15,000 BTU.

If you're looking for something better suited to large rooms, the LG LW1516ER might be the better option for you (think of it as the big brother to our overall pick). The LG LW1516ER a 15,000-BTU AC that can theoretically cool rooms up to 800 sq. ft., which is larger than many city apartments. But it's well-suited for large living rooms or even a studio apartment.

This unit offers three cooling settings, a remote control, an energy-saving mode, and a 24-hour timer so you should be able to set it to perfectly suit your needs. It's also able to dehumidify a room up to 4 pints per hour, which is ideal for larger rooms. It even offers an auto-restart feature in the event of a power failure.

Of course, being capable of cooling large rooms means the unit itself is also larger. It'll sit in at 26-inches wide, almost 27-inches deep, and almost 17-inches high. It might seem expensive, but for a 15,000-BTU AC, it's actually reasonable. — Christian de Looper

Pros: Able to cool large rooms, not too expensive, high-capacity dehumidifier

Cons: A little bulky

Buy the LG LW1516ER Air Conditioner from the Home Depot for $469.00

The LG 115V Dual Inverter Smart Window Air Conditioner is quiet, energy-efficient, easy to set up, and connects to your Wi-Fi for smart features like app and voice control.

The LG 115V Dual Inverter Smart Window Air Conditioner comes in sizes ranging from 14,000 BTU to 22,000 BTU, so it's powerful enough to cool rooms ranging in size from 800 square feet to about 1,200 square feet. If you live in a one-bedroom apartment or a studio, it can cool your entire living space.

LG's AC has an Energy Star rating for efficiency, so it should help lower your electricity bill by about 25%, too. The unit has four cooling and fan speeds, as well as an Auto Cool function that optimizes cooling in your space. It has a 24-hour timer, so you can have a set schedule for when you want your AC to turn on and off.

Even though it's a big, high-powered AC, the LG is shockingly quiet, thanks to Lo-Decibel Operation, which brings the noise level down to 43 dB.

In addition to coming in large capacities, this AC can connect to your Wi-Fi to enable smart features like remote app control and voice commands if you use the Google Assistant or Amazon's Alexa. There's also a normal remote control and buttons on the interface if you don't want to get into the techy features.

As a tech geek, I really liked being able to turn my AC on with a simple voice command or with a tap in the app. It worked consistently and was easy to set up on my home Wi-Fi network in the app in a matter of minutes. We used it on some of the hottest summer days and it worked perfectly, cooling our entire apartment.

The 14,000 BTU unit that we tested measures 23.62 by 20.67 by 24.80 inches, so it is a very large AC. It barely fit inside our window, so be sure to measure before you buy. The 18,000 and 22,000 BTU units are even larger. — Malarie Gokey

Pros: Smart features, remote app control, Wi-Fi connected, quiet, sleek-looking, comes in three BTU levels for large rooms

Cons: Expensive, large, only suitable for large rooms

Buy the 14,000 BTU unit at Home Depot for $489 Buy the 18,000 BTU unit at Home Depot for $609 Buy the 22,000 BTU unit at Home Depot for $659

The 5,000 BTU hOmeLabs Window Air Conditioner is easy to use and great for smaller rooms, but the best thing about it is that it costs only $170.

Looking for a great air conditioner on a budget? Don't worry – there are still some great options out there, and the 5,000-BTU hOmelabs Window Air Conditioner will only set you back $170, which is much cheaper than any of the other units on this list.

Not only is it affordable, but it will still offer some excellent features. For example, the hOmeLabs AC offers two cooling settings, seven fan speeds, and two-way airflow. It's best for small rooms of about 150 square feet in size, since it is a 5,000 BTU unit.

While it may have fewer settings and features than some others, the features it does have are easier to control – on the front you'll find two mechanical rotary controls, which means you won't have to learn any complicated user interface or different button combinations.

Of course, there are downsides to going for a cheaper unit – the air conditioner isn't really capable of handling larger rooms, and it doesn't have as many cooling settings as others. Still, when it comes to value-for-money, this is one of the best out there. — Malarie Gokey

Pros: Affordable, easy to use

Cons: Won't suit larger rooms, fewer cooling settings than some others

Buy the hOmeLabs 5,000 BTU Window Air Conditioner on Amazon for $169.99

Just plug any AC into a Wi-Fi smart plug, and you can turn it on or off with your voice or a timer.

If you want a smart AC, don't spend the extra money to buy one. Just get a smart plug like Belkin's WeMo Mini. It costs less than $25 and makes any device you plug into (not just your AC) smart. It does require that you have a home Wi-Fi network set up.

Once you have your AC plugged into it, you can control it remotely with the app and set schedules for when you want your AC to turn on and off. The smart plug also supports Alexa, Google Assistant, and Apple HomeKit, so if you have one or two of those digital assistants at home, you can control your AC with your voice.

Even if you don't have a schedule set up, it's nice to be able to turn on the AC an hour before you get home, for example.

Best of all, when AC season is over, you can use the plug with anything else — lights, a curling iron, a toaster, what have you. Some of these plugs can even monitor energy usage.

Belkin isn't the only manufacturer that makes smart plugs. We've had success connecting an AC to various smart plug brands, including the iHome ISP6, PureGear PureSwitch, and the new (as of June 2019) SmartThings Wi-Fi Smart Plug from Samsung, which costs less than $20. We tested all of these with great success, although it may require two attempts during the set-up process. Otherwise, all of these plugs were easy to set up and able to turn our AC on and off. However, you should make sure the smart plug you buy is capable of supporting an AC's voltage. — Malarie Gokey and Les Shu

Pros: Voice control, supports Alexa, Google Assistant, and/or HomeKit (most smart plugs support Alexa and Google Assistant), app control, makes anything smart, schedule turn on and off

Cons: Some apps are more modern than others, set-up may require two or more attempts

Buy the Belkin WeMo Mini Smart Plug on Amazon for $23.62 (originally $34.99) Buy the iHome ISP6 from Best Buy for $29.99 Buy the PureGear PureSwitch on Amazon for $43.98 Buy the Samsung SmartThings Wi-Fi Smart Plug from Best Buy for $17.99

The best portable air conditioners you can buy

Portable air conditioners are sometimes the only option to get the cool air you need, but they tend to be expensive. The Whynter 14,000 BTU Dual Hose Portable Air Conditioner stands out from the crowd because it's powerful, relatively quiet, and doubles as a fan or dehumidifier. Here are our top picks for the best portable air conditioners:

• Best portable AC overall: Whynter 14,000 BTU Portable AC
• Best portable AC for small spaces: NewAir 10,000 BTU Portable AC
• Best high-end portable AC: Whynter 12,000 BTU Portable AC
• Best affordable portable AC: LG 8,000 BTU Portable AC
• Best smart portable AC: Frigidaire 12,000 BTU Smart Portable AC