Skip to ContentsSkip to Accessibility Help
Free +view Portable Monitor with purchase of select 2022 gram laptops
learn more
Search
Close
item successfully added toCartitem in cart
Menu
  • LG SIGNATURE
  • LG ThinQ logo
NOTIFY ME
Find a Retailer
Add to Wishlist

KEY FEATURES

  • Cooling: 18,000 BTU/Heating: 12,000 BTU
  • Estimated Cooling Area 1,000 Sq. Ft
  • Multiple Cooling/Heating Speeds
  • Easy To Use Electronic Controls
  • Window Installation Kit Included
18,000 BTU Window Air Conditioner, Cooling & Heating
$ 689.00

Cooling & Heating

LG window air conditioners provide powerful cooling and heating. Stay comfortable all year long, even in extreme climate, with our advanced technology.

Quiet Operation

LG Window Air Conditioners operate at sound levels as low as 57dB (when in low mode) eliminating unnecessary noise for smooth operation that you'll barely notice.
Modern Design

Made to Perfection

LG window air conditioners add powerful performance and stable durability to perfectly match your window frame.

Easy Installation

LG window air conditioners are designed for easy and efficient installation and come with a washable and resusable air filter. Before buying an air conditioners, measure your room to find out how many BTUs you need.

    Measure Room icon

    Measure Room

    Match Room Size to BTUs icon

    Match Room Size to BTUs

    Verify Size icon

    Verify Size

    Check Electrical Requirements icon

    Check Electrical Requirements

Horizontal Table
Room Size (Sq. Ft.) 150 (10'x15')
BTUs/hr up to 5,000
Room Size (Sq. Ft.) 260 (13'x20')
BTUs/hr 6,000
Room Size (Sq. Ft.) 280 (14'x20')
BTUs/hr 7,000
Room Size (Sq. Ft.) 340 (17'x20')
BTUs/hr 8,000
Room Size (Sq. Ft.) 450 (18'x25')
BTUs/hr 10,000
Room Size (Sq. Ft.) 550 (22'x25")
BTUs/hr 12,000
Room Size (Sq. Ft.) 800 (25'x32')
BTUs/hr 15,000
Room Size (Sq. Ft.) 1,000 (25'x40')
BTUs/hr 18,000
Room Size (Sq. Ft.) 1,300 (33'x40')
BTUs/hr 22,000
Room Size (Sq. Ft.) 1,560 (39'x40')
BTUs/hr 24,000
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.

Maximum Usability

Operate with LED display and simple selection control panel, up/down temperature adjustments, and fan speed selection, using the full-featured remote without leaving your bed, workspace, or couch.

  • 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.

  • Multiple Fan Speed

    Low, or High 2-way adjustment.

  • Auto Restart

    If the power cuts off, your unit resume its previous operation shortly after the power is restored.

Download Energy Guide

Summary

    • Type
    • Window Air Conditioner
    • BTU
    • 18,000

PERFORMANCE

    • BTU performance (Cooling)
    • 17,500/18,000
    • BTU Performance (Heating)
    • 9,800/12,000
    • EER
    • 11.2
    • CEER
    • 11.1/11.1
    • Dehumidification (Pts/hr)
    • 5.5
    • Dry Air Flow (CFM)
    • 430
    • dBA Level (High/Mid/Low/Sleep)
    • 61/57
    • Est. Cooling Area (SQ.FT)
    • 1000
    • Room Size
    • 25' x 40'
    • Fits Windows
    • 29'-41" W x 18" H

DIMENSIONS/WEIGHT

    • Shipping Dimension (WxHxD)
    • 29.38 x 21.19 x 33.00 inch
    • Product Dimension (WxHxD)
    • 25.50 x 16.84 x 30.50 inch
    • Net Weight (lb)
    • 126
    • Shipping Weight (lb)
    • 139

