Best 15000 BTU Air Conditioners – 2021 Round-up

A good-quality AC can keep your home comfortable all summer. But as you probably already know, not every AC works for all room sizes.

A 15000 BTU air conditioner might be what you need to cool a reasonably large space, and this guide will help you make the best choice.

Comparison of the Best 15000 BTU Air Conditioners

  • Voice control enabled for easy access to functions
  • Compatible with Google Home and Alexa
  • Auto mode as well as cool, dry, and fan modes
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  • A lightweight and compact design for easy installation
  • Air louvers will direct air in 8 directions
  • Easy maintenance with removable and washable filters
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  • Best 15000 BTU Window Air Conditioner
  • Large cooling floor area of 700 square feet
  • Automatic louver sweeps during cooling operation
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How Much Area Will a 15000 BTU Air Conditioner Cool? 

15K BTU air-cons are powerful enough to adequately serve areas with dimensions ranging from 550 to 1,050 square feet.

These units are too large for spaces smaller than 550-square-foot unless you live in an unusually warm region.

On the flip side, they’ll leave your room feeling warm and sticky if you install them in areas with larger dimensions.

A 15000-capacity AC in a 1,050-square-foot room might perform poorly if there are heat-generating appliances nearby or too many occupants in the room for longer periods.

First, you need to determine your room’s dimension before choosing any of these heavy-duty air-cons.

Emerson Quiet Kool EARC15RSE1

Can You Really Find a Quality 15000 BTU Air Conditioner That’s Affordable? 

With air conditioners, you usually get what you pay for. The prices for 15000 BTU AC units depend on the manufacturer and the build of the product. Feature-rich models tend to be more expensive but ensure higher comfort than standard versions.

That doesn’t mean you can’t get good-quality 15000 BTU units at an affordable price. Affordability doesn’t necessarily translate to “cheap.” You can find energy-efficient air-cons with impressive cooling capabilities at a bargain.

It is best to invest in quality air-cons with great prices instead of cheap ones. The products in this guide balance quality with affordability.

Review of the Best 15000 BTU Air Conditioners 

Here are some of the excellent 15000 BTU air conditioners available on the market.

Best Overall:
Emerson Quiet Kool EARC15RSE1

Emerson Quiet Kool 15,000 BTU Smart Window Air Conditioner, 115V, Wall AC Unit for Large Rooms up to 700 Sq. Ft., Bedroom, Living Room, with Wifi and Voice Control, Amazon Alexa & Google Home Control


  • Easy-to-clean removable filter
  • Programmable 24-hour timer to suit your schedule
  • Wi-Fi connectivity and mobile app option for smart control
  • Multi-directional louvers for cooling all the areas that matter
  • Comes with top-of-the-line warranty policy of one year labor, 2 years parts, and 5 years on compressor


  • Significantly heavy AC
  • Operates louder than similar-sized models

What Recent Buyers Report

Buyers tend to be happy with the overall ease and convenience this model offers. Plus, the price is hard to beat, considering its cutting-edge technology. They also report that installation is a breeze despite its bulky size.

Most complaints center on the fairly loud rattling sound, especially during high settings.

Why it Stands Out to Us

This offering from Emerson Quiet Kool easily takes the lead when it comes to smart air conditioners in the 15000 BTU range. You can conveniently adjust settings from your smartphone while on the go, thanks to its Wi-Fi connectivity.

Hands-free control doesn’t get any better with Google Home and Alexa support. All it takes to operate this beautiful, white air conditioner is your voice.

On top of that, the unit comes complete with a full-function remote control just in case you’re unable to control the AC with your smartphone.

Works fast to cool areas of up to 700 square feet.

Bottom Line

Emerson Quiet Kool displays its superior engineering with this window air conditioner. Surprisingly, it is more affordable than some similar-capacity models and performs well, too. This is a great choice to consider if on-the-go control ranks high in your preference.

