Skip to main contentSkip to footer
Slide 1 of 10

Overview

The Costway 30,000 BTU 4 Zone Mini Split Air Conditioner delivers efficient year-round comfort, letting you cool or heat up to four different rooms independently. Control temperature and settings from anywhere with built-in Wi-Fi and adjust modes and fan speeds to suit your needs.
  • Cool and heat four rooms independently up to 2,100 sq. ft.
  • Quiet operation with indoor noise as low as 30 dB, comparable to a quiet room
    • This description was generated by AI and reviewed for accuracy.

    Costway 3-in-1 Mini-Split Air Conditioner - 30000 BTU (2100 sq ft Coverage) - 30dB, Heat, Remote - White

    Model: BSTC02991
    Web Code: 19645990
    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 12K BTU Indoor Unit
    • 4 x Communications 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
  • Mini split air conditioner for flexible installation
  • 30,000 BTU cooling capacity, covers up to 2,100 sq. ft., ideal for large open-plan spaces
  • Indoor noise level as low as 30 dB, similar to a quiet room
  • 208-230V~60Hz/1PH electrical requirement
  • Indoor unit dimensions: 9,000 BTU units are 31 x 11.5 x 7.8 in. (79 x 29 x 20 cm), 12,000 BTU unit is 34.5 x 11.7 x 7.6 in. (88 x 30 x 19 cm)
    • Cooling & Air Flow
  • Cool and heat up to four zones individually and efficiently
  • Six modes and five fan speeds let you customize your comfort
  • Can cool even at 125℉ and heat even at -13℉ for reliable performance in extreme weather
    • Controls & Modes
  • Wi-Fi-enabled feature allows temperature adjustments from your smartphone
  • Remote control with digital display makes operation easy
  • 24-hour timer gives you programmable convenience
    • Comfort & Humidity
  • Dehumidifying capacity of 35.5 pints/day (9,000 BTU) and 51 pints/day (12,000 BTU) removes excess moisture
  • Chassis heating function prevents freezing on cold days
    • Filters & Air Quality
  • Removable and washable filter for easy maintenance
    • Efficiency
  • Advanced inverter technology enhances energy efficiency
  • 23 SEER2 rating for efficient performance
  • HSPF2: 10
    • Installation & Portability
  • Includes mounting plates, copper connection pipes, and all parts for installation
    • Safety
  • R32 refrigerant has a lower environmental impact
    • Compliance
  • Complies with ENERGY STAR, AHRI and ETL
    • 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.