LG White 12,000 BTU Thru-the-Window Air Conditioner - Energy Star

Model #LW1217ERSM

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MSRP: $529.00 ?


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CA Prop. 65 CALIFORNIA RESIDENTS ONLY - WARNING: Cancer and Reproductive Harm -

Tech Specs

Fuel Type Electric
Certifications Energy Star
Voltage 115
Cooling Amps 9.3 Amps
Temperature Options Cooling Only
Compatible Home Automation Systems Nest

Heating & Cooling

Items Included Remote Control
Chassis Type Slide Out
CEER (Combined Energy Efficiency Rating) 12
SEER (Seasonal Energy Efficiency Rating) 12.1
Installation Type Window
Assembly Required No


Weight 81
Type Thru-the-Window
Appliance Color White


Height 15"
Width 23.63"
Depth 22.19"
User Reviews
16 June 2022

I was looking for a unit that I could run off a generator and at least cool some of my house and this surely works! It's installed in a Florida room approx. 10'x22' (220sf) and I can run it with the sliding glass door open and cool my living room, dining room and kitchen to a comfortable/reasonable...

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Aj madison.34968990
30 July 2019

[This review was collected as part of a promotion.] We purchased this LG window AC recently. It runs great, is quiet, and cools wonderfully. We are considering purchasing another unit for a different part of our home as we are trying to keep our electric bill in check during this very hot summer.

1 June 2022

I have had this air conditioner for almost 2 weeks now. It is much quieter than my previous air conditioner and cools much more quickly. The WiFi feature is very helpful when I am out of my apartment. In short, it does everything I want it to do and at a reasonable price.

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    Features/Settings, Performance, Quality

Aj madison.34968990
5 July 2019

This is the second Texas summer with the LG A/C, and so far I am completely happy with the performance; I mostly cool a 500 sq ft area (master bedroom and bathroom), and it can easily keep the area way colder than most people like; when I have the door open to the rest of the house (1100 sq ft), it...

20 August 2022

95 degree weather for days and we are cool. Thank goodness. The research done convinced me this was the best unit. Very easy instructions to install and works as described . We are cool and happy. This is the second L G appliance bought but not the last!

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Aj madison.34968990
5 August 2019

[This review was collected as part of a promotion.] Thought I might be pushing its limits for BTU's vs. room size. Am w/in its recommended sq.ft. but have vaulted ceiling. I Run a ceiling fan and have no problem cooling the area down. Even to the point of being asked if could turn the AC off.

3 June 2022

Looking to replace the old one, not this brand. and had to search to find one that fit the wall opening with a WIFI ability..This one fit the bill. Installation was a snap. All went perfectly. Couldn't be happier with the performance & features.

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    Style/Design, ease of use, Features/Settings, Performance, Quality

Aj madison.34968990
9 April 2019

[This review was collected as part of a promotion.] If you bought this online I recommend before turn on AC wait until 24 hours (you know by this how is the transport of packages), about the WiFi technology form AC I tested both on/off with my WiFi and cellphone network.. I don’t had any problem.

20 May 2022

We just bought this a few days ago and I’m already in love! Keeps my living room super cool and when you’ve been without for a month you know. It’s wifi capable and I love that feature. I can use my Alexa device to control it. It came with a remote as well.

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    ease of use, Features/Settings, Performance

Aj madison.34968990
6 July 2019

Bought tow of these and really like them. Love having the remote access to adjust the temp/etc. The scheduling feature in the Smartphone app is basic and allows for on/off scheduling. Wha tis needed is the ability to vary/set the desired temperature as part of the schedule also....

Product Description

Cool a little while you save a lot. With 12,000 BTU this Smart (Wi-Fi Controllable) Energy Star Air Conditioner will save you energy and money while cooling a room up to 550 square feet. Plus, we've got you covered with Auto Restart, so when storms, high wind or heat waves cause a power outage, your unit automatically turns back on when power returns. This unit works with your Smartphone control (Apple IOS and Android).


Control all your LG appliances from one App. SmartThinQ gives you full feature control from anywhere. Including temperature, scheduling, mode and fan speed.

Power Failure Auto Restart
Living isn't always easy in the summer. There are storms, high winds and extreme heat that can lead to power outages. Keep yourself covered with Auto Restart, which automatically turns the unit back on when power is restored.

Electronic Touch Controls with Remote
Control the temperature of your room with just a push of a button. Our stylish remote control is easy to use and allows you to cool down from across the room.

Works with Nest

Product Highlights
  • Width: 23.63"
  • Height: 15"
  • Depth: 22.19"
  • CFM: 265
  • Fuel Type: Electric
Still Have Questions?
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