Overview

  • Total Remote Control
    Utilize LG ThinQ Technology to command your LG LW1821ERSM window air conditioner from anywhere, managing cooling, modes, and temperature adjustments even on the go with seamless compatibility with Amazon Alexa and Hey Google, for unmatched convenience.
  • Whisper-Quiet Operation
    Enjoy peaceful and undisturbed surroundings as the LG LW1821ERSM window air conditioner operates at remarkably low sound levels as quiet as 52dB in low mode, making it perfect for creating serene sleep and work environments.
  • Customized Airflow
    With 3 cooling and fan speeds combined with the Auto Cool feature, fine-tune the airflow of your LW1821ERSM to fit your specific requirements, ensuring personalized comfort at all times.
  • Energy-Saving Schedule
    Craft a tailored cooling schedule to cut down on energy expenses using the 24-hour on/off timer feature, offering proactive energy conservation without compromising on comfort.
  • Roomy Cooling Coverage
    The LG LW1821ERSM is designed to effortlessly cool large rooms up to 1,000 sq ft (25′ x 40′), making it the ideal choice for bedrooms, offices, or any spacious area seeking consistent cooling performance.
  • Voltage Requirement
    This unit requires a special 230V electrical outlet and will not operate with a standard 115V outlet

Will it fit your kitchen?

Width
26 in.
Height
17 5/8 in.
Depth
28 1/8 in.
Min. doorway to bring it in
27 in.
Recommended clearance
Cut-out and clearances are in the manufacturer's installation guide

Measure your opening, doorways and hallways before you buy. Sizes shown are for the model you selected. · Weight 130 pounds

Check your space — enter measurements in inches

Enter your measurements to check.

Compare similar

Specifications

Capacity & configuration

Moisture Removal Capacity
4.9 pints per day
Control Type
Button
Display Type
LED
Air Conditioner Type
Window

Dimensions & weight

Product Name
1,000 Sq. Ft. 18,000 BTU 230V Smart Window Air Conditioner
Minimum Window Opening Height
19 inches
Minimum Window Opening Width
29 inches
Maximum Window Opening Height
19 inches
Maximum Window Opening Width
41 inches
Product Height
17.68 inches
Product Width
25.98 inches
Product Depth
28.11 inches
Product Weight
130 pounds

Features

Brand
LG
Color
White
Cord Length
4.4 inches
Recommended Room Size
1000 square feet
BTU Cooling Rating
18000 british thermal units
Number of Cool Settings
3
Number of Fan Speeds
3
Airflow Rate
530 cubic feet per minute
Maximum Noise Level
65 decibels adjusted
Remote Control
Yes
Integrated Heater
No
Sleep Mode
No
Timer
Yes
Auto Shut-Off
No
Combined Energy Efficiency Ratio (CEER)
11.8
Amperage
15 amperes
ENERGY STAR Certified
No
App Compatible
Yes
Works With
Amazon Alexa
Wireless Connectivity
Wi-Fi
Window Mounting Kit Included
Yes
UPC
048231605052

Power & warranty

Model Number
LW1821ERSM
Voltage Requirement
230
Estimated Annual Electricity Use
11.9 kilowatt hours
Warranty - Parts
1 year limited
Warranty - Labor
1 year limited

Warranty & protection

Included manufacturer warranty

See manufacturer documentation.

Register your product with the manufacturer within 30 days of delivery.

Warranty service

Manufacturer warranty claims are handled by the manufacturer. We are happy to help you find the right contact: (888) 419-6820.

You may also like

Customer reviews

Write a review

No reviews yet. Bought this? Tell other shoppers what you think.

Be the first to review

Your email address will not be published. Required fields are marked *

Questions & answers

Ask a question

Email [email protected] or call (888) 419-6820 during business hours.

Free U.S. shippingOn every order. Leaves our store in 1–2 business days, arrives in 3–5 business days.
Free returns for 30 daysNo restocking fee. We email you a prepaid return label.
We can install it tooOptional in-home delivery, installation and haul-away on large appliances.
Talk to our team(888) 419-6820 · Mon–Sat