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LG

LG 12,000 BTU Smart Window Air Conditioner, 115V, AC Window Unit for Rooms up to 550 Sq. Ft., Perfect for Kitchen or Living Room, Phone & Voice Control, Works with LG ThinQ, Amazon Alexa, Hey Google

  • Based on 17,337 reviews
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Availability: In Stock.
Fulfilled by Amazon
Arrives Tuesday, Sep 23
Order within 12 hours and 54 minutes
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Size: 12000 BTU


Style: Wifi & High Efficiency


Color: Bright White


Features

  • Multiple Fan Speeds: This powerful 12,000 BTU window ac unit features 3 cooling and fan speeds with Auto Cool, which allows you to customize your cooling and air flow; Other user friendly features include a 24 hour on/off timer and 4-way air deflection
  • Control Your Cool from Anywhere: LG ThinQ Technology lets you control your LG air conditioner from anywhere; You can start or stop cooling, change the mode, or set the temperature while on the go; It also works with Alexa and Hey Google so you can change settings with simple voice commands
  • Low Noise Performance: LG window air conditioners operate at sound levels as low as 52dB (in low mode), eliminating unnecessary noise
  • Auto Restart Function: After a power failure, Auto Restart will automatically turn the window air conditioner back on when power is restored
  • Cools Rooms up to 550 Square Feet: LW1217ERSM1 is ideal for cooling large rooms (22' X 25'); With 550 square feet cooling coverage, keep your kitchen or living room comfortably cool

Description

Experience superior cooling with the LG LW1217ERSM1, a smart window air conditioner designed to give you complete control and convenience. With LG ThinQ technology, you can cool your home from anywhere. Take advantage of the seamless integration with Amazon Alexa and Hey Google to control your air conditioner with just the sound of your voice. This air conditioner window unit is not only smart but also impressively quiet. With three cooling and fan speeds, you can easily adjust the temperature and airflow to your liking. The 24-hour timer allows you to create a customized cooling schedule. Enjoy precise airflow control with the 4-way air deflection feature. Even in the event of a power outage, you don't have to worry about manually restarting the unit. The auto restart feature will automatically turn on the air conditioner once the power is restored. The LG LW1217ERSM1 also includes a convenient remote for easy operation from anywhere in the room. The easy window installation kit allows for a hassle-free setup. The slide-out filter makes maintenance a breeze, and the check filter alert reminds you when it's time to clean the filter. Choose the LG LW1217ERSM1 for its smart capabilities, quiet operation, and advanced features.

Brand: LG


Capacity: 3.8 Pints


Cooling Power: 12000 British Thermal Units


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


Product Dimensions: 22.2"D x 23.6"W x 15"H


BEE Star Rating: No


Seasonal Energy Efficiency Ratio (SEER): 12


Color: Bright White


Voltage: 115 Volts


Noise Level: 52 dB


Product Dimensions: 22.2 x 23.6 x 15 inches


Item Weight: 81 pounds


Manufacturer: LG


Item model number: LW1217ERSM1


Batteries: 2 AAA batteries required.


Form Factor: Window


Warranty Description: 1 year parts and labor


Batteries required: Yes


Included Components: air conditioner, remote control, mesh filter, installation kit


