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Description
MRCOOL DIY 4th Gen 2-Zone 18,000 BTU 21 SEER (9K + 12K) Ductless Mini Split AC and Heat Pump with Ceiling Cassettes - 230VMRCOOL DIY Multi Zone 4th Gen 18K BTU Dual Zone Ductless Mini Split with Ceiling Cassettes (9K + 12K) The MRCOOL DIY 4th Gen Multi Zone 18K BTU Dual Zone Mini Split System with ceiling cassettes is an innovative solution for heating and cooling two separate zones in your home, office, or commercial space. Featuring a 9K BTU and 12K BTU ceiling cassette air handler, this system offers customized comfort for spaces up to 375 sq. ft. and 500 sq. ft.,
MRCOOL DIY Multi-Zone 4th Gen 18K BTU Dual Zone Ductless Mini Split with Ceiling Cassettes (9K + 12K)
The MRCOOL DIY 4th Gen Multi-Zone 18K BTU Dual Zone Mini Split System with ceiling cassettes is an innovative solution for heating and cooling two separate zones in your home, office, or commercial space. Featuring a 9K BTU and 12K BTU ceiling cassette air handler, this system offers customized comfort for spaces up to 375 sq. ft. and 500 sq. ft., respectively. With its sleek design, smart controls, and easy DIY installation, this energy-efficient system is the perfect choice for any modern HVAC setup.
What's Included
-
MRCOOL DIY 4th Gen 18K BTU Multi-Zone Condenser (DIY-MULTI2-18HP230C):
- High-performance heating and cooling with a 21 SEER efficiency rating.
- Operates efficiently in extreme temperatures, heating as low as -13°F and cooling up to 122°F.
- Durable Gold Fin® condenser coating resists corrosion for long-lasting performance.
-
Two Ceiling Cassette Air Handlers:
- 9K BTU Air Handler (DIYCASSETTE09HP-230C25): Ideal for smaller spaces up to 375 sq. ft..
- 12K BTU Air Handler (DIYCASSETTE12HP-230C25): Perfect for larger areas up to 500 sq. ft..
- Both air handlers feature a low-profile ceiling installation for discreet heating and cooling.
-
Pre-Charged Quick Connect Line Sets:
- Pre-filled with R-410A refrigerant for easy DIY installation.
- Quick Connect fittings ensure a secure connection without the need for special tools or professional expertise.
System Features
1. DIY Installation Made Simple
This system is designed for ease of installation, eliminating the need for HVAC technicians. Pre-charged line sets and straightforward instructions make setup fast and accessible, saving you time and money.
2. Energy Efficiency and Performance
- 21 SEER Efficiency: Lower energy costs without compromising performance.
- Dual-Zone Comfort: Independently control heating and cooling in two zones for personalized comfort.
3. Ceiling Cassette Air Handlers
- Discreet Design: Fits flush with your ceiling for a clean, modern look.
- Elevation Function: Lowers the air filter panel for easy maintenance and cleaning.
- Quiet Operation: Whisper-quiet performance ensures a peaceful environment.
4. Advanced Smart Technology
- Smartphone App Control: Manage your system remotely via the MRCOOL Smart Controller app (iOS and Android compatible).
- Voice Assistant Compatibility: Operate the system hands-free with Amazon Alexa or Google Home.
- Digital Display: Troubleshooting codes and alerts keep you informed about your system's status.
5. Versatile Operating Modes
- Cool, Heat, Dry, Fan Only, Sleep: Tailor the system to your comfort needs.
- Auto Mode: Automatically adjusts to maintain your desired temperature.
- Timer Function: Schedule the system to save energy and reduce utility bills.
Specifications
Condenser
- Cooling Capacity: 18,000 BTU
- Heating Capacity: 19,000 BTU
- Efficiency Ratings: SEER: 21, EER: 12.5, HSPF: 10.6
- Operating Temperatures: Heating: -13°F to 75.2°F | Cooling: 5°F to 122°F
- Warranty: Includes a 7-year compressor warranty and a 5-year parts warranty, with an optional lifetime compressor warranty.
- Dimensions: 35.04"W x 13.46"D x 26.50"H
Ceiling Cassettes
- 9K BTU Air Handler: Covers up to 375 sq. ft..
- 12K BTU Air Handler: Covers up to 500 sq. ft..
- Dimensions (each): 50.31"W x 13.19"D x 8.98"H
- Noise Level: Whisper-quiet operation for noise-sensitive environments.
