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MRCOOL DIY 5th Gen 18,000 BTU 2-Zone Ductless Mini Split Air Conditioner & Heat Pump | 9k+12k Wall Mounted | Covers 2 Rooms, 875 Sq Ft

SKU: DIYM218HPW04D06N/AAvailability : In StockIn StockOut of stock

Please select the appropriate line set lengths to complete your bundle.

Note: Line sets connect the indoor and outdoor units together, where the outdoor unit (condenser) supplies the indoor unit (air handler) with refrigerant.
Will not ship until [19041994]
Price:

$3,313.00

BEST PRICE COMMITMENT
$3,313.00
Out of stock
  • Authorized Dealer
  • Free Shipping
  • 30-Day Return policy

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What Size MRCOOL Mini Split Do I Need?

MRCOOL DIY 18K BTU 2-Zone Mini Split System | Heat & Cool Two Rooms (875 Sq. Ft.)

Take control of your home’s comfort with the MRCOOL DIY 5th Gen 2-Zone System. This complete DIY package lets you independently heat and cool two different-sized rooms—375 sq. ft. and 500 sq. ft.—from one powerful 18,000 BTU outdoor unit. Designed for true do-it-yourself installation, it requires no special HVAC tools or professional help. Everything you need is included for a weekend installation that delivers professional-grade comfort and energy savings.


Key Benefits:

✅ Two-Zone Flexibility – Independently control temperatures in two rooms: one 375 sq. ft. space and one 500 sq. ft. space (875 sq. ft. total).

✅ Easy DIY Installation – No HVAC license or refrigerant handling needed. Includes pre-charged QuickConnect® linesets for simple, vacuum-free hookups.

✅ High Energy Efficiency – Rated at 23.9 SEER2 for cooling and 10.0 HSPF2 for heating, reducing your energy bills year-round.

✅ All-Season Performance – Provides reliable heat even in extreme cold, operating down to -13°F.

✅ Complete System in One Box – Includes 18K BTU outdoor condenser, two indoor wall-mounted air handlers (sized for each room), linesets, cables, and remotes.

✅ Strong Warranty – Backed by a 7-year compressor warranty and 5-year parts warranty.


What’s Included:

  • 1 Outdoor Condenser Unit (18,000 BTU Multi-Zone)

  • 2 Wall-Mounted Indoor Air Handlers (sized for 350 sq. ft. and 500 sq. ft.)

  • 2 Pre-Charged QuickConnect® Linesets

  • 2 DIYPRO® Cables

  • 2 Wireless Remotes


Technical Specifications:

  • System Type: 2-Zone Ductless Heat Pump

  • Total Capacity: 18,000 BTU (supports up to two zones)

  • Coverage: 375 sq. ft. + 500 sq. ft. (875 sq. ft. total)

  • Cooling Efficiency: 23.9 SEER2

  • Heating Efficiency: 10.0 HSPF2

  • Low-Temp Heating: Effective down to -13°F

  • Refrigerant: R-454B (included in pre-charged linesets)

  • Electrical: 230V

  • Warranty: 7-year compressor, 5-year parts


Important Note:

If both air handlers run at the same time, their combined BTU output is limited by the condenser’s total 18,000 BTU capacity. The system automatically balances power between zones to optimize comfort and efficiency.


Why Choose This System?

Perfect for homeowners who want to heat and cool two different-sized rooms independently—like a living room and a master bedroom—without installing separate systems or paying for professional installation. Enjoy energy savings, all-season reliability, and total DIY control.


Perfect For:

  • Living room (500 sq. ft.) + master bedroom (375 sq. ft.)

  • Great room + home office

  • Large bedroom + family room

  • Garage + workshop or lounge area


Ready to install your own two-zone comfort system?
Order the MRCOOL DIY 18K BTU 2-Zone Mini Split today and enjoy customized heating and cooling in two rooms—installed by you, for you.