FEATURES

    • Fan Speed Cooling
    • 2
    • Fan Speed Heating
    • 2
    • Fan Speed Only
    • 2
    • Indoor Fan Type
    • Blower
    • Air Deflection
    • 4-Way
    • Energy Saver Function
    • Yes
    • Thermostat Control
    • Thermistor
    • Remote Control
    • Yes
    • Compressor
    • Rotary
    • Air Discharge Type
    • Side Discharge
    • Chassis Type
    • Slide In-Out
    • Auto Restart
    • Yes
    • Outdoor Vent / Exhaust
    • Yes
    • Timer
    • 24 Hr, On/Off
    • Filter Alarm Function
    • Yes

ELECTRICAL RATINGS

    • Voltage / 60 Hz
    • 208/230 V
    • Cooling Power (W)
    • 1,560/1,600
    • Cooling Current (A)
    • 7.8/7.3
    • Heating Power (W)
    • 3,100/3,670
    • Heating Current (A)
    • 15.0/16.0

MATERIALS/FINISHES

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

WARRANTY

    • Parts & Labor
    • 1 Year Parts and Labor

UPC CODES

    • UPC
    • 048231379526

What people are saying

Rated 4 out of 5 by from replacement AC/heater We had an LG AC/Heater in our living room window. It kept us cool through 5 Florida summers. When the compressor stopped working we tried to have it repaired, but couldn't find anyone who would/could repair a window unit. We bought a new unit that has more BTU's and hopefully it will last longer than 5 years. It is a beautiful unit with an easy to clean the filter. The one problem we have with the unit is how loud it is when running, even on Fan 1. In order to hear the TV we have to turn it off.
Date published: 2022-06-18
Rated 4 out of 5 by from Does the job I use it in my upstairs garage the heating and cooling feature is very convenient this is my second unit thanks
Date published: 2022-04-24
Rated 5 out of 5 by from Awesome product I bought this product in September 2020. And oh my goodness, I love it. I loved it so much I told my daughter about it and she bought one too. It cools my home, and I don’t have to worry when it gets cold. I just turn it to heater mode. I love it so much. Thinking about getting another one for my bedroom.
Date published: 2022-01-11
  • y_2022, m_6, d_25, h_21
  • bvseo_bulk, prod_bvrr, vn_bulk_3.0.32
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_99
  • loc_en_US, sid_MD05601882, prod, sort_[SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_lg
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • CLOUD, getReviews, 9ms
  • REVIEWS, PRODUCT
See All Reviews

We're here to support you with our product.

View LW1816HR Product Support

Choose a support option below:

ASK & ANSWER

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.

What type of bracket to mount in window do you suggest for this unit?

Asked by: Lake11
If your local building codes require you to have a bracket for the LG 18,000 BTU Window Air Conditioner, Cooling & Heating, Model # LW1816HR, you should contact your buildings supervisor or contact your local building inspector to inquire about what type of bracket is permitted...^IFV
Answered by: Ivanf
Date published: 2022-05-10

I'm looking at a new "refurbished" model on a website. Does LG refurbish and does a warranty still apply?

Asked by: bputnam
You will need to contact the retailer that is selling this LG 18,000 BTU Window Air Conditioner, Cooling & Heating, Model # LW1816HR as a refurbished product. The product page for the air conditioner on the website that you see the product advertised should indicate whether it is Manufacture refurbished or Seller refurbished. Not all refurbs are the same. Third-party refurbished products are available. Manufacturer refurbished means it was checked out with any problems corrected by either the maker themselves or a firm contracted by the maker to handle returned merchandise, usually comes with a fresh manufacturer's warranty of some sort. Seller refurbished means the seller fixed any problems themselves...^IFV
Answered by: Ivanf
Date published: 2022-01-14

Freezes up and compressor seems to still run when cut off even on heat mode only 1 yr old. can't find receipt from Home Depot so can't get warranty work done on it filter has been cleaned regular no dirt in cabinet or back side of AC

Asked by: Glen 43
That's not good! We're sorry to see that you've run into these issues with your air conditioner. We'll need to gather some additional details from you in order to see how we can best assist. Please reach out to a specialist via Twitter @LGUSSupport or via Facebook https://www.facebook.com/LGUSA/ ^CP
Answered by: ChrisPSM
Date published: 2019-11-11

What is the dBA level (indoor/outdoor) mean?

