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LG

LG - 1,000 Sq. Ft. 18,000 BTU 230V Smart Window Air Conditioner - White

Based on 17 reviews
Condition: New
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$649.99

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In stock Fulfilled by Best Buy
Limit 5 per order · Extended holiday returns

Returnable until Jan 15, 2027

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

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At a glance

Condition
New
Recommended Room Size
1000 square'
Model
LW1821ERSM
Dimensions
17.68H × 25.98W × 28.11D in
Weight
130 lb
Color
White
Cord Length
4.4 in
In the box
Window Air ConditionerWindow Installation kitRemote control
Warranty
Parts: 1 year limited · Labor: 1 year limited
Works with
Amazon Alexa

Features 6

  • 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.

Description

Take control of your indoor climate with the LG LW1821ERSM Window Air Conditioner! Experience optimal cooling for large rooms up to 1,000 sq ft with 3 cooling and fan speeds, a 24-hour timer, and 4-way air deflection for complete customization. The unit's revolutionary LG ThinQ technology lets you cool your home remotely via your smartphone, Amazon Alexa, or Hey Google. This ultra-quiet, high-efficiency unit provides top-notch performance while consuming minimum power. Additional features include an automatic restart function after power outages, a remote control, an easy installation kit, a slide-out washable filter, and a check filter alert, ensuring effortless maintenance and a seamless cooling experience. (Please note: Requires a special 230V electrical outlet)

Specs 35

Brand LG
Model Number LW1821ERSM
Color White
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

Frequently asked questions

Delivery and pickup availability for your ZIP code is shown above. You'll choose your shipping speed, delivery time or pickup store at checkout; installation and haul-away add-ons can be picked above or at checkout.

Yes, absolutely! This item's return window has been extended for the holiday season: Returnable until Jan 15, 2027.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
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  • Afterpay Financing
  • Zip Pay in 4
  • Financing through Apple Pay
  • Financing through Google Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Customer Reviews

Based on 17 verified Best Buy reviews.

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