TCL 15W3E1-A

TCL 15W3E1-A Home Series Window Air Conditioner, 15,000 BTU, White


  • Uses a standard household 115-volt outlet
  • Minimal hassle to set up the unit, plus easy installation
  • Sleep mode and eco mode for significantly lower energy cost
  • Extra-long power cord for flexible connection to power outlets
  • Full-function remote control to conveniently change temperature and other settings


  • Slightly noisier than others
  • Condensation might be problematic

What Recent Buyers Report

Buyers like the build quality of the TCL 15W3E1-A. Many customers say the air conditioner model effectively cools their rooms. Others report that the remote control’s long-range offers true convenience. Many people also say the company’s customer support is helpful. The only major complaint centers on the unit’s condensation.

Why it Stands Out to Us

This TCL AC unit effectively cools rooms up to 700 square feet, and it does so quickly. You don’t have to sit directly in front of the unit to stay cool or enjoy the cool air. It blows air in eight different directions to cover all corners of your room.

The eco mode automatically turns off the compressor when the room attains your ideal temperature. Auto-restart functionality lets the air conditioner resume operation with all previous settings after a power outage.

A “clean filter” indicator lets you know when it is time to give the air filter a good washing.

Bottom Line

The TCL 15W3E1-A is one model we highly recommend, especially if you have a reasonably large space to cool. It is a real money-saver with a comparatively low price tag, but that doesn’t take away from its impressive cooling capabilities.

Best 15000 BTU Window Air Conditioner:
Friedrich Chill Series CP15G10B

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  • Suitable for 115v standard home outlets
  • Sizable digital display for monitoring temperature
  • Money saver setting conserves energy by running the fan only
  • Power cord can run from either side of the unit for flexible outlet options
  • Distributes air evenly throughout the room with continuous auto-air sweep louvers


  • Slightly expensive option
  • Noise level unsuitable for light sleepers

What Recent Buyers Report

Customers rave about the model’s awesome cooling performance, especially people in brick homes and apartments that can get extremely hot. Many people are happy that it does an excellent job of chilling.

However, some buyers think the size and weight is a tad too much, making installation a 2-man job.

Why it Stands Out to Us

The CP15G10B excels with its higher-ranking EER ratings. We also think the auto-air sweep louvers make it an excellent air conditioner.

Featuring four operating modes, the unit comes with remote control for conveniently adjusting every function and setting on the unit.

Its strong but gentle blasts can cool down rooms of up to 700 square feet to a chill without difficulty. There are only so many 15000 BTU window air-cons that can go toe-to-toe with this model in terms of reliable performance.

These superior qualities make it one of the best 15000 BTU window air conditioners on the market.

Bottom Line

You may as well choose this option if you are in the market for a reliable 15000 BTU window AC. Provided the area to cool down falls within the ideal square footage, you can be sure of a good chill.

4. Frigidaire FFRE153WAE

Frigidaire FFRE153WAE Window-Mounted Room Air Conditioner, 15,100 BTU with Energy Star Certified, Multi-Speed Fan, Sleep Mode, Programmable Timer, Easy-to-Clean Washable Filter, in White


  • Fast cooling for rooms up to 850 square feet
  • 6-way control provides cool air in multiple directions
  • Excellent for light sleepers operates quietly at 52 dBA
  • Large display panel allows for easy temperature monitoring
  • Energy Star-certified reduces energy consumption and saves money on electric bills


  • Heavier than similar models
  • Poor handling with some units

What Recent Buyers Report

This is one model that receives plenty of praise from buyers. Apart from cooling fast, many customers say using this air conditioner cuts their electric bills down by nearly half. Many people recommend the air-con for cooling large apartments and homes.

Overall, many buyers think it is a great product.

Why it Stands Out to Us

One of the most outstanding features of the FFRE153WAE is its low power start-up, meaning it requires less energy to turn on the air-con.

Using this beast of a unit saves you money in the long run, considering its Energy Star efficiency.

Less energy consumption doesn’t mean lower performance. Instead, Frigidaire’s 15000 BTU air conditioner provides powerful and quick cooling for large areas.

Like other high-quality models, this one also comes with useful and convenient features, including a dehumidifier, ready-select digital controls, multi-speed fan, washable air filter, and effortless restart option for auto-resumption with previous settings after a power outage.

Bottom Line

Frigidaire combines excellent climate control capability with efficient cooling in building this stylish, feature-rich, 15000 BTU air conditioner. We recommend this option to people with larger-than-average windows looking for a powerhouse AC unit that won’t break the bank.

