SKU: 33304089098

MRCOOL DIY 4th Gen 2-Zone 18,000 BTU 21 SEER (9K + 9K) Ductless Mini Split AC and Heat Pump with Ceiling Cassettes - 230V

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Description

MRCOOL DIY 4th Gen 2-Zone 18,000 BTU 21 SEER (9K + 9K) Ductless Mini Split AC and Heat Pump with Ceiling Cassettes - 230VMRCOOL DIY Multi Zone 4th Gen 18K BTU Dual Zone Mini Split System with Ceiling Cassettes (9K + 9K) Experience ultimate comfort and control with the MRCOOL DIY 4th Gen Multi Zone 18,000 BTU Dual Zone Mini Split System, featuring two sleek 9K BTU ceiling cassette air handlers. Designed for efficiency, quiet operation, and DIY installation, this system is ideal for heating and cooling two separate rooms without the hassle of hiring a professional HVAC

 

MRCOOL DIY Multi-Zone 4th Gen 18K BTU Dual Zone Mini Split System with Ceiling Cassettes (9K + 9K)

Experience ultimate comfort and control with the MRCOOL DIY 4th Gen Multi-Zone 18,000 BTU Dual Zone Mini Split System, featuring two sleek 9K BTU ceiling cassette air handlers. Designed for efficiency, quiet operation, and DIY installation, this system is ideal for heating and cooling two separate rooms without the hassle of hiring a professional HVAC technician.


What’s Included

  1. MRCOOL DIY 4th Gen 18K BTU Multi-Zone Condenser (DIY-MULTI2-18HP230C):

    • Delivers powerful heating and cooling with up to 21 SEER efficiency.
    • Operates in extreme temperatures, with heating as low as -13°F and cooling up to 122°F.
    • Features a durable Gold Fin® condenser to resist corrosion, even in coastal environments.
  2. Two 9K BTU Ceiling Cassette Air Handlers (DIYCASSETTE09HP-230C25):

    • Each unit provides coverage for spaces up to 375 sq. ft..
    • Includes versatile operating modes: Cool, Heat, Dry, Fan Only, Sleep, and Auto.
    • Low-profile design installs discreetly in ceilings for seamless integration.
  3. Pre-Charged Quick Connect Line Sets:

    • Each line set comes pre-charged with R-410A refrigerant for simple DIY installation.
    • Quick Connect technology allows for secure connections using basic tools, saving time and money.

System Highlights

1. DIY Installation Made Easy

This system is designed for anyone to install without professional tools or training. The Quick Connect Line Sets eliminate the need for vacuuming or refrigerant charging, making it accessible for homeowners. Detailed instructions and video guides ensure a smooth setup.

2. Multi-Zone Climate Control

The dual-zone configuration allows for independent heating and cooling in two separate rooms. Each air handler can be controlled individually to suit your preferences, ensuring everyone stays comfortable.

3. Ceiling Cassette Air Handlers

  • Discreet and Space-Saving: Flush-mounted design eliminates the need for wall space and blends seamlessly into ceilings.
  • Easy Maintenance: The innovative Elevation Function lowers the filter panel, allowing for quick and easy filter cleaning.
  • Quiet Operation: With whisper-quiet performance, these units maintain a peaceful environment, ideal for bedrooms, offices, or living rooms.

4. Advanced Technology and Features

  • Smartphone Control: Operate the system remotely using the MRCOOL Smart Controller app, compatible with Apple and Android devices.
  • Voice Control: Integrates with Amazon Alexa and Google Home for hands-free operation.
  • Energy Efficiency: Achieve significant energy savings with a 21 SEER efficiency rating and DC inverter technology.
  • Low Ambient Heating and Cooling: Operates in extreme conditions, from -13°F for heating to 122°F for cooling.

Performance and Specifications

Condenser Specifications

  • Cooling Capacity: 18,000 BTU
  • Heating Capacity: 19,000 BTU
  • Efficiency: SEER: 21, EER: 12.5, HSPF: 10.6
  • Operating Temperatures: Cooling: 5°F to 122°F | Heating: -13°F to 75.2°F
  • Warranty: Includes a 7-year compressor warranty, a 5-year parts warranty, and an optional limited lifetime compressor warranty.
  • Dimensions: 35.04"W x 13.46"D x 26.50"H
  • Weight: 100.53 lbs

Ceiling Cassette Air Handlers

  • Cooling/Heating Capacity: 9,000 BTU each
  • Coverage Area: Up to 375 sq. ft. per unit
  • Modes: Auto, Cool, Heat, Dry, Fan Only, Sleep
  • Dimensions: 50.31"W x 13.19"D x 8.98"H
  • Noise Level: Whisper-quiet operation

Smart Features

  • Digital Display: Check temperatures, troubleshoot codes, and alerts directly on the air handlers’ displays.
  • Customizable Timer Function: Schedule heating or cooling to optimize energy usage.
  • Sleep Mode: Automatically adjusts the temperature for energy efficiency and maximum comfort during the night.
  • Emergency Cooling Mode: Quickly test cooling functionality or perform maintenance tasks with manual override controls.