Capacity: 3.8 Pints


Floor Area: 550 Square Feet


Voltage: 115 Volts


Noise Level: 52 dB


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Sep 23

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

    • Perfect Cooling for a Small Office!
Size: 5000 BTU Style: Remote Color: Bright White
This LG 5,000 BTU window air conditioner is exactly what I needed for my office space (about 10x15 feet). It cools the room quickly and quietly, and the remote makes it super convenient to adjust settings without getting up. Installation was straightforward, and it fits securely in the window. It’s efficient, reliable, and keeps the space comfortable even on hot days. Highly recommend for small rooms or office setups! ... show more
Reviewed in the United States on August 17, 2025 by Ann Guardino
    • LG window ac 12k btu.
Size: 12000 BTU Style: Cool Only 115V Color: White
I am a little over a week in to this unit and can't find a single negative thing to say about it Installation was not too difficult because I had a friend help me do the install as it is kind of heavy and bulky, plus I wanted it installed CORRECTLY. I can't get over how quiet this unit is and how well it cooks my retail bait and tackle store. When though it's a smaller, "mom and pop" type place, it cooled the whole shop off to a very comfortable 68 degrees F in about half an hour. The unit completely got rid of 95+% humidity inside the store within 45 minutes and I am very happy with it's ability to keep the place cool, dry, and shit if when it reaches the temp the unit is set at. Overall, I give it 5 stars. I took into account the cost, ease of install, and functionality. It checks every box I listed before making a decision on purchase. Other reviews were very good so I decided to retire my barely functioning 6k but Haier unit and I could not be happier. I will add to this review in a month and then again in, most likely, October. Which is the end of my season and need for the unit because here in NY. The weather tends to be more comfortable and the unit will not be needed. I will add, if you are on the fence between a unit that has less btu's and this one, go with the higher btu unit. It is definitely worth it and for a free extra dollars, you will not be disappointed! Any questions just ask. ... show more
Reviewed in the United States on June 19, 2025 by Susan Surdow
    • Maybe I got a lemon? Will you get one too?
Size: 12000 BTU Style: Electronic & High Efficiency Color: White
A big hello to all my fellow cool people, or should I say, wanting to be cool? I live in an older house with no central air. Having at least one room that is able to be kept very cold for my huskies is quite important. In the summer they can sleep downstairs in the living room with fans on, the circulation in the house from the fan in the attic keeps it decently cool there. I love to give them COLD temperatures all year round. I, too, enjoy being cool on hotter summer days. I have submitted this item for return the first day I just got it and had family help me install it. Why? This unit is a couple of thousand BTUs higher than a mobile Vremi unit I own [which has lost its efficiency after 1.5-2 years]. It does not even perform as good as that one. That was a shocker. Cold air does not emit from this AC. This was ensuring I had everything set proper. Proper mode, proper vent setting [it can be on or off of course if you want to circulate outside air], and the fact that this cools rooms up to 550 sq ft left me very surprised to see it not work, since the room I put it in is less than 300 sq ft. If I had a king or queen bed in this room, it would be the majority of the room. The air was mildly cool at best coming from the AC. I even took my shirt off and let the air from the AC hit my torso. Not cold. [60 degree setting] I decided to run some experiments. I ran the AC [again, proper mode and settings] from 60 degrees to 80 degrees in variance. There was no change in the temperature of the air coming from the LG AC. There was never a shift in the fan or power of the AC either, unless I changed the fan setting. Only F1 seemed to initiate any kind of substantial shift. By that all I mean is an audible noise. I was in the room with the AC for a couple of hours. It was not cooling the room. [Proper settings, room secure, etc.] I had no choice other than to return it. I even got a prompt saying they would give a partial refund. I would not even keep this AC if they fully refunded me, as it is NOT working. I don't expect an AC to cool a room in 10 seconds flat during warmer summer days, but it needs to move the needle. This has some bad reviews and some good reviews, you're taking your chance if you want to buy it. Maybe you will have better luck. As far as any positives I can say since I don't want to appear to be unreasonable here we go: The remote control works perfectly fine. I like the cosmetics of the AC and the control panel. As far as the noise level, it wasn't unreasonable. I left energy efficiency at 3 stars because I cannot speak to that after only having the AC for a day. If the AC had just worked, it would have been great. I was going to even try to return it for a like item to try another, but Amazon's auto-return instructions told me I could not do that. Anyway, hopefully my review could help sway you one way or another on a potential purchase. Be prepared to have to return it. Edit- Bought a 14,000 BTU GE model AC from a nearby store. Works like a charm. Air was super cool and the low setting was on par with this LG model high setting. Again, I probably got a faulty model, but that’s my experience. ... show more
Reviewed in the United States on June 20, 2022 by Tyler
    • Measuring properly matters
Size: 15000 BTU Style: Wifi & High Efficiency Color: Bright White
My husband and I love this ac by LG. Pay very close attention to the dimensions. They are very precise. Installation was a bit more than we expected. But, that isn’t anyone’s fault but our own. We ended up having to remove the storm window to get it to fit. Again, not any fault by LG. My husband didn’t read the directions first. Once he read them he took the cover off the front and back. I helped him slide it in from the inside. He leveled it, out the coverings back on, and voila! It fit like a glove. We upgraded the btu from 12000 to 14000. The difference is amazing. This unit cools our entire first floor. Which is our enclosed front porch, living room, dining room, kitchen, bedroom and bathroom. I’d estimate the square footage to be around 900 square foot. Give or take a few. We especially love the quietness of this unit. The directional vents are large and puts out plenty of cold air. We have the WiFi feature, but don’t anticipate using it. But, who knows? In summary, we love this unit. Yes, a bit dicey getting it in the window. But, that was our fault. It looks great. Recommend this unit. Plus, Amazon delivered it 2 days sooner than expected. Which was so appreciated as our old ac stopped working. Thank you Amazon! ... show more
Reviewed in the United States on August 17, 2025 by Linda Johnson

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