SKU: 57643976400

MRCOOL DIY Mini Split - 21,000 BTU 2 Zone Ductless Air Conditioner and Heat Pump, DIY-B-218HP0912

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Description

MRCOOL DIY Mini Split - 21,000 BTU 2 Zone Ductless Air Conditioner and Heat Pump, DIY-B-218HP0912MRCOOL DIY Mini Split 21,000 BTU 2 Zone Ductless Air Conditioner and Heat Pump (DIY B 218HP0912) The MRCOOL DIY 4th Gen 21,000 BTU 2 Zone Mini Split System provides an energy efficient and user friendly solution for heating and cooling two independent spaces. Featuring a powerful 18K BTU condenser, a 9K BTU wall mounted air handler, and a 12K BTU wall mounted air handler, this system is designed for easy installation and smart operation. With its

MRCOOL DIY Mini Split - 21,000 BTU 2-Zone Ductless Air Conditioner and Heat Pump (DIY-B-218HP0912)

The MRCOOL DIY 4th Gen 21,000 BTU 2-Zone Mini Split System provides an energy-efficient and user-friendly solution for heating and cooling two independent spaces. Featuring a powerful 18K BTU condenser, a 9K BTU wall-mounted air handler, and a 12K BTU wall-mounted air handler, this system is designed for easy installation and smart operation. With its advanced features and quiet performance, this ductless HVAC system ensures year-round comfort for your home or office.


What’s Included

  1. MRCOOL DIY 18K BTU Multi-Zone Condenser:

    • Delivers an impressive 21 SEER efficiency rating, ensuring energy savings.
    • Operates in extreme temperatures, heating as low as -13°F and cooling up to 122°F.
    • Comes with a limited lifetime compressor warranty through the MRCOOL Care Program for unmatched reliability.
  2. Wall-Mounted Air Handlers:

    • 9K BTU Air Handler:
      • Covers up to 375 sq. ft., ideal for smaller rooms like bedrooms or offices.
    • 12K BTU Air Handler:
      • Covers up to 500 sq. ft., perfect for larger living rooms or open areas.
    • Both units feature compact, wall-mounted designs for seamless integration into any space.
  3. Two Remote Controllers:

    • Allows independent control of temperature, mode, and fan speed for each zone.
  4. Optional Line Sets:

    • Pre-charged line sets are available in standard or longer lengths for flexible installation (additional cost applies).

Key Features

1. Energy Efficiency

  • 21 SEER Efficiency Rating: Maximizes energy savings without compromising on performance.
  • Eco-Friendly Refrigerant: Utilizes R-410A, an environmentally friendly and efficient refrigerant.

2. DIY-Friendly Installation

  • Pre-Charged Line Sets: Enables quick and straightforward installation without the need for professional tools or technicians.
  • Step-by-Step Support: Includes detailed guides and video tutorials to make setup easy for DIY enthusiasts.

3. Advanced Air Handler Features

  • Multiple Operating Modes: Includes Cool, Heat, Auto, Dry (dehumidify), Fan-Only, Quiet, and Sleep modes for personalized comfort.
  • Smart Connectivity: Compatible with the Smart HVAC app, allowing remote control via Apple or Android devices.
  • Quiet Operation: Operates with minimal noise, making it ideal for bedrooms and offices.

4. Reliable Year-Round Comfort

  • Extreme Temperature Operation: Provides efficient heating even in sub-zero temperatures as low as -13°F, and cooling in high temperatures up to 122°F.
  • Intelligent Load Management: Ensures the combined BTU output of both air handlers does not exceed the condenser's 18K BTU capacity when running simultaneously.