Best LG 15000 BTU Air Conditioner:

LG 15,000 BTU Window Air Conditioner, Cools 800 Sq.Ft. (20' x 40' Room Size), Quiet Operation, Electronic Control with Remote, 3 Cooling & Fan Speeds, Auto Restart, 115V


  • Draft reduction due to up-facing vent design
  • Comes with complete installation kit for quick setup
  • Multiple fan and cooling speeds provide users with flexible cooling
  • Brand’s patented anti-corrosion coating on fin for longer-lasting unit
  • Full-function stylish remote control with digital panel for precise temperature settings


  • Confusing digital controls
  • Some units can get very noisy

What Recent Buyers Report

Overall, customers report that the LW1516ER is an attractive machine with effective cooling capability.

However, the dehumidifier function did not perform up to the expectations of some buyers. Others say some of the units make loud clunking noises because the blades hit the fan shroud and may require professional installation.

Why it Stands Out to Us 

Firstly, this unit comes with a superior EER of 11.9 – nearly 30% more energy-efficient than most standard air conditioners with 8.5 ratings. You spend far less on energy bills using this model.

This window-mounted AC works well for rooms up to 800 square feet and can fit in nicely with any 115v standard home outlet.

It has a stylish build that looks good on windows. But beyond aesthetics, the unit cools and dehumidifies indoor air.

The 24-hour on/off timer, auto-restart functionality, and the “clean filter” indicator qualifies this model as one of the best 15000 BTU air-cons money can buy.

Bottom Line

LG makes amazing air conditioners, and the LW15116ER is not an exception. Cooling down large rooms is a cinch with this high-capacity product. Barring any quality control issues, this model is sure to give you great value for your money.

Pros and Cons of 15000 BTU Air Conditioners 


Let’s find out the pros it has to offer.

  • 15000 BTU air conditioners provide non-intrusive cooling with low sounds at the most. Even at full blast, these machines are not disruptive. Your paper and other lightweight items will remain intact while they do their job of lowering the temperature of your room.

  • Quality models have higher energy efficiency ratios (EERs), making them use up less energy. Using these air conditioners is a great way to save money on electricity bills while enjoying comfort during the hot months.

  • Their higher BTU ratings mean they can quickly cool down medium to bigger-sized rooms. This is a huge plus for larger homes in hotter regions, as the air conditioner provides more competent cooling than smaller-sized models.

  • 15K BTU air-cons can provide the right amount of cooling for homes where direct sunlight floods through huge windows. It can also lower the temperature in rooms with heating appliances or near kitchens.

Friedrich Chill Series CP15G10B


However, it comes with some drawbacks, including:

  • Some models make more than just a humming sound – they are noisy. Having these types in the bedroom or study can disturb your peaceful night’s sleep or concentration while reading.

  • Some 15000 BTU air conditioners are not energy-efficient and can increase your electricity bill.


Buying a good-quality 15000 BTU air conditioner is a sure-fire way to keep your home as comfortable as you want during hot weather. While there are many options, always remember to choose a model that suits your specific room size. It is also crucial not to sacrifice performance for affordability.

People Also Ask

A 15000 BTU air conditioner is a fairly large-capacity unit that requires special power considerations. For starters, you don’t want to plug them into just any outlet in your home because they are heavy-duty appliances. Here are a few questions that many potential buyers ask about these units.

How Many Amps Does a 15000 BTU Air Conditioner Use?

15000 BTU air conditioners draw up to 10 amps and even more in some cases. You need to provide a dedicated outlet for these heavy-duty units because sharing the socket with other appliances will trip the circuit. It is usually best to plug any other devices into separate wall outlets.

How Many Watts Does a 15000 BTU Air Conditioner Use?

These types of ACs will need at least 1500 watts per hour to run smoothly. Keep in mind that this is the minimum wattage when the unit runs at normal settings. Although electricity rates vary from place to place, the cost of using a heavy-duty AC shouldn’t be too expensive.

What Size Generator to Run 15000 BTU AC?

A 3300w to 3500w generator can start a 15000 BTU air conditioner. However, starting an AC requires more power than keeping it running. Once the unit starts working, it will take approximately 1300w to 1800w to continue running. This leaves room to plug in other appliances with lesser power usage.