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Key Features

  • Quiet Operating: 44dB LoDecibel™
  • Up to 25% more energy efficient than the minimum ENERGYSTAR® certification requirement with DUAL Inverter technology
  • LG SmartThinQ® Technology smartphone control
Suggested Price


Suggested Price

DUAL Inverter Compressor™

LG air conditioners with Dual Inverter Compressor™ eliminate unnecessary noise and provide cool temperatures with up to 25% more energy efficient than the minimum ENERGY STAR® certification requirement*. Experience the powerful yet quiet performance of LG’s ultra-efficient, revolutionary inverter technology.


Maximum Cooling for Maximum Comfort

LG DUAL Inverter Window air conditioners provide exceptional cooling power that will keep you and your family cool, comfortable and in control.


The Coolest Energy Savings Around

Unlike typical air conditioners that turn on and off to adjust temperatures, the DUAL Inverter Compressor™ constantly adjusts its speed to maintain desired temperature levels. That means less fluctuation and up to 25% more energy efficient than the minimum ENERGY STAR® certification requirement*.

*Inverter Technology is a key attribute of LG’ new room air conditioners. It is used in conjunction with a variable-speed compressor and adjusts compressor motor speed to regulate temperature. This is more energy efficient than non-Inverter Technology room air conditioners, which turns the compressor either on or off to regulate temperature. In Department of Energy approved testing, LG’s Inverter room air conditioner model (LW1817IVSM) showed 25% Combined Energy Efficiency Ratio (CEER) positive difference when compared with ENERGY STAR® minimum CEER requirement.


Quiet Operation

LG air conditioners operate at low sound levels of just 44dB, thanks to LG's unique BLDC Motor and DUAL Inverter Compressor™, which eliminate unnecessary noise and allow for smooth operation that you’ll barely notice.

Total Control From Your Phone

Total Control From Your Phone

Access your air conditioner anytime, anywhere on any wi-fi enabled device, thanks to LG's exclusive SmartThinQ® app. Turn your air conditioner on or off or change the temperature right from your smartphone. It even works with Amazon Alexa and the Google Assistant, so you can control your air conditioner with the sound of your voice.


What People Are Saying

Rated 5 out of 5 by from Quiet I bought this air conditioner when our old one quit! Love how quiet this unit runs and keeps our downstairs so cool needed to turn it up to 74 and 75 not to freeze!! We still how 90 degree days this time of the year and was so glad we went ahead and purchased this now! So far I am really impressed with our new unit!
Date published: 2018-10-16
Rated 5 out of 5 by from Artic Blast What a great air conditioner cools down our room really fast. Super quiet and we can run at a lower speed and get the same results.It is extremely easy to install. It fit perfectly in our existing opening. The instruction manual is extremely easy to follow. Their is also a air filter which really helps for cleaner air. The best feature about this air conditioning unit is the LG SmartThinQ which allows you to use the remote to control the unit. My Husband especially love the remote he now longer has to get up to turn down the air conditioner when I freeze him out.
Date published: 2018-09-12
Rated 5 out of 5 by from Awesome! Thus is an awesome air conditioner. My husband installed it two days ago and wow what a difference it has made. I have an open floor plan of my living,kitchen and dining room and it keeps all that space cool and comfortable. With the heat wave we've been having here it has been a blessing to have. I love that it runs so quiet you can't hear it at all. It has a remote control which is really convenient. I absolutely love the feature of the app,I don't even have to be home and I can control the temp. The auto restart feature is really neat! We get alot of storms here and our power goes out 9 times out of 10 when they're really bad ones and I love the fact that when my power is restored the unit will automatically turn back on. All and all this is an awesome air conditioner by LG which is also one of my favorite brands,and I would definitely recommend to others.
Date published: 2018-08-29
Rated 5 out of 5 by from Mkeys2 Greatness the smart air-condition are wonderful great perfect a c
Date published: 2018-08-27
Rated 5 out of 5 by from Cools a large area quickly This air conditioner is super quiet and cools down a large are very quickly. The wifi enabled connection is very convenient. I would definitely recommend this for someone looking to cool a large area. However, it does not plug into a regular outlet.
Date published: 2018-08-22
Rated 5 out of 5 by from So quiet! Installed the A/C several weeks ago and it has been working great! The unit is so quiet that you can hardly hear it at all. So far love this product!
Date published: 2018-08-22
Rated 5 out of 5 by from Run very well and very quiet I bought it 3 weeks ago to cool down a 750 sqfeet walk-in cooler used as a wine cellar to a 60 degrees temperature.Work like charm.
Date published: 2018-08-04
Rated 5 out of 5 by from unbelievably quiet finished installing it a few days ago and im floored at how quiet it is without loosing any ability to cool. excellent machine
Date published: 2018-08-01
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Ask your questions. Share your answers.
Please first review the detailed product information and help guides in the Product Support section for this product prior to posting a question.

I'm really interested in this unit....Can it be installed through the wall? I want to replace and existing unit that measures 26x18 approximately.

Asked by: zvocio
Your interest in the LG 18,000 BTU DUAL Inverter Smart wi-fi Enabled Window Air Conditioner, Model # LW1817IVSM is greatly appreciated. This air conditioner requires a standard single-hung or double- hung window for proper installation. It is designed for installation in standard single-hung or double-hung windows with actual opening widths from 29" to 41". The top and bottom window sashes must open sufficiently to allow a clear vertical opening of 19" from the bottom of the upper sash to the inside sill. The outside of the cabinet must extend outward for at least 12" and there should be no obstacles, such as a fence or wall, within 20" from the back of the cabinet because it will prevent heat radiation of the condenser. Restriction of outside air will greatly reduce the cooling efficiency of the air conditioner. All side louvers of the cabinet must remain exposed to the outside of the structure and other types of non-window installations, including using wall sleeves, or holes in walls are not recommended...^IFV
Answered by: LGJoel
Date published: 2018-07-20

Why is It that when my AC is on energy saver it only shuts completely down if the temperature is set above 75. At 75 degrees on energy saver the unit continues to run never shuting off. 

Asked by: Darlene hol
Hello, Energy Saver mode is the same as Cool mode except in this mode, the compressor and fan turn off when the set temperature is achieved. Then, approximately every 3 minutes the fan turns on to allow the unit sensor to accurately determine if more cooling is needed. Whether the unit keeps running will depend on many factor suck as desired temp, room temp, outside temp, units installation and rooms insulation. ^AC
Answered by: Amber C
Date published: 2018-06-14

Why doesn't the LW1817IVSM come with a protective grille on the back of the unit. All of the aluminum fins are exposed? Was it just to save money? Why doesn't your tech support know what I am talking about? looks like a part is missing

Asked by: ScubaRay
Hi ScubaRay. We are sorry to hear that you are not satisfied with the design of the LG 18,000 BTU DUAL Inverter Smart wi-fi Enabled Window Air Conditioner, Model # LW1817IVSM. None of our Window Air Conditioners feature a protective grille on the back and all the fins are exposed. Thank you for your observation. We will be sure to pass that on to our engineering team...^IFV
Answered by: LGJoel
Date published: 2018-05-30
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