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4.3 | 18 Reviews

18,000 BTU Window Air Conditioner

LG LW1816ER

Features

  • 18,000 BTU
  • Estimated Cooling Area 1,000 Sq. Ft
  • 3 Cooling and 3 Fan speeds with Auto Cool
  • Easy To Use Electronic Controls

Quick Specs

  • Type: Air Conditioner
  • Style: Window/wall Air Conditioner
  • Width: 26"
  • Height: 17.68"
  • Depth: 28.12"
  • Energy Star Rated: No
  • Cooling Power: 18000 BTUs

See More

 

Features

  • 18,000 BTU
  • Estimated Cooling Area 1,000 Sq. Ft
  • 3 Cooling and 3 Fan speeds with Auto Cool
  • Easy To Use Electronic Controls
  • Automatically restarts after power failure
  • Window Installation Kit Included
COMPRESSOR
Compressor Rotary
DIMENSIONS/WEIGHT
Fits Windows 29"-41" W x 19" H
Net Weight (lbs.) 130 lbs
Product Dimension (WxHxD) 25.98" x 17.68" x 28.11"
Shipping Dimension (WxHxD) 29.13" x 22.44" x 30.51"
Shipping Weight (lbs.) 146 lbs
ELECTRICAL RATINGS
Rated Amps (Cooling) 7.5/6.9
Voltage / 60 Hz 208/230V
Watts (Cooling) 1, 470/1, 510
FEATURES
Air Deflection 4-Way
Air Discharge Type Top Discharge
Air Filter Washable
Auto Restart Yes
Chassis Type Slide In-Out
Energy Saver Function Yes
Fan Speed Cooling 3
Fan Speed Only 3
Filter Alarm Function Yes
Indoor Fan Type Turbo
Outdoor Vent / Exhaust Yes
Remote Control Yes
Thermostat Control Thermistor
Timer 24 Hr, On/Off
Window Installation Kit Yes
MATERIALS/FINISHES
Color White
PERFORMANCE
BTU Performance 18, 000
BTU performance (Cooling) 17,500/18,000
CEER 11.8/11.8
dBA Level (High/Mid/Low/Sleep) 65/63/61
Dehumid. (Pts/Hr) 4.9
Dry Air Flow (CFM) 530
EER 11.9
Est. Cooling Area (Sq. Ft.) 1000
SUMMARY
Type Window Air Conditioner
UPC CODES
UPC 048231379489
WARRANTY
Parts & Labor 1 Year Parts and Labor

Quick Specs


  • Appearance

  • Type: Air Conditioner
  • Style: Window/wall Air Conditioner

  • Dimensions

  • Width: 26"
  • Height: 17.68"
  • Depth: 28.12"

  • Features

  • Energy Star Rated: No

  • Cooling Capacity

  • Cooling Power: 18000 BTUs

Specifications Sheet

Energy Guide

Owner's Manual English 5,717K 10/31/2023

Owner's Manual Spanish 5,658K 10/31/2023

Get Adobe Reader

* Documents require Adobe Reader.

Interactive Tour

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Professional delivery and installation is available for every product we sell. We would be happy to coordinate delivery and installation for you.

Extended warranties are usually very inexpensive and can save you thousands in the future. Some can even cover extra costs that result, such as cost of food that spoils when your fridge dies. It's simple and inexpensive to purchase extended warranties and one of the smartest ways to protect your investment.

Appliances can be large, heavy and expensive. You probably don't have the special tools or expertise needed to fix them in a crisis. If you can spare a few thousand dollars without batting an eyelash for new appliances should they break tomorrow, don't buy a warranty. But if you're like most of us, protect yourself by purchasing inexpensive extended warranties when you buy a new product and save yourself big money in the long run.

4.3 out of 5

83% of reviewers recommend this product.

5 Stars

Great choice on LG air conditioner.

Mike Fox 9/8/2023

I purchased this LG Air conditioner over a month ago and it was a good choice works great.
Originally posted on lg.com

Yes, I recommend this product

Features

 

Quality

 

Value

 
5 Stars

New A/C

Lake loafer 8/28/2023

I installed a/c a month ago in a second floor bedroom. Did not use until temperature was in the high 90s-100s last week. The a/c worked great and cooled the room quickly. The a/c was not too loud and I used the energy saver mode. Our last window a/c lasted 20 years doubt this one lasts that long. Case did come with a dent in it.
Originally posted on lg.com

Yes, I recommend this product

 Incentivized Review

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Value

 
4 Stars

Great size

Sleepy D 8/20/2023

I bought this window a/c month ago and prior to installing I noticed a dent in the unit case. So check it out for dents as soon as u receive the product. Have not used it yet to evaluate how well it cools but with hot temps on. Horizon I think I will know if it is any good. Looks about like the 22 year old a/c it is replacing. Dont think it will last as long as the old one.
Originally posted on lg.com

Yes, I recommend this product

 Incentivized Review

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Quality

 

Value

 
4 Stars

Great product

Haz2 8/18/2023

I have not had this air conditioner long enough to rate it s 5 * I will give it a 4 +.
Originally posted on lg.com

Yes, I recommend this product

Features

 