Asked by: Opietaylor23
The dBA Level (Indoor / Outdoor) for the LG 18000 BTU Window Air Conditioner, Cooling & Heating, Model # LW1816HR are what are known as A-weighted decibels. A-weighted decibels abbreviated dBA, or dBa, or dB(a), are an expression of the relative loudness of sounds in air as perceived by the human ear. In the A-weighted system, the decibel values of sounds at low frequencies are reduced, compared with unweighted decibels, in which no correction is made for audio frequency. For example, normal conversation is rated at 60 dBA, so the indoor rating of 61 dBA for this Air Conditioner means that it will be slightly louder indoors as normal conversation. In terms of subjective loudness, a 1 dB change yields just over a 7% change...^IFV
Answered by: Ivanf
Date published: 2019-04-09

Can I mount this through the wall? Or is it intended solely as window unit?

Asked by: FBC_Texas
The LG 18,000 BTU 230/208-Volt Window Air Conditioner with Cool, Heat and Remote, Model # LW1816HR is a window air conditioner and as such, it requires a standard single-hung or double-hung window for proper installation. It cannot be installed in a wall sleeve. ^CP
Answered by: ChrisPSM
Date published: 2021-07-30

What size plug is used? Is it a 110 or 220

Asked by: Justinfehrenbach
The LG 18000 BTU Window Air Conditioner, Cooling & Heating, Model # LW1816HR has a power cord that includes a curent interrupter device that has to be plugged into a standard 250 V, 3-wire grounding receptacle protected by a 20 AMP. time delay fuse of a 20 AMP circuit breaker. The NEMA Conforguration for the plug is 6-20P (ove vertical blade, one horizontal blade and a 'D-shaped' grounding pin...^IFV
Answered by: LGJoel
Date published: 2020-05-08

I plan on placing this unit in a custom AC box, made out of aluminum. How much space is needed around the unit so it doesn't overheat?

Asked by: Geno900
The LW1816HR is designed for installation in standard single-hung or double-hing windows with actual opening widths from 29" to 41". The top and bottom window sash must open sufficiently to allow a clear vertical opening of 18" from the bottom of the upper sash to the window stool. This unit is not designed to be installed in any type of a sleeve or box as that will prevent proper operation and void its warranty. ^AC
Answered by: Amber C
Date published: 2019-09-18

The lever for exhaust-fresh air is a push pull action.  Which position is for no fresh air? 

Asked by: Deputydog
Pull is open and pushed in is closed. ^AC
Answered by: amber
Date published: 2018-01-16
  • y_2022, m_6, d_25, h_21CST
  • bvseo_bulk, prod_bvqa, vn_bulk_3.0.32
  • cp_1, bvpage1
  • co_hasquestionsanswers, tq_23
  • loc_en_US, sid_MD05601882, prod, sort_[SortEntry(order=LAST_APPROVED_ANSWER_SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_lg
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • CLOUD, getContent, 5ms
  • QUESTIONS, PRODUCT

Compare (0)

Compare (0)
1Free shipping not available for parts and accessories. Free shipping to qualifying US destinations in the contiguous United States; not available for P.O. Boxes, addresses outside the contiguous 48 states, international addresses, Army Post Office (APO), Diplomatic Post Office (DPO) and Fleet Post Office (FPO).

Prices, promotions and availability may vary by model, store, and online. Prices subject to change without notice. Quantities are limited. Check with your local retailers for their final price and availability.

Stay cool and comfortable—even when Mother Nature turns up the heat. LG air conditioners give you the power and technology you need to maintain the perfect temperature all year long.

LG air conditioners give you the power to cool one room, or several, with just the touch of a button. Designed for the way you live, they're available in a wide range of styles—so you can create a space that's cool, comfortable and stylish, such as:

Portable: Take cool breezes with you from room to room, house to house, or from home to work. Boasting sleek, streamlined designs, powerful air throw, and incredibly quiet operations, our portable air conditioners offer the ultimate in flexibility.

Window: With an air conditioner that was created to fit perfectly inside your window frame, you can cool your space without disrupting your design. And with some models giving you the power to heat and cool your space, they can help you create a comfortable home all year long.

