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Overview

The COSTWAY 36k BTU 4 Zone Mini Split Air Conditioner delivers efficient cooling and heating for up to four separate spaces, giving you flexible comfort and control. Easily adjust settings with Wi-Fi connectivity from your smartphone. Customizable modes and fan speeds help fit your daily routine.
  • 36,000 BTU cools or heats up to 1,800 sq. ft. – perfect for great rooms or large open main areas
  • Indoor unit operates at just 30–35dB – peaceful like a quiet room or refrigerator hum
    • This description was generated by AI and reviewed for accuracy.

    Costway 3-in-1 Mini-Split Air Conditioner - 36000 BTU (1800 sq ft Coverage) - Heat, Remote - White

    Model: BSTC02759
    Web Code: 19599852
    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:

    • 1 x Outdoor Unit
    • 3 x 9K BTU Indoor Unit
    • 1 x 18K BTU Indoor Unit
    • 4 x Communication Wire
    • 4 x Copper Connection Pipe (Air + Liquid)
    • 4 x Drain Hose
    • 4 x Remote Control
    • 4 x Mounting Plate
    • 4 x Wall Sleeve
    • 8 x Wall Cap
    • 4 x Screw Kit
    • 8 x Putty
    • 8 x Tape
    • 5 x User Guide
    What you need to know
  • Type: Mini split air conditioner with multi-zone capability
  • Cooling capacity: 36,000 BTU covers up to 1,800 sq. ft. (great room/large open main area)
  • Indoor unit noise: 30dB (quiet room) for 9k BTU, 35dB (refrigerator hum) for 18k BTU
  • Electrical requirements: 208-230V~60Hz/1PH
  • Indoor unit dimensions: 9k BTU at 31 x 11.5 x 7.8in. (79 x 29 x 20cm); 18k BTU at 38.8 x 12.4 x 8.9in. (98 x 31 x 23cm)
    • Cooling & Air Flow
  • Cool and heat multiple zones individually and efficiently
  • Advanced inverter technology enhances energy efficiency
  • Cools even at 125F, heats even at -13F
    • Comfort & Humidity
  • Dehumidifying capacity: 35.5pints/day for 9k BTU, 81pints/day for 18k BTU
  • 6 modes and 5 fan speeds to customize your comfort
    • Controls & Modes
  • Wi-Fi enabled for smartphone control
  • 24-hour timer provides programmable convenience
  • Remote controls with digital display for easy operation
    • Filters & Air Quality
  • Removable and washable filter for hassle-free maintenance
    • Safety
  • Chassis heating function prevents freezing on cold days
    • Installation & Portability
  • Includes mounting plates, wall sleeves, communication wires, copper connection pipes (air + liquid), drain hoses, wall caps, screw kits, putty, and tape for setup
    • Other Features
  • Uses R32 refrigerant with lower environmental impact
    • 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.