Specifications

Condenser

  • Cooling Capacity: 18,000 BTU
  • Heating Capacity: 19,000 BTU
  • Efficiency Ratings: SEER: 21, EER: 12.5
  • Operating Temperatures: Heating: -13°F to 75.2°F | Cooling: 5°F to 122°F
  • Voltage Requirements: 208V-230V/60HZ/18-25A
  • Dimensions: 35.04"W x 13.46"D x 26.50"H
  • Warranty: 7-year condenser replacement, 5-year parts

Wall-Mounted Air Handlers

  • 9K BTU Air Handler:
    • Coverage Area: Up to 375 sq. ft.
    • Cooling/Heating Capacity: 9,000 BTU
    • Dimensions: 31.57"W x 7.44"D x 11.69"H
    • Modes: Auto, Cool, Heat, Dry, Fan-Only, Quiet, Sleep
    • Warranty: 5-year parts
  • 12K BTU Air Handler:
    • Coverage Area: Up to 500 sq. ft.
    • Cooling/Heating Capacity: 12,000 BTU
    • Dimensions: 31.57"W x 7.44"D x 11.69"H
    • Modes: Auto, Cool, Heat, Dry, Fan-Only, Quiet, Sleep
    • Warranty: 5-year parts

Benefits of the MRCOOL DIY 2-Zone Mini Split System

  1. Customizable Comfort:

    • Independently control two separate zones with individual air handlers and remote controls.
    • Ideal for small to medium-sized rooms such as bedrooms, home offices, and living spaces.
  2. Smart Control:

    • Operate the system remotely using the Smart HVAC app on your smartphone.
    • Adjust temperature, mode, and fan speed from anywhere for convenience and control.
  3. Energy Savings:

    • Reduce energy consumption with a 21 SEER rating.
    • Sleep and Timer functions further optimize energy usage during non-peak hours.
  4. Quiet and Reliable:

    • Designed for whisper-quiet operation, ensuring minimal disruption in any environment.
    • Built to last, with a robust warranty program and durable components.
  5. DIY Convenience:

    • Save thousands on installation costs with a simple and efficient DIY process.
    • Pre-charged line sets eliminate the need for professional refrigerant handling.

Perfect Applications

  • Homes: Heat and cool two separate rooms, such as bedrooms, offices, or compact living spaces.
  • Offices: Maintain comfortable temperatures in multi-room professional environments.
  • Renovations: A flexible and efficient option for retrofitting older buildings or integrating HVAC into new construction.

Order Now

The MRCOOL DIY 4th Gen 21,000 BTU 2-Zone Mini Split System offers the perfect balance of energy efficiency, customizable comfort, and easy installation. Whether you’re upgrading your home or outfitting an office, this system provides dependable year-round climate control.

Order today from MRCOOL DIY Direct and enjoy reliable heating and cooling at your fingertips!

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 57643976400

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JREMUSIC
Los Angeles, US
★★★★★ 5
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Size: 10.5, Color: Black/Black
They fit and they stay on my feet (I was worried because these are slip-ons).
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Reviewed in the United States on May 31, 2026
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Will
Lexington, US
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Comfortable lightweight sneakers for casual everyday wear
Size: 9.5, Color: Navy
These sneakers feel like a decent value for the price. They are very lightweight, which makes them comfortable and easy to wear throughout the day, though that also means they feel a bit less substantial than more supportive athletic shoes. I have mainly been using them with business casual office outfits, and they work perfectly well for that kind of light-duty everyday wear. I would not personally use them for anything especially active since they do not offer a ton of support, but for casual use they have been great. I also like how easy they are to slip on and off. I typically wear a size 9.5, and these fit true to size for me.
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Dennis
Lowell, US
★★★★★ 5
Good shoe inexpensive
Size: 11.5, Color: Black/White
Perfect. The fit and slip on ability. And it came in an actual shoe box.
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Reviewed in the United States on May 24, 2026
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Dawna Lee
Birmingham, US
★★★★★ 5
Great shoes
Size: 13, Color: Black/White
Great shoes, bought for my grandson's birthday, he was very pleased with them. I'm very pleased that they came in many sizes.
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David Zielinski
Carnegie, US
★★★★★ 5
Great Value for the Money!
Size: 10.5, Color: Black/White
Pleasantly surprised at this price point! Comfy, sturdy and a way better sole the Sketchers! Amazon products in general have been really good quality at affordable prices!
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Reviewed in the United States on May 3, 2026

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