18,000 BTU DUAL Inverter Smart wi-fi Enabled Window Air Conditioner

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  • Efficient Energy Saving
  • Maximum Cooling
  • Quiet Operation
  • ThinQ® Technology
  • Modern Design
  • Easy Installation and Usage
18,000 BTU DUAL Inverter Smart wi-fi Enabled Window Air Conditioner
$ 629.00
ENERGY STAR® 2018 Emerging Technology Award1

ENERGY STAR® 2018 Emerging Technology Award

The ENERGY STAR® Emerging Technology Award is given to innovative technologies that meet rigorous performance criteria to reduce energy use and lower greenhouse gas emissions, without sacrificing features or functionality.
1. Inverter Technology is a key attribute of LG’s new room air conditioners. It is used in conjunction with a variable-speed compressor and adjusts the 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 a 25% Combined Energy Efficiency Ratio (CEER) positive difference when compared with the ENERGY STAR® minimum CEER requirement.
2. The Energy Guide label estimates how much energy the appliance uses, compares energy use of similar products, and lists approximate annual operating costs.
3. The estimated annual energy cost is based on a national average electricity cost of 13 cents per kWh and seasonal use of 8 hours a day over a 3-month period. Your exact costs will depend on local utility rates and the type and source of your energy.
*When in sleep mode.
Sleep Mode1

Sleep Mode

This mode keeps operating noise to a minimum and turns the air conditioner off after a set time. The timer can be set from 1 to 7 hours.
24-hour On/Off Timer1

24-hour On/Off Timer

Up to 24 hours of operation time can be set, so that your air conditioner turns off when you plan it to.
Installation Kit1

Installation Kit

This window unit comes with our simple and convenient installation kit so you can set up your air conditioner with ease.
Filter Check Reminder1

Filter Check Reminder

The Clean Filter LED lights up to notify you that the filter needs to be cleaned.
Slide-out Washable Filter1

Slide-out Washable Filter

Maintenance is easy: simply remove the filter and wash it.
  • Multiple Fan Speed

    Sleep, Low, Mid or High 4-way speed adjustment.

  • Auto Restart

    When power failure occurs, your unit will resume its previous operation minutes after the power is restored.




    • Cooling BTU Performance
    • 18,000/18,000
    • Est. Cooling Area (Sq. Ft.)
    • 1000
    • CEER
    • 14.7 / 14.7
    • Dehumidification (Pts/hr)
    • 4.9
    • Yes
    • Refrigerant
    • R32
    • Noise Indoor dB (A) (High/Mid/Low/Sleep)
    • 59/56/53/44
    • Noise Outdoor dB (A) (High/Mid/Low/Sleep)
    • 65/63/61/55
    • Dry Air Flow (CFM)
    • 485
    • Wi-Fi Connection
    • Yes


    • Shipping Dimension (WxHxD)
    • 29.29 x 24.57 x 30.39 inch
    • Product Dimension (WxHxD)
    • 25.98 x 17.68 x 28.11 inch
    • Net Weight (lb)
    • 110
    • Shipping Weight (lb)
    • 128


    • Fan Speed Cooling
    • 4
    • Fan Speed Only
    • 4
    • Indoor Fan Type
    • Turbo
    • Air Deflection
    • 4-Way
    • Energy Saver Function
    • Yes
    • Thermostat Control
    • Thermistor
    • Remote Control
    • LCD
    • Compressor
    • Dual Inverter
    • Air Discharge Type
    • Top Discharge
    • Chassis Type
    • Slide In-Out
    • ThinQ® Technology
    • Yes
    • Auto Restart
    • Yes
    • Outdoor Vent / Exhaust
    • Yes
    • Timer
    • 24 Hr, On/Off
    • Filter Alarm Function
    • Yes


    • Voltage / 60 Hz
    • 208/230 V
    • Cooling Power (W)
    • 1,590/1,590
    • Cooling Current (A)
    • 8.8/7.9


    • Color
    • White
    • Installation Kit
    • Yes
    • Air Filter
    • Washable