SYSTEM OVERVIEW

System TypeDuctless Mini Split Air Conditioner & Heat Pump
Zones2
CapacityTotal: 21,000 BTU
Zone 1: 9,000 BTU
Zone 2: 12,000 BTU
Coverage AreaTotal: 875 sq. ft.
Zone 1: 375 sq. ft.
Zone 2: 500 sq. ft.
RefrigerantR-454B
Line Sets Included2 Sets
Warranty7 Years Compressor
5 Years Parts

OUTDOOR UNIT (18K) x 1

ModelDIY-MULTI3-18HP230D-O
Dimensions35.04" W x 13.46" D x 26.50" H
Cooling Capacity18,000 BTU
SEER223.9
EER213.0
Heating Capacity18,000 BTU
HSPF2-410.0
HSPF2-57.8
Outdoor Noise Level60.0 dB(A)
Outdoor Operating TemperatureCooling: -13°F – 122°F
Heating: -13°F – 75°F
Voltage208–230V
Phase1
Cycle60Hz
Min Circuit Ampacity16.0A
Max Fuse Breaker20.0A
Weight101.63 lbs
CertificationsENERGY STAR Certified
AHRI Certified
UL Listed
ETL Listed

INDOOR UNIT (9K) x 1

ModelDIY-09-HP-WMAH-230D25-O
Dimensions31.57" W x 7.44" D x 11.69" H
Mounting TypeWall
Cooling Capacity9,000 BTU
Heating Capacity9,000 BTU
Coverage AreaUp to 375 sq. ft.
Liquid Line Size1/4"
Suction Line Size3/8"
ModesAuto Mode: Automatically selects heating or cooling based on the room's temperature.
Cool Mode: Lowers the room temperature to your desired setting.
Heat Mode: Raises the room temperature to your desired setting.
Fan-Only Mode: Circulates air without heating or cooling.
Dry Mode (Dehumidification): Reduces humidity levels in the room.
Sleep Mode: Gradually adjusts temperature settings for comfortable sleep and energy savings.
Weight24.47 lbs

INDOOR UNIT (12K) x 1

ModelDIY-12-HP-WMAH-230D25-O
Dimensions31.57" W x 7.44" D x 11.69" H
Mounting TypeWall
Cooling Capacity12,000 BTU
Heating Capacity12,000 BTU
Coverage AreaUp to 500 sq. ft.
Liquid Line Size1/4"
Suction Line Size3/8"
ModesAuto Mode: Automatically selects heating or cooling based on the room's temperature.
Cool Mode: Lowers the room temperature to your desired setting.
Heat Mode: Raises the room temperature to your desired setting.
Fan-Only Mode: Circulates air without heating or cooling.
Dry Mode (Dehumidification): Reduces humidity levels in the room.
Sleep Mode: Gradually adjusts temperature settings for comfortable sleep and energy savings.
Weight24.47 lbs

FAST & EASY SHIPPING

Order Confirmation: The customer must provide a valid e-mail address during the checkout process. All orders are subject to verification and approval. All approved orders will be accompanied by an e-mail confirmation from our secure payment server. All shipped orders will be followed by an e-mail confirmation including tracking number(s) and shipping carrier contact information.

Payment Methods: All major credit and debit cards, including VISA, MasterCard, Discover, American Express, Google Checkout, PayPal, Personal and business checks are drawn on U.S. funds, U.S. Postal Money Orders in U.S. dollars. We do not accept COD orders.

Credit Card Orders: The shipping address must be on file and confirmed by the credit card issuer, except for American Express orders, which must be shipped to the billing address only.

HOW WE SHIP

We understand the importance of making sure your order arrives fast & safely. We work with our brand partners to ensure that all orders are shipped in a timely and efficient manner. To ensure we are meeting the highest standards, we work with these partners to ship directly from their warehouses located all over the US. This allows us the most flexibility to deliver your items, so you can start building your dream home faster.

Features:

- Free Shipping on all orders delivered by FedEx Ground, FedEx Freight, or other comparable couriers.

- Large appliances ship via curbside shipping (Such as ranges, dishwashers, and refrigerators). This means the carrier will drop it off on your property but will not deliver inside your home, porch, garage, kitchen, etc.

- Smaller products and small appliances are shipped via FedEx Ground or similar courier. They will be dropped off at your home and no signature is required.

- All delivery dates listed on the website are estimates. Delivery dates are not guaranteed and subject to change based on courier shipping times, delivery appointment availability and warehouse processing times.

- Shipping includes one delivery attempt. If the delivery is not accepted and the customer requests a second, or further delivery attempts, the customer will pay a delivery fee that is set by the courier.

- Full insurance is included in all shipments.

