LG 18,000 BTU Thru-the-Window Air Conditoner - Energy Star

Model #LW1816ER

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MSRP: $795.00 ?


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Tech Specs

Fuel Type Electric
Certifications Energy Star
Voltage 230
Amps 7.5 Amps
Cooling Amps 7.5
Cooling Watts 1510
Cooling Capacity 18000
Temperature Options Cooling Only

Heating & Cooling

SEER (Seasonal Energy Efficiency Rating) 11.9
Plug Type 6-15P
LP Conversion No
Filter Type Washable
Installation Type Window
Assembly Required Yes
Items Included Remote Control
Chassis Type Slide Out
EER (Energy Efficiency Rating) 11.9
CEER (Combined Energy Efficiency Rating) 11.8


Appliance Color White
Type Thru-the-Window
Weight 130


Width 26"
Depth 28.13"
Height 17.69"
User Reviews
17 August 2021

After an extensive heat wave, we purchased this air conditioner based upon its ease of installation, simple controls and the BTU's necessary to cool our house. Are we ever glad we chose this unit, because within 3 minutes of turning it on, our house was essentially cooled down to the right...

  • +

    Style/Design, ease of use, Features/Settings, Performance, Quality

Abt electronics.32817785
17 August 2018

Hollywood Florida I bought this for a 900 sq ft one bedroom apartment the power of the blower is enough to wiggle the bedroom door towards the living room compressor kicks on and off correctly even at 76 remind you it's South Florida in the month of August 93 in the day and night time 86 outside LG...

29 June 2021

Bought this air conditioner a couple of months ago and we are very pleased with the performance. It cools our house very quickly (amazing). Installation is not easy because it weighs so much. Wish that they offered a kit to install on vertical sliding windows.

  • +

    ease of use, Features/Settings, Performance

Abt electronics.32817785
22 August 2020

Works nicely and cools well. Not a complicated machine

27 June 2022

AC model LW1816ER often doesn't blow any air at -- not even warm air. I've unplugged it for 10 minutes, cleaned filters, tried everything. Was working on and off and now doesn't work much at all. I have two of the exact same units.

Abt electronics.32817785
16 August 2017

Maybe a little noisier than I expected. It is installed solidly. I can live with it. Cools nicely.

7 November 2021

I’ve Purchased this window until a month or so ago and I love it. I put it in my cook shed and it cools the place down in no time. Very quite and energy efficient. I will purchase this product again. Very very satisfied

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Abt electronics.32817785
30 June 2017

This unit cools the entire fist floor of our house. It cools quickly and is quiet. Highly recommended!

14 August 2019

So far this air conditioner has functioned very well and I consider it to be slightly better than the previous unit which was also a LG product.The new unit has slightly higher noise and vibration levels, but it is also slightly larger and hopefully it will have the same long reliable life span of...

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Abt electronics.32817785
20 August 2016

This unit is through the wall. It replaced the exact same model from 6yrs. ago. It works hard and continually. My husband likes it COLD!

Product Description

The LG 18,000 BTU 230V window-mounted air conditioner is perfect for cooling a room up to 1,000 square feet. You will cool a lot and save even more with this unit's energy saver function, 24-hour on/off timer and a 11.9 energy efficiency ratio. With its stylish full-function remote, you can even get your cool on from across the room. Plus, LG patented gold fin anti-corrosion coating provides a protective shield so the unit lasts longer. Please note: this unit requires a special 230V electrical Outlet and will not operate with a standard 115V household electrical Outlet.


  • Remote included
  • 4-way Air Direction
  • 3 Cooling & Fan Speeds with Auto Cool
  • Timer
  • Slide-out washable filter
Product Highlights
  • Width: 26"
  • Height: 17.69"
  • Depth: 28.13"
  • dBa: 68
  • CFM: 530
  • Fuel Type: Electric
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