    • Parts & Labor
    • 1 Year Parts and Labor


    • UPC
    • 048231600132

What people are saying

Rated 5 out of 5 by from Works fantastic We don’t have central air and I bought this during a heat wave and out 1,600 square foot house was in the 80-90’s. This unit cooled my house right off!
Date published: 2021-07-11
Rated 5 out of 5 by from Very nice unit at a great price point. I bought this unit to cool and dehumidify a garage/shop. Since the area is only about 725 square feet, I knew this 18,000 BTU model would be more than enough. Installation was very straight forward. I built in the existing 4 foot by 2 foot window opening to be only slightly larger than the unit itself, making it unnecessary to use the expanding "wings" that come with it. I then screwed down a 1 inch thick piece of hard maple to the sill to extend out of the window by about 12 inches for extra support. Being an 18,000 BTU model, I also ran wiring for a 240 volt outlet and mounted that just above the window opening. Having the main "guts" of the unit easily removed from the metal cabinet makes getting everything installed so much easier; no more holding a very heavy air conditioner in the window opening while making critical measurements. The end user only needs to mount the outer cabinet and then can easily (with the help of a friend) lift and slide the air conditioner itself into the cabinet. The unit cools down my insulated garage in no time and removes excess humidity at the same time. The low current draw at 240 volts also allows me to run a table saw, dust collector and the air conditioner all at the same time with no issues at all. LG makes a great product and I'm very happy with my purchase!
Date published: 2021-07-08
Rated 5 out of 5 by from Surprisingly Quiet I've always trusted LG Technology and Quality. 18000 BTU air conditioners are normally loud and costly to run. Not this one!! The Dual Inverter is a game changer. Another LG appliance home run. BTW this unit replaced a 14 year old 18k LG.
Date published: 2021-06-29
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Ask your questions. Share your answers.
Please review the detailed product information and help guides in the
Product Support section for this product prior to posting a question.

I have a 40" wide window, will the side curtains stretch to fit that?

Asked by: serpanterra
Hello Serpanterra. The LG 18,000 BTU DUAL Inverter Smart wi-fi Enabled Window Air Conditioner, Model # LW1817IVSM is designed for installation in standard single or double-hung windows with actual opening widths from 29" to 41". That air conditioner has a width of 25.98" so when it is placed centrally in your 40" opening, you will have openings of 7.01" on either side of the air conditioner. The curtains are designed to cover an opening of 41" which means they will cover up to 7.51" on either side of the air conditioner after installation so they will adequately cover your 40" opening...^IFV
Answered by: Ivanf
Date published: 2021-06-25

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
I have the same problem, the temp setting has to be above 76 or 77 for the unit to shut down.
Answered by: Ike2
Date published: 2019-07-29

Help. Have a lg ac inverter.  The control does not communicate with unit.  Have bought three remotes....nothing.  Have also original.  Travel with it to see if anyone would help.  Any good reps in Washington DC metro area?

Asked by: Carl21
Please contact LG Customer Support so that we can better investigate your issues and assist you towards a resolution. You can contact our Customer Support by any of the below options: Phone: 1-800-243-0000 LiveChat: https://www.lg.com/us/support/chatbot Email: https://www.lg.com/us/support/email-appointment Facebook Messenger: https://www.facebook.com/LGUSA/ Twitter: @LGUSSupport The LG Community Forum is also a great resource for getting help from other LG customers: https://lgcommunity.us.com/
Answered by: ChrisPSM
Date published: 2019-07-15

I am looking for a quiet thru wall unit.does LG make a dual inverter they wall unit or something comparable??

Asked by: Michael z
I just had this model (professionally) recommended and installed by an HVAC company to replace a 40 year old window unit that had been instaled through the wall. In my case, the hole in the wall was already framed out like a window but with no actual window. The framing for it is sturdy and all the grills outside are free and clear. So I suppose you could do it if you have a similar framed out space for it. And it is very quiet.
Answered by: mltmc
Date published: 2019-09-11

What kind of plug is on this unit- a 110 or 220?

Asked by: ADAMAS
The LG 18,000 BTU DUAL Inverter Smart wi-fi Enabled Window Air Conditioner, Model # LW1817IVSM has to be plugged into a standard 240 V, 3-wire grounding receptacle rated at 15 A, 60Hz. The NEMA configuration for the plug is 6-15P (two horizontal blades over a d-shaped grounding pin)...^IFV
Answered by: Ivanf
Date published: 2021-05-30

Can this unit be used as a thru the wall AC.??

Asked by: Michael z
The LG 18,000 BTU DUAL Inverter Smart wi-fi Enabled Window Air Conditioner, Model # LW1817IVSM cannot be used as a Through-the-Wall AC...^IFV
Answered by: Ivanf
Date published: 2021-06-01

Will this unit fit inside a 26.5 inch wide window opening if used without side fillers?

Asked by: daveocoolguy
The LG 18,000 BTU DUAL Inverter Smart wi-fi Enabled Window Air Conditioner, Model # LW1817IVSM has a width of 26" without the front grille so it will fit into an opening of 26 1/2", but you definitely cannot use the left and right curtain panels, so you will need to find some way of closing the openings on either side of the air conditioner after installation. You also need to take into consideration that you only have a 1/4" of room on either side of the air conditioner to work with when installing it which will not be enough space to fit your hands through to hold the unit securely while installing it. The unit weighs 110 lbs and that might be a challenge if you cannot get your hands around the unit to hold is securely to install it...^IFV
Answered by: Ivanf
Date published: 2020-07-19

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: 2019-08-17
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