Casement: Created specifically for casement windows, this innovative range allows you to efficiently cool your home while maintaining its original look and feel.

Wall: LG wall units offer a more permanent solution to your cooling needs. Boasting powerful performance and innovative features, like multiple cooling and fan speeds, as well as a universal fit sleeve for a custom look, they offer a lasting solution to your cooling needs.

Cool your space with an LG air conditioner. Designed for efficiency, power and style, our innovative range of air conditioners allows you to enjoy cool breezes while maintaining the look and feel of your home. Explore our innovative collection and keep your family comfortable even during the hottest—and most humid—months of the year.

*Purchase an eligible LG gram laptop 2022 model and an LG gram +view IPS Portable Monitor (16MQ70.ADSU1) in a single transaction on LG.com and receive $349.99 instant additional savings off of the pre-tax sale price. Available only on LG.com June 6 - July 4, 2022. Savings will be reflected in the cart when all offer requirements are met. Maximum number of products of the same category allowed to qualify for the discount is one (1). If any of the qualifying items are removed from the cart or part of the order is cancelled or returned, the promotional savings will be void. Prices and offers are non-redeemable for cash, non-transferable and may not be combined with other offers/discounts. Availability, prices and terms of offer are subject to change without notice. Quantities are limited.

Eligible portable monitor model: 16MQ70.ADSU1
Eligible laptop models:14Z90Q-K.ADB9U1, 15Z90Q-P.ADB9U1, 15Z90Q-P.ADS9U1, 16T90Q-K.ADB8U1, 16T90Q-K.ADS8U1, 16Z90Q-K.AAB8U1, 16Z90Q-K.AAS8U1, 17Z90Q-K.AAB8U1

*Purchase an eligible LG gram laptop 2022 model and choose expedited shipping at checkout to receive $22.54 instant additional savings off of the pre-tax sale price. Available only on LG.com June 6-July 4, 2022. Savings will be reflected in the cart when all offer requirements are met. If any of the qualifying items are removed from the cart or part of the order is cancelled or returned, the promotional savings will be void. Prices and offers are non-redeemable for cash, non-transferable and may not be combined with other offers/discounts. Availability, prices and terms of offer are subject to change without notice. Eligible Laptop models: All Laptops models

1Purchase an eligible TV and sound bar bundle package in a single transaction on LG.com June 6 - July 10, 2022 and receive instant additional savings of up to $600 off the pre-tax sale price of the combined purchase of the TV and sound bar. Savings will be reflected in the cart when all offer requirements are met. If any of the qualifying items are removed from the cart, returned or part of the order is cancelled, the promotional savings will be void. TV and sound bar purchase must be in the same order. Amount of savings depends on the qualifying sound bar model purchased with the qualifying TVs. Prices and offers are non-redeemable for cash, non-transferable and may not be combined with other offers/discounts. Availability, prices and terms of offer are subject to change without notice.

Qualifying TVs: OLED55A1PUA, OLED55A2PUA, OLED55B2PUA, OLED55C1PUB, OLED55C2PUA, OLED55G1PUA, OLED55G2PUA, OLED65A1PUA, OLED65A2PUA, OLED65B2PUA, OLED65C1PUB, OLED65C2PUA, OLED65G1PUA, OLED65G2PUA, OLED77A1PUA, OLED77A2PUA, OLED77B2PUA, OLED77C1PUB, OLED77C2PUA, OLED77G1PUA, OLED77G2PUA, OLED77Z2PUA, OLED77ZXPUA, OLED83C1PUA, OLED83C2PUA, OLED83G2PUA, OLED88Z2PUA, OLED88ZXPUA, OLED97G2PUA, 86QNED80UQA, 86QNED85UQA, 86QNED90UPA, 86QNED99UPA, 65QNED80UQA, 65QNED85UQA, 65QNED90UPA, 65QNED99UPA, 75QNED80UQA, 75QNED85UQA, 75QNED90UPA, 75QNED99UPA, 55QNED80UQA, 55QNED85UQA, 55NANO75UQA, 65NANO75UQA, 70NANO75UQA, 75NANO75UQA, 86NANO75UQA