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LG

LG 14000 BTU Window Air Conditioners [2023 New] Remote Control WiFi Enabled App Ultra-Quite Washable Filter Cools 800Sq.Ft for Large Room AC Unit air conditioner Easy Install White LW1521ERSM1

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Availability: In Stock.
Fulfilled by Amazon
Arrives Sep 14 – Oct 12
Order within 8 hours and 52 minutes
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Size: 15000 BTU


Style: Wifi & High Efficiency


Color: Bright White


Features

  • Low Noise Performance: LG window air conditioners operate at sound levels as low as 52dB (in low mode) eliminating unnecessary noise
  • Multiple Fan Speeds: 3 cooling and fan speeds with Auto Cool allow you to customize your cooling
  • Auto Restart: After a power failure, Auto Restart will automatically turn the unit back on when power is restored
  • Cools Rooms up to 700 Square Feet: LW1521ERSM1 is ideal for cooling large rooms (20' X 35')

Description

Introducing the LG LW1521ERSM1 window air conditioner, the epitome of smart cooling technology! With LG ThinQ technology, you can now cool your home from anywhere by controlling your air conditioner using your smartphone. Additionally, you can integrate it with Amazon Alexa and Hey Google, granting you the power to control your air conditioner with simple voice commands. This quiet yet powerful unit is perfectly suited for cooling large rooms up to 700 square feet. Boasting 3 cooling and fan speeds, along with a 24-hour timer, this unit empowers you to create a custom cooling schedule tailored to your needs. The 4-way air deflection feature ensures that the airflow can be directed to the areas where it's needed most, whether for cooling, dehumidifying, or simply circulating air. Worried about power outages? Fear not, as the auto restart feature will work its magic and automatically turn your unit back on once power is restored. The LW1521ERSM1 window ac also comes equipped with a remote control for effortless operation, an easy window installation kit, a slide-out washable filter, and a check filter alert. Upgrade to the LG LW1521ERSM1 for a seamless, smart, and efficient cooling experience that puts you in the driver's seat.

Brand: LG


Capacity: 4.6 Pints


Cooling Power: 14000 British Thermal Units


Special Feature: Dehumidifier, Dust Filter, Filter Light Reminder, Remote Controlled, WiFi Enabled


Product Dimensions: 22.17"D x 23.63"W x 15"H


BEE Star Rating: No


Start year: 2023


Seasonal Energy Efficiency Ratio (SEER): 11.2


Color: Bright White


Voltage: 115 Volts


Product Dimensions: 22.17 x 23.63 x 15 inches


Item Weight: 82 pounds


Manufacturer: LG


Item model number: LW1521ERSM1


Batteries: 2 AAA batteries required.