Why Choose MRCOOL DIY Multi-Zone?
- Cost-Effective Installation: No HVAC technician required—save thousands on professional installation fees.
- Customizable Comfort: Independently control two zones to suit your preferences.
- Smart Connectivity: Enjoy convenience with remote app control, voice assistants, and easy-to-read digital displays.
- Durable and Reliable: Backed by industry-leading warranties for peace of mind.
Perfect Applications
- Homes: Ideal for bedrooms, living rooms, or home offices.
- Offices: Maintain efficient climate control in workspaces.
- Retail Spaces: Create a comfortable environment for customers and employees.
- Renovations: Flexible and efficient for retrofitting older spaces.
Order Now
The MRCOOL DIY Multi-Zone 4th Gen 18K BTU Dual Zone System is the ultimate blend of performance, convenience, and affordability. Perfect for modern homeowners, businesses, and DIY enthusiasts, this system delivers energy-efficient heating and cooling you can trust.
Order today from MRCOOL DIY Direct and start enjoying customized comfort in every room!
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.6 ★★★★★
Based on 13 reviews
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Product Reviews
★★★★★ 5
Beat the Humidity with This Citrus Powerhouse
Scent: Bergamot, Size: 16 Fl Oz (Pack of 1)
In the middle of a brutal, humid Philippine summer, finding a body wash that actually boosts your confidence is a game-changer. Cremo’s Italian Bergamot isn’t just a soap; it’s a full olfactory experience. It opens with a vibrant, tart Italian bergamot that immediately cuts through the heat, followed by the freshness of vetiver, and the neroli blossom adds a sophisticated floral touch.
True to Cremo’s Reserve collection, the scent is beautifully layered. It builds in intensity as you lather, allowing the earthy, fresh vetiver to anchor the citrus. Unlike many drugstore options, this lingers—stepping out of the shower, you can still catch the crisp citrus and the clean, woody dry-down on your skin. It’s the ultimate reset for a hot day.
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Reviewed in the United States on April 11, 2026
★★★★★ 5
Awesome
Scent: Blue Cedar & Cypress, Size: 16 Fl Oz (Pack of 1)
This soap smells fantastic, and leaves you feeling clean! Great find, went back to buy the other scents!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 29, 2026
★★★★★ 4
I Smell Like a Gentleman Who Owns a Fireplace
Scent: Bourbon Oak, Size: 16 Fl Oz (Pack of 1)
The fragrance is warm, woody, and slightly sweet...that low amber note that smells expensive without trying to smell expensive, which, as we all know, is the actual expensive smell. My wife walked past me twenty minutes post-shower and said, unprompted, "You smell really good." I nodded like I had planned this.
The lather is genuinely rich; squeeze a modest amount and it blooms into a thick, creamy foam that covers everything efficiently. The texture is silky rather than watery, which matters more than people admit. Watery body washes feel like rinsing off with slightly scented regret. This one feels intentional. It cleans, and your skin actually feels clean afterward, not just rinsed. And the moisturizing? I wasn't expecting it. No greasy film, no lotion-begging dry patches by midday. Just quietly softer skin that doesn't make a big announcement about it.
Now, my honest gripe: the scent longevity has a ceiling. By mid-afternoon you're back to neutral. That's the gap between four stars and five for me. For daily freshness and an incredible morning window of smelling genuinely great, it absolutely delivers...but it won't carry you to bedtime.
On value: 16 fl oz is decent, the lather is efficient so the bottle lasts, and the price sits in that sweet spot where you feel like someone who makes slightly elevated but still reasonable choices, which is exactly the vibe this entire product is going for.
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Reviewed in the United States on April 21, 2026
★★★★★ 5
Lathers great in a small amount!
Scent: Bergamot, Size: 16 Fl Oz (Pack of 1), Scent: Bergamot, Size: 16 Fl Oz (Pack of 1)
Lathers great for a small amount! A fair price for the amount and rich content. I just bought, used and love it. Definitely will purchase again. I love the sophisticated yet sensible smell doesn't overpower. In my perception it is a unisex scent as I am a woman and bought for myself.
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Reviewed in the United States on May 28, 2026
★★★★★ 5
My favorite body wash
Scent: Bergamot, Size: 16 Fl Oz (Pack of 1), Scent: Bergamot, Size: 16 Fl Oz (Pack of 1)
My go to body wash, you just get so much for the price and it lasts forever! The smell itself is also very relaxing after a long day. It also lathers quite nicely and does it's job well, would definitely recommend
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 13, 2026
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