Quality

 

Value

 
5 Stars

Happy

insphats 8/10/2023

I spent 2 weeks browsing for a/c unit had a 15yr old 20000 btu unit in wall and wanted something with same dimensions and this 1 fit perfectly I did not know about other features had.
Originally posted on lg.com

Yes, I recommend this product

 Incentivized Review

Features

 

Quality

 

Value

 
5 Stars

LG -18000 btu Air Conditioner

Mike Fox 8/9/2023

I replaced my LG Air Conditioner after 20 years with another LG 18000 btu Air Conditioner because it worked really well for that period of time. I chose LG for my replacement because it was very reliable.
Originally posted on lg.com

Yes, I recommend this product

Features

 

Quality

 

Value

 
1 Stars

Defective

Clopez27 7/30/2023

I bought this ac through purchase power. I had it for about a month sitting in the box never opened it didnt have no one to help me install it. Finally did and it didnt work. Its so hot and still dont have no ac. The compressor is bad. Waiting for parts.
Originally posted on lg.com

No, I do not recommend this product

Features

 

Quality

 

Value

 
3 Stars

LG air conditioner

Cc56 7/11/2023

AC unit was delivered and we installed it. We noticed immediately when it was first turned on that it is very loud and vibrates a lot when the compressor comes on.
Originally posted on lg.com

No, I do not recommend this product

 Incentivized Review

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Value

 
5 Stars

GREAT AIR CONDITIONER

DOT18 7/7/2023

WE HAVE HAD THIS UNIT FOR A FEW WEEKS NOW AND IT COOLS THE LARGE AREA WE HAVE IT IN OUR CABIN. REMOTE IS NICE AND BEING ABLE TO SET THE TEMP IS GREAT.
Originally posted on lg.com

Yes, I recommend this product

Features

 

Quality

 

Value

 
5 Stars

This LG Air Conditioner really cools.

Gingercleo53 6/10/2023

I purchased this 18000 BTU LG air Conditioner in April 2023 I love all of the Different features that it has Energy Saver Remote and Different fan speeds. I am keeping cool this Sumner I love it.
Originally posted on lg.com

Yes, I recommend this product

Features

 

Quality

 

Value

 
5 Stars

Great features

JackieBaucon 5/17/2023

The air conditioner I had played out in September of 22 and I needed another one. So I found the exact same brand and almost just like the one that quit and I bought a new one its really good. The one I had lasted for about 15 years it served its purpose..
Originally posted on lg.com

Yes, I recommend this product

Features

 

Quality

 

Value

 
5 Stars

LG 18000 BTU AC

Emilienburgs 9/24/2022

This AC cools a room down fast. We are very pleased with the performance. Our den has 12 ceilings and is 22x20. The den is very cool during the day and cold at night. Easy to change temperature setting manually or with the remote. There is some noise but nothing that bothers our conversations or watching tv. The kitchen is cooler too Our house was built in 1947 so it has been hard to find an AC that works just good but this LG AC is awesome. It can get HOT here in south central Texas and this LG AC works GREAT
Originally posted on lg.com

Yes, I recommend this product

 Incentivized Review

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Quality

 

Value

 
5 Stars

Terrif A/C

RHDoug 9/22/2022

I have a 2014 version of this A/C. There might be some differences but it looks almost the same. It has worked flawlessly for the last 8 years cooling an 800 sq.ft. home even on the hottest days. I have it installed in a through the wall installation its pretty heavy. Might be tough on a window sill. I am a happy customer.
Originally posted on lg.com

Yes, I recommend this product

Features

 

Quality

 

Value

 
5 Stars

Great unit for elderly Grandparents

Jpjoseph 9/7/2022

I purchased two of these units for my elderly Grandparents. The two existing units were the exact same model. Theyre 91 and 94 years old and were used to the controls and remote and change would be difficult. Theyre also very brand loyal and believe in the LG units for durability and trust. They would have no other
Originally posted on lg.com

Yes, I recommend this product

Features

 

Quality

 

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5 Stars

Exceptionally quiet

Bud1229 8/25/2022

Ive had this AC for about a month and use it most evenings. I mounted it through the wall which is a good idea because its quite heavy. I use it to cool about 1800 square feet and it does it with ease. Plus its exceptionally quiet. Great unit.
Originally posted on lg.com

Yes, I recommend this product

Features

 

Quality

 

Value

 
5 Stars

LG for the WIN

Tbaker 8/7/2022

Bought this AC unit cause my other LG I had over 10years gave out on me. So I thought it would be best to go with another LG.
Originally posted on lg.com

Yes, I recommend this product

Features

 

Quality

 

Value

 
1 Stars

Will they ever send a tech.

Maddogzx14 7/28/2022

Ive been sitting in the Az. heat for for a month waiting for LG to send a technician out because my brand new AC unit wont power on.
Originally posted on lg.com

No, I do not recommend this product

 Incentivized Review

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Value

 
5 Stars

18000 LG Air Conditioner

LG Window unit 7/9/2022

I bought this unit about a month ago love it. Would recommend.
Originally posted on lg.com

Yes, I recommend this product

 Incentivized Review

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Quality

 

Value