Form Factor: Window


Warranty Description: 1-Year Limited


Batteries required: Yes


Included Components: Window Air Conditioner, Installation kit, Remote


Capacity: 4.6 Pints


Floor Area: 700 Square Feet


Voltage: 115 Volts


Noise Level: 53 dB


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sep 14 – Oct 12

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • Great replacement for Midea U and/or just a new buy - Works great- quiet and efficient
Size: 1 Count (Pack of 1) Style: Wi-Fi Color: Bright White
Have had this unit for a month after the Midea U recall forced a search for a replacement. It is a really good unit and meets my needs in a very hot humid climate for two upstairs rooms with many electronics in the home office/den. It is quite quiet on low and medium fan levels, and somewhat noisy on higher fan speed but have only utilized anything but low after getting the hang of its capabilities. Quick cooling and efficient dehumidification. App interface is good. Recommend this unit and think it will do a great job for you. Installation pretty straight forward and including removal of the old unit this replaced the total time to 'job done' was 1/2 hour about 15 minutes each step. Really like the design and clarity of the instructions. Recommended! ... show more
Reviewed in the United States on July 12, 2025 by M. Miller
    • Powerful, Quiet, and Reliable – This A/C Exceeded My Expectations
Size: 6000 BTU Style: Electronic & Standard Color: White
Review Image by María C María C
I absolutely love this window air conditioner. I already had the same model for over 3 years, and it’s still running perfectly, so I didn’t hesitate to get another one. 🔹 It cools the room very quickly, even in extreme heat. 🔹 Installation was easy, even for one person. 🔹 The filter is easy to remove and clean, which helps keep it running efficiently. 🔹 It comes with a very intuitive remote control, making it super convenient to adjust settings from anywhere. 🔹 Runs with low noise, which makes it perfect for sleeping or working. 🔹 It’s also energy-efficient, which is great if you use it daily. Overall, I’m very satisfied. It’s well-designed, powerful, and long-lasting. Highly recommended! ... show more
Reviewed in the United States on July 11, 2025 by María C María C
    • Excellent value - works great!
Size: 10000 BTU Style: Cool Only 115V Color: White
I needed to replace an old a/c that was larger, heavier, and filled with mildew from being stored in the shed. I have a small home - only 600 sq. feet total, but the main area I need to cool is about half that -- my living/dining area. My previous unit was 15000 BTU, so I was nervous about going with only 10,000....but it cools the area just fine. While the bedroom/bath down the hall doesn't get "chilly", it really never did before, anyway. It does lower the temperature, and then a fan at night suffices for sleeping at that end of the house. The price on this was very reasonable, and when I ask for help to take it in and out, my helpers will be grateful that weighs about HALF what my old one did! It's an attractive unit, easy to pull out and clean the filter, and is fairly quiet. I also love that the remote works so well. I'm very happy with my purchase! ... show more
Reviewed in the United States on July 14, 2025 by presbygirl
    • This energy saving schemes seems excellent to me
Size: 6000 BTU Style: Electronic & Standard Color: White
I selected buying this 6000 BTU LG for my bedroom after first considered buying another Frigidaire, Haier or a GE air conditioner. I was particularly interested in an a/c unit with low noise, efficient running and of modest cost. Air flow was also important concept. The LG has a 52 decibel rating at low cooling compared to 51 decibel rating for the 6000 Frigidaire; essentially both being quieter than the 6000 Haier and hugely quieter than the 6000 GE. As a frame of reference 50 decibel is equivalent to the sound of high whisper or background sound of the average house. Sixty decibel is the range of typical conversation. Fifty-five decibel was the average decibel level for most window a/c’s in recent past years. To my ears, the fan noise and air turbulence from the output grill of this LG is about the same as the typical window box fan; the compressor over rides that sound mostly because it operates at a bit higher pitch. The Frigidaire seems to have a slightly quieter cooling compressor – but more of a rushing air turbulence from its front discharge grill that tends to offset that benefit. For some, noise is not a major concern as it can even be welcomed in moderation to act as white noise masking unwanted sounds. For me, a/c noise while sleeping can be a bother. However, I have slept very well with this LG while set on its energy saving mode. That setting allows fan to shut off with the cooling compressor – but with fan coming back on in 90 second intervals and running for 30 seconds to sample air temperature until triggered by a rise in temperature to run the compressor. This energy saving schemes seems excellent to me. No noise for a bit at a time and yet the air is kept from overly stagnating. The Frigidaire by contrast runs for 3 minutes after the compressor stops, then waits 10 minutes to run the fan for a super short 10 second span sampling the temperature. In that time span, I often grew a bit uncomfortable with still air becoming warm. The Haier runs 3 minutes like the Frigidaire after compressor stops and waits 10 minutes before recirculates the air for a 3 minute pattern. Both the LG and Frigidaire get extra energy saving by slinging condensation water from the compressor onto the back exchange fins. In heavy rain or high air moisture, the outward fan doing the slinging gets swamped by too much water to plow through, sometimes. This appears to be more a problem with my Frigidaire unit than with my new LG. Simple solution for me is to not use energy saving mode that stalls the fan in spurts from spraying the water over the outside fins – and also avoid using low fan speed. Medium or high fan speed plow through the water build-up well. The LG has a black drain plug on outside right rear. So far in the humid Florida weather, I have had no need to do this, but would simply open and then close the plug when circumstances allowed to return to better energy efficiency. The most pleasant aspect of this LG for me is the uncommon inclined cooling grill.at a 30 degree angle, approximately. While the Frigidaire and Haier have 4-way air direction control neither send cool air to my ceiling were hotter air rises. The LG incline grill sends cooling air that kisses my ceiling. I don’t experience the stratifying pockets of hot air like most other a/c’s leave. The Frigidaire is a solid, well built unit with a very high Consumer Report rating – but its 4-way air control seems to me to direct air flow marginally. I like the appearance of the LG over the Frigidaire or Haier; it resembling the a/c units found under the window and installed in the wall of most upper quality motels. The 6000 LG seems to run about as quite as those units. If you have experienced staying in a motel you’ll have a fairly good idea of the low 52 decibel range of this 6000 LG. . ... show more
Reviewed in the United States on May 17, 2017 by Kindle Customer

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