Skip to content

Call or Text Us: 844-247-7262

FREE SHIPPING | NO TAX (except for CA)


Mon - Fri 9 am to 6 pm PST

    MrCool DIY 24k BTU Ductless Wall Mounted Air Handler - 3rd Generation 240v

    local_fire_department Sale ends in
    $906.19 $1,200.00
    local_offer Save $293.81
    Unit price  per 
      Payment methods
    • American Express
    • Apple Pay
    • Diners Club
    • Discover
    • Elo
    • Facebook Pay
    • Google Pay
    • JCB
    • Klarna
    • Mastercard
    • PayPal
    • Shop Pay
    • Venmo
    • Visa
    visibility 5 visitors are browsing our store
    local_shippingEstimated to arrive Oct 29 - Nov 04

    In stock items: Products typically ship within 2-5 business days from when you place your order. Due to COVID-19 please allow 7 - 10 days for your order to arrive once you have received shipping confirmation.

    Pre-order/Out of stock items: Contact us for estimated shipping timeline. We are experiencing inventory and re-stocking delays due to port congestion. We appreciate your patience and understanding.

    High order volume due to COVID-19 may occasionally slow delivery for some items and you may experience extended wait times contacting our Customer Service team.

    For the fastest service and online support, please email us at for information regarding your order.

    Read the rest of our shipping policy here.

    Inventory quantities change quickly. Although we try our best to maintain 100% accuracy with inventory, there are rare occasions where we experience an inventory error. For accurate availability, please reach out to us by calling or texting 844-247-7262 or email

    You can read the rest of our terms of service agreement here.

    MrCool DIY 24k BTU Ductless Wall Mounted Air Handler - 3rd Generation 240v

    The 24k BTU MrCool DIY 3rd Gen Ductless Air Handler is a perfect match for a 24k BTU MrCool DIY Condenser. When it is properly paired with the aforementioned, this air handler has a 24,000 BTU capacity and can cool, heat, or dry up to 1,000 square feet. It is a great option for large space air comfort needs.

    Concerned about unnecessary noise from your HVAC? No need to worry with the 24k BTU MrCool DIY 3rd Gen Ductless Air Handler. This air handler operates quietly all the time. You even have the option to mute alerts to keep your home at maximum serenity. Plus, this air handler is powerful enough to make sure your space is comfortable no matter the season.

    Want to set the 24k BTU MrCool DIY 3rd Gen Ductless Air Handler and forget it? Turn your air handler to the AUTO mode, and it will automatically select cooling, heating, or fan-only operation based on the set temperature and the temperature of your room. With this option there is no need to constantly monitor and revisit your thermostat to keep your home comfortable. Would you like to save money while you sleep? In SLEEP mode, the temperature will increase 2°F per hour when cooling and decrease 2°F per hour when heating during the first two hours of operation. You unit will then run at that new more moderate temperature for six hours, after which it returns to its normal operation. This allows you to fall asleep comfortably knowing your saving money and energy.

    Want to save money during the day and only run your unit during the hottest or coolest part of the day? Use the TIMER feature on the 24k BTU MrCool DIY 3rd Gen Ductless Air Handler, to limit your energy usage and save money on your electricity bill by only running your heat or air for a set period of time. Concerned about the humidity in your home, wine cellar, or server room? You can use the DRY mode to regulate temperature and dehumidify simultaneously. You can also benefit from the Anti-Mildew Function that continues to run a low fan for 10 minutes after your heat and air shuts off to prevent mildew from accumulating within your machine.

    The 3rd Generation MrCool DIY Air Handler makes maintenance easy and keeps you worry free. The indoor mini split wall unit can alert you when it is leaking refrigerant, needs a filter cleaning, or needs a replacement filter. And with this smart system, you don't have to reset the horizontal louver to ensure your home is evenly cooled or heated. This air handler remembers where you set the louver and automatically returns to that position once it is turned back on.

    The MrCool DIY 3rd Generation Air Handler will also auto restart in the unfortunate event of a power outage, allowing you to quickly get your home to a comfortable temperature as soon as power returns. In short, this 24k BTU MrCool DIY 3rd Gen Ductless Air Handler can fit seamlessly into your smart home. It can be used with Google Assistant or Amazon Alexa. You can also monitor and manage the temperature of your home wirelessly with the included remote or from an app on your Apple or Android device.


    Unit Specifications

    Model DIY-24k-HP-WMAH-230B
    UPC 810512033485
    Air Flow Direction Horizontal
    Configuration Wall Mounted
    Blower Motor Variable Speed
    Cooling Capacity Less than 1 Ton
    Electrical Phase 1-Phase
    Line Set Connection Type Quick Connect
    Liquid Line Size 3/8 inch
    Max Overcurrent Protection 25 amps
    Product Height (in) 13.19
    Product Length (in) 8.9
    Product Width (in) 42.52
    Series DIY
    Special Features Wifi Capable
    Suction Line Size 5/8 inch
    System Application Type Ductless Split Systems
    Voltage 240
    Warranty 5 Year Parts, 7 Year Compressor
    Weight (lbs) 54.6700
    Region Compatibility Nationwide
    California Residents see Prop 65 WARNING


    What's Included

    MrCool DIY-24-HP-WMAH-230B

    Owner Manual



    DIYB Customer Brochure

    DIYB Installation Manual

    DIYB Quick Start Manual

    DIYB Warranty

    $906.19 $1,200.00

    Customer Reviews

    No reviews yet

    Free Shipping

    We offer free shipping on orders over $55 across the contiguous United States. No tax except CA.*

    Price Match

    Find a better price? We'll match it. See our Price Match Policy.

    Secure Checkout

    We use encrypted SSL security to ensure that your credit card information is 100% protected.

    Extra 3% off! arrow_drop_up