- Change Shipping Address: Once an order is staged for shipping, or shipped, the address cannot be changed. In some cases we are able to change the shipping address, a fee will apply to cover the fee that is charged to Dream Kitchen & Home. This fee is determined by the courier, and out of our control. The average fee can range from $150-500+ depending on the courier.

Appliance Shipments via Freight Shipments / LTL 

  • Large appliances are shipped via Freight / LTL (Less-than-truckload).
    • Large appliances includes, but not limited to, ranges, refrigerators, dishwashers, grills, etc. 
  • The carrier will call to schedule a delivery appointment.  A person, 18-years or older, must be available at the time of delivery to sign and accept the shipment.
  • Additional charges may apply for reschedule deliveries, or if the shipment is refused without a valid reason. These rates are determined by the courier company and are out of our control.
  • Delivery Window: The courier will offer options to deliver your freight shipment.
    • If you are unable to accept delivery, the courier will return to sender, or begin charging a storage fee
    • If returned to sender, it will be treated as a return and a restocking fee will apply, as per our return policy.
    • If the customer requests a delivery date past the offered window, the courier will charge storage fees. Storage fees are to be paid by the customer. The average fee can range from $25-100/day depending on the courier and location. 
  • Any additional charges by the courier will be paid by the customer. These can occur when customers request to delay deliver, or asking for extra services from the courier. These are charged by the courier and out of our control. 
  • Refused Shipments: Shipments that are refused will be sent back to the warehouse and automatically treated as a return. A restocking fee will apply, as per our return policy found here.

Ground Shipments (Smaller Appliances and Smaller Items)

  • Smaller appliances and products will be shipped via FedEx ground or similar courier. 
  • Smaller appliances include, but not limited to, Microwaves, Range Hoods, etc. 
  • A signature will not be required and the courier will leave it on your property, typically at or near your front door

Tracking Numbers 

  • Tracking number(s) are provided via email within 1-2 business days* after the date of the order is placed, or after the warehouse processing date.
  • Items shipped via FedEx Ground, or similar courier, may take up to 2-4 business days after processing date.
  • Items shipped via FedEx Freight, or similar freight carriers, may take 3-5 business days after processing date

Shipping Areas:

  • Free shipping applies to the 48 continental/contiguous United States.
  • We do not ship to PO Boxes.
  • We do not ship to Alaska, Hawaii, Puerto Rico, Guam, Northern Marina Islands, United States Virgin Islands, any outlining mainland USA islands.

Damaged Packages

  • If your item arrived damaged - we are happy to arrange for a prompt replacement. Please email us with your order number and photos of the damage at cs@dreamkitchenandhome.com within 48 hours of receiving your order. After 48 Hours damage replacements may be denied. 
    • We will send you a return label for the damaged item, once it is picked up we will send the replacement to you.
  • Damaged appliances can only be exchanged or repaired if they are not installed. Once an appliance is installed, we cannot replace or repair due to damages
  • Prior to shipping, all products are individually inspected to verify that they leave our facility in brand-new condition. We re-package all of our products well so they arrive on your doorstep undamaged.
  • When you sign for the delivery, even if the package appears only slightly damaged, please write "Package Damaged." If the package looks significantly damaged, you may refuse delivery.  In this case, please notify us so that we can expect the return shipment. Once the package returns to us we will send you a new one right away.

  • If you have already accepted the package and notice missing or damaged parts, please contact us right away and we will ship you replacement parts free of charge.  We only have a 48-hour window to file a freight claim.

  • If you are missing any parts, we will ship them to you at our expense.

SHIPPING LEAD TIMES BY BRAND

ZLINE Kitchen and Bath: 

3-7 Business Days (Ships Next Business Day) with Curbside Delivery

*All items are subject to a shipping fee.

We only ship to the contiguous 48 United States. We will work with private parties/shipping proxies for shipments outside our normal shipping range (including Alaska, Hawaii, Canada, etc) if pre-arranged by the customer. We will NOT honor returns for shipments outside of our normal shipping range.

*Orders shipped to zip codes 100## – 119## (New York), 200## – 205## (Washington DC) & 025## – 026## (Massachusetts) are subject to a freight shipping fee of $196 due to handling fees in those zips for large packages. 

Items that ship ground through FedEx will take 1-5 business days depending on your location from the shipping warehouse.

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