Eco-Friendly and Energy-Efficient

  • Environmentally Safe Refrigerant: Uses R-410A, a non-ozone-depleting refrigerant.
  • Gold Fin® Technology: Protects against corrosion for long-term durability.
  • Energy-Saving Design: DC inverter technology reduces energy consumption, saving you money on utility bills.

Why Choose MRCOOL DIY Multi-Zone?

  1. Cost-Effective DIY Installation: Avoid the high costs of professional HVAC installation.
  2. Customizable Comfort: Tailor each zone to your preferences with independent controls for every air handler.
  3. Smart Connectivity: Control your system via smartphone, voice commands, or the included remote control.
  4. Reliable Performance: With robust warranties and high-quality materials, MRCOOL delivers year-round comfort and peace of mind.

Perfect Applications

  • Homes: Ideal for bedrooms, living rooms, or home offices.
  • Offices: Create a comfortable work environment in multiple rooms.
  • Retail Spaces: Maintain optimal temperatures for customers and employees.
  • Renovations: A flexible and efficient solution for retrofitting older buildings.

Order Now

The MRCOOL DIY Multi-Zone 4th Gen 18K BTU Dual Zone Mini Split System is the perfect combination of performance, convenience, and affordability. Enjoy energy-efficient heating and cooling, smart technology, and the freedom of DIY installation.

Order now from MRCOOL DIY Direct, the USA’s most trusted MRCOOL dealer, and start enjoying customized comfort today!

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: 33304089098

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4.5 ★★★★★
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K
Verified Purchase
KennyR
Boise, US
★★★★★ 5
Fun, Durable Ball, But Straps Could Be Tougher
Color: Glow in the dark I, Size: Large
I bought the QDAN Glow in the Dark Dog Toys Soccer Ball for my German Shepherd, who absolutely loves it. The glow-in-the-dark feature is great for evening play, adding an extra layer of fun to our outdoor interactions. The ball itself has proven to be remarkably durable, standing up well to the rough play that comes with a large, active dog. However, the straps did not fare as well. My GSD managed to bite through most of them relatively quickly. While this hasn’t stopped us from enjoying the ball, it does mean that some of the interactive potential of the toy is lost. The ball continues to be a hit on its own, thanks to its resilience and the glow feature that keeps my dog engaged. If the straps were as durable as the ball itself, this would be a perfect outdoor toy for energetic dogs. As it stands, it’s still a good purchase for anyone looking for a sturdy, engaging toy for their pet, especially if nighttime play is a routine.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 25, 2024
T
Verified Purchase
Tarheel1979
Pawtucket, US
★★★★★ 5
Great toy
Color: Red
Indestructible by my Boxers
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 21, 2026
T
Verified Purchase
Tangodown
Cuba, US
★★★★★ 5
Broke the first day
I purchased the owl ball because of other dog chew toys I purchased from Amazon. Those other chew toys are still holding together. The main reason I got the owl ball is due to the different noises it makes other than the regular squeak noise. After giving the toy to my dog he loved it right away. He especially liked the noise it made. After a few hours, I noticed he was chewing a white tube-like device. I took this away from him and determined it was the noise maker in the owl ball. I examined the owl ball and noticed the glue used to keep the ball cap shut did not hold. On closer inspection, I noticed what looked like rubber cement was used to hold the cap on but if it was rubber cement it was used improperly. Anyway, I just reglued the cap correctly and now it's just a ball because my dog destroyed the noise maker. OK, Since I posted this review I was contacted by the seller. They offered to give me a full refund for the owl ball. I accepted the offer. So, I will try it again, but buy a different color owl this time. I never expected a refund since it's just a ball now, my dog still plays with it and it is holding up very well. The material it is made from is pretty sturdy.
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Reviewed in the United States on September 4, 2024
C
Verified Purchase
Cassandra Mollura
Port Orchard, US
★★★★★ 3
Squeaker not working!
Color: Yellow
I'll give it 3 stars because I love the design and it's sturdy and great for dogs to hold/launch. That said, the squeaker doesn't really work... I tried everything but it just doesn't make any sound. My dog wasn't really interested but when it did make a slight sound he approached it. Once it stopped he lost interest. But he's very difficult to please😆 so if you have a normal dog, he'll probably like it! I hope the manufacturer fixes the squeaker issue because apparently many people are having the same issue, which is a shame because the product is clearly well made! I'm on the fence about returning it just because the quality it's amazing(squeaker issue aside)!
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Reviewed in the United States on September 19, 2025
B
Verified Purchase
Brady
Lexington, US
★★★★★ 4
Sturdy rubber ball. Noise maker could be improved
Color: Red
I would have given it five stars because of how much, my dog loved it in the beginning. And shut us up holds true as a sturdy rubber ball. My only complaint is at with one of my dogs being a heavy chewer, she was able to bust the noise making part. The ball never broke open or anything. It just no longer makes noise. You can hear the piece rattling on the inside. The ball itself is still solid tho
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 6, 2026

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