Skip to main contentSkip to footer
Slide 1 of 10

Overview

The Costway 18,000 BTU Mini Split Air Conditioner delivers efficient comfort management for multiple rooms, letting you control settings from anywhere with Wi-Fi and Alexa compatibility. Its low noise operation and energy-saving inverter technology help maintain ideal temperatures while minimizing noise and power use.
  • 18,000 BTU cools up to 1,250 sq. ft.—ideal for large open spaces
  • Operates at under 30dB for quiet comfort, like a quiet room
    • This description was generated by AI and reviewed for accuracy.

    Costway 3-in-1 Mini-Split Air Conditioner - 18000 BTU (1250 sq ft Coverage) - 30dB, Heat, Remote - White

    Model: Thundrive-18k-01
    Web Code: 18481346
    Sold and shipped by | 3.7 seller rating (5,174 reviews)

    Available for deliveryAvailable online only

    Delivery times vary by location. Most Marketplace items leave sellers' locations within 2 business days. Allow additional time for shipping.

    Enjoy on orders from this seller.

    Seller Return Policy

    Read return policy

    Warranty

    Check with the manufacturer for details.

    For Quebec residents: See the Availability Guarantee disclosure in the Specifications section below.

    What's included:

    • 1x Outdoor Unit
    • 2 x 9000 BTU Indoor Unit
    • 2 x Communication Wire
    • 2 x Copper Connection Pipe
    • 2 x Drain Hose
    • 2 x Remote Control
    • 2 x Wall Sleeve
    • 2 x Wall Cover
    • 2 x Screw Kit
    • 4 x Putty
    • 4 x Tape
    • 4 x Rubber Pad
    • 3 x User Guide
    What you need to know
  • Mini split air conditioner with two indoor units for flexible zoned cooling
  • 18,000 BTU covers spaces up to 1,250 sq. ft.—for large open areas
  • Indoor noise level less than 30dB—comparable to a quiet room
  • Dehumidifying capacity up to 56 pints per day for moisture control
  • Indoor unit dimensions: 31.9 x 8 x 11.5 in. (81 x 20 x 29 cm)
    • Cooling & Air Flow
  • 7 operating modes and 8 fan speeds allow personalized comfort throughout your space
  • 4D auto swing distributes air evenly for consistent room temperature
  • Turbo function helps you reach your desired temperature faster
    • Controls & Modes
  • Wi-Fi-enabled and works with Alexa for convenient remote management
  • Remote controls with digital display simplify temperature adjustments
  • 24-hour timer lets you schedule heating or cooling according to your routine
  • Sleep mode and low noise operation promote restful sleep
  • iFEEL feature senses the room temperature for targeted climate control
    • Comfort & Humidity
  • Energy-efficient inverter technology and ECO mode reduce power use
  • Built-in heater and heat pump enable year-round comfort, including winter heating
  • Dehumidifying capability removes up to 56 pints of moisture each day
    • Installation & Portability
  • Includes two indoor units and one outdoor unit for coverage in multiple zones
  • All installation accessories provided, including communication wires, copper pipes, and drain hoses
    • Safety
  • Child lock helps prevent unintended adjustments
  • Auto defrost function in outdoor unit avoids icing and maintains performance
  • High-temperature self-cleaning eases maintenance and promotes system hygiene
    • This description was generated by AI and reviewed for accuracy.

    For Quebec residents – Disclosure under the Consumer Protection Act

    In compliance with Bill 29, Best Buy and third-party sellers on Best Buy Marketplace do not guarantee the availability of replacement parts, repair services, or maintenance information for any products. Coverage provided through any Best Buy Protection programs and applicable manufacturer warranties, if any, remain in place. Please contact the manufacturer directly for information about their availability guarantee.

    Shipping Charges

    Free standard shipping on all orders.

    Processing Time

    Most items ship within 2 business days after an order is placed*. Allow additional time for shipping to your address.
    *Please note: If an item you ordered becomes unavailable, you'll be notified and a full refund will be processed within 2 business days.

    Shipping Area Restrictions

    Shipping is not available in the following areas*:
    • No restrictions in Canada
    *Please note: Shipping area restrictions may vary for large items. If an item can't be shipped to your address, we'll let you know during the checkout process.
    See our return policy to find specific return information for this product and steps on how to return by mail.