Search  for anything...
LG

LG 18,000 BTU Window Air Conditioner, 230/208V, Cools 1,000 Sq.Ft. (25' x 40' Room Size), Quiet Operation, Electronic Control with Remote, 3 Cooling & Fan Speeds, Auto Restart, White

  • Based on 17,161 reviews
Condition: New
Checking for inventory...

Notify me when this product is back in stock

$799.95 Why this price?

Buy Now, Pay Later


As low as / mo
  • – Up to 36-month term if approved
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

This item is eligible for return within 30 days of receipt

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: Unavailable
Fulfilled by superior sales
Available payment plans shown during checkout

Size: 18000 BTU


Style: Electronic & High Efficiency


Color: White


Features

  • Multiple Fan Speeds: This powerful 18,000 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
  • Maximum Usability: The window unit includes easy to use electronic controls with a convenient remote control; Control your window air conditioner from across the room and without leaving your favorite spot
  • Auto Restart Function: After a power failure, Auto Restart will automatically turn the window unit back on when power is restored; This feature automatically restores your unit's settings following a power outage so you don't have to
  • Quick and Easy Maintenance: The filter light reminder lets you know when it's time to simply slide out the washable filter for cleaning
  • Cools Rooms up to 1,000 Square Feet: LW1816ER is ideal for cooling medium rooms (25' X 40'); Fits window openings 29"-41"W x 19"H

Description

The LG LW1816ER is a top choice for cooling medium to large rooms of up to 1,000 square feet, providing reliable and efficient cooling to create a comfortable indoor environment. With 3 cooling and fan speeds, this window unit allows you to customize settings to meet your cooling preferences and needs. The inclusion of a 24-hour timer enables you to establish a cooling schedule tailored to your lifestyle. Featuring 4-way air deflection, the LG LW1816ER allows you to direct the airflow precisely where it is most needed, whether you require focused cooling, effective dehumidification, or the circulation of fresh air throughout the room. In the event of a power outage, the auto restart feature provides added convenience by automatically restarting the unit once power is restored. Convenience is further enhanced by the inclusion of a remote control, allowing you to adjust the air conditioner's settings from a distance with ease. The easy window installation kit simplifies the setup process. The LG LW1816ER is designed for ease of maintenance, with a removable and washable filter that ensures the window unit ac operates efficiently. The LG LW1816ER is a powerful and versatile air conditioner suitable for cooling medium to large rooms.

Specs & Other Info

SpecificationDetails
BrandLG
Dehumidification Capacity4.5 Pints
Cooling Capacity18000 BTU
Key FeaturesFilter Reminder, Energy Saving, Omni-Directional Airflow, Built-in Dehumidifier
Dimensions (DxWxH)26" x 28.13" x 17.7"
Energy Star CertifiedNo
Introduction Year2016
SEER Rating10.3
ColorWhite
Power Supply230 Volts
Weight130 lbs
ManufacturerLG
OriginChina
ModelLW1816ER
Form FactorStand Alone
FinishWhite
Assembly RequiredNo
Warranty1-Year Parts & Labor
Batteries RequiredYes
Included in BoxAir Conditioner, Remote Control, Mesh Filter, Installation Kit, Manual/Installation Instructions, Warranty
Recommended Coverage AreaUp to 1000 Sq Ft
Noise Level61 dB

Frequently asked questions

The LG 18,000 BTU Window Air Conditioner is designed to effectively cool spaces up to 1,000 square feet, making it suitable for rooms approximating 25' x 40' in size.

This air conditioner provides quiet operation, which means it won't disrupt the peace of your home or office. It comes with electronic control with a remote for easy adjustments from anywhere in the room. Additionally, it offers 3 cooling and fan speeds, giving you flexibility to find the perfect setting. The auto restart function ensures the unit turns back on with the same settings after a power outage.

The unit is compatible with 230/208V outlets, which may require a special electrical outlet that is different from the standard 110/120V outlets in most homes. It's important to ensure your home can accommodate this voltage requirement.

Proper installation of the LG 18,000 BTU Window Air Conditioner requires a window that can support the weight and size of the unit. For optimal performance and safety, it's important to follow the manufacturer's instructions closely or hire a professional for installation. Additionally, because of its 230/208V requirement, ensure your electrical system can support this air conditioner.

Top Amazon Reviews

🚀 Abunda's Overview

This is our summary and key points to consider based on customer reviews.


The LG 6000 BTU air conditioner has received positive reviews for its efficient cooling, quiet operation, and unique features. Users have highlighted its low noise level compared to similar units, the energy-saving mode that effectively maintains room temperature with minimal sound, and the angled cooling grill that distributes air more evenly throughout the room. Despite minor concerns about installation specifics and external sounds when the unit is off, the overall performance and user satisfaction seem high.

Pros

  • 🌬️ Efficient cooling capability that quickly lowers room temperature
  • 🔇 Low operational noise, making it suitable for bedrooms and quiet environments
  • 💡 Energy-saving mode optimizes performance while reducing noise and power consumption
  • 🌐 Unique angled cooling grill design for better air distribution
  • 👌 Fits well in windows with limited height clearance, broadening its compatibility with different home designs

Cons

  • ⚙️ Installation may require additional efforts or modifications in homes with unique window setups
  • 🔊 External noises may be more noticeable with the air conditioner installed
  • 🔧 Some features and components mentioned in the manual may not align with the actual product

Should I Buy It?

If you're in search of a quiet, efficient air conditioner that performs well in both humid and dry climates, this LG model deserves strong consideration. Its energy-saving features and unique design for improved air distribution set it apart from competitors. While installation might be tricky for some window types, the overall benefits and positive user experiences suggest it's a worthwhile investment for those prioritizing comfort and low noise.


  • 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
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

  • 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

  • Could be quieter for such a small AC
Size: 6000 BTU Style: Electronic & Standard Color: Bright White
LG used to be one of the quietest AC brands, but this one is a disappointing on the noise level side for one of the smallest BTU window AC units. Other than the noise, it's a nice sleek modern design and the nice thing is that there is a lights of mode that turns off all indicators and leds that won't interrupt you if you like sleeping in a dark bedroom. The Remote control is super light and almost flimsy, but it works ... show more
Reviewed in the United States on July 27, 2025 by Kevin

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for inventory...