$645.00
In Stock
| Brand | LG |
| Model # | LW1821ERSM |
| Width | 25.98 in. |
| Height | 17.68 in. |
| Depth | 28.11 in. |
Who it’s for
Sized for a specific room — Rated to cool a room up to 1,000 sq ft, as stated on the model.
Good for phone control — Wi-Fi connectivity is listed on this air conditioner, for control and alerts from a phone app.
All Make Advantage
Bundle qualifying appliances to unlock All Make Advantage (save $90–$1,000)
18,000 Btu Smart Wi-fi Enabled Window Air Conditioner | Cools Up To 1,000 Sq. Ft.
Model: LW1821ERSM
Installation & Removal
Installed by our own team · connection to existing lines only, no modifications
Delivery & installation details →Questions or ready to buy? Talk to a real appliance expert.
- Matches the lowest advertised price· verified Oct 27
- Family-owned since 2009
- Jackson, NJ showroom
- Lowest Price Guarantee
At a glance
LG LW1821ERSM is a window ac unit in White, 25.98 inches wide. It has Wi-Fi connectivity. It suits a specific room and phone control.
Specifications
Dimensions
Warranty
Components
Dimensions/weight
Power & Ratings
Features
Performance
Summary
Upc Codes
Air Conditioner Thinq® Smart Features
Product Features
Maximum Cooling
LG Window Air Conditioners provide exceptional cooling power that will keep you and your family cool, comfortable, and in control.
Made to Perfection
LG Window Air Conditioners add powerful performance and stable durability to perfectly match your window frame.
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.
3-in-1 Operation
Use cool mode for powerful cooling and dehumidifying on hot days. In fan mode, the fan circulates the air in the room. Dry mode is ideal for damp, rainy days.
Quiet Operation
LG Window Air Conditioners operate at quiet sound (when in low mode) eliminating unnecessary noise for smooth operation that you'll barely notice.
Control Your Cool From Anywhere
Control key air conditioner features from your phone or favorite smart speaker with the ThinQ® app.
Installation Made Easy
This unit comes with our simple and convenient installation kit, so you can set up your air conditioner with ease.
Product Documents
Customer Reviews
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Common questions
- Is the LG LW1821ERSM in stock?
- Yes — the LG 18,000 Btu Smart Wi-fi Enabled Window Air Conditioner | Cools Up To 1,000 Sq. Ft. is in stock at All Make Appliance and available to order now.
- Is the LG LW1821ERSM sized for a specific room?
- Yes — Rated to cool a room up to 1,000 sq ft, as stated on the model.
- Is the LG LW1821ERSM good for phone control?
- Yes — Wi-Fi connectivity is listed on this air conditioner, for control and alerts from a phone app.
- Does the LG LW1821ERSM qualify for free shipping?
- Yes in the NJ/NY metro area on orders over $499. Regional delivery is free over $899, and nationwide delivery is free over $1,999.
- What warranty comes with the LG LW1821ERSM?
- The LG 18,000 Btu Smart Wi-fi Enabled Window Air Conditioner | Cools Up To 1,000 Sq. Ft. is listed with 1 year of parts and labor coverage from the manufacturer, per this model's published specifications.
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