MRCOOL DIY 5th Gen 18,000 BTU 23.9 SEER2 Dual-Zone Ductless Mini Split Heat Pump System – 6K + 6K
Experience reliable comfort throughout the year and big installation savings with the MRCOOL DIY 5th Generation Multi-Zone 18,000 BTU 23.9 SEER2 Ductless Heat Pump System. This dual-zone package includes two 6,000 BTU wall air handlers, each ideal for rooms up to ~200 sq. ft., powered by the reliable 18,000 BTU outdoor condenser. Perfect for bedrooms, offices, or smaller living areas, this system delivers quiet, efficient heating and cooling in two separate zones.
Why Choose MRCOOL DIY?
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True DIY Installation – No special tools, training, or HVAC license required. The included pre-charged Quick Connect® line sets come filled with eco-friendly R-454B refrigerant, making installation fast and hassle-free.
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Save Thousands on Installation – Skip the high labor costs of traditional systems by doing it yourself with easy step-by-step video instructions.
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reliable comfort throughout the year – This heat pump design provides cooling in summer, heating in winter, and dehumidification during wet seasons.
Advanced Features
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23.9 SEER2 Efficiency – Energy-saving inverter technology keeps comfort high and utility bills low.
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Smart Controls – Operate your system with the MRCOOL Smart Controller app, Amazon Alexa, or Google Home. Each air handler also comes with a wireless remote.
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Gold Fin® Condenser – Built for long-lasting durability, corrosion resistance, and reliable performance.
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Follow Me® Function – Sensors in the remote adjust the temperature based on where you are in the room.
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Low Ambient Cooling – Keeps working even in cold outdoor conditions.
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Alerts & Self-Diagnostics – Easy-to-read digital display shows error codes, filter reminders, and refrigerant alerts for simple maintenance.
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Quiet Comfort – Sleep mode saves energy overnight, while mute mode eliminates lights and alerts for undisturbed rest.
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Auto Restart – System remembers your last settings and resumes automatically after a power outage.
Warranty & Support
Your investment is protected with a 7-Year Compressor Warranty (with optional Lifetime Compressor Warranty upgrade), 5-Year Parts Warranty, and lifetime technical support from MRCOOL.
Key Specs
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System Capacity: 18,000 BTU
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Air Handlers Included: 2 × 6,000 BTU
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Efficiency: 23.9 SEER2
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Refrigerant: R-454B, pre-charged Quick Connect® line sets
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Coverage: ~200 sq. ft. per air handler (400 sq. ft. total)
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Power: 208/230V
Perfect For:
✔ Two small bedrooms
✔ Home office + guest room
✔ Studio or small apartment zones
The MRCOOL DIY 5th Gen Multi-Zone 18k Dual Zone Mini Split (6K + 6K) is the easiest, most cost-effective way to enjoy professional-grade HVAC comfort without professional installation costs.
👉 Order today from this retailer and enjoy free shipping, nationwide delivery, and expert support!
Shipping Policy
Free Standard Shipping
We offer free standard shipping on all orders. Orders are processed within 1–2 business days and typically arrive within 5–7 business days.
Expedited Shipping
Expedited shipping options are available at checkout. Expedited orders placed before 12pm EST ship the same business day.
Order Tracking
Once your order ships you will receive a confirmation email with a tracking number. You can track your shipment at any time through our website or the carrier's portal.
International Shipping
We currently ship within the United States only. International shipping is not available at this time.
Return Policy
30-Day Returns
We accept returns within 30 days of delivery. Items must be unused, in their original packaging, and in the same condition as received.
How to Initiate a Return
Contact our support team at sales@homecrucial.com with your order number and reason for return. We will provide a prepaid return label within 1–2 business days.
Refunds
Refunds are processed within 5–7 business days after we receive the returned item. The refund will be issued to your original payment method.
Non-Returnable Items
Items that have been installed, used, or damaged after delivery are not eligible for return.
Warranty
Manufacturer's Warranty
All products sold at Home Crucial are covered by the manufacturer's warranty. Warranty terms vary by brand and product — please refer to the documentation included with your product for specific details.
What Is Covered
Manufacturer warranties typically cover defects in materials and workmanship under normal use and conditions. Coverage does not include damage caused by misuse, improper installation, or normal wear and tear.
Warranty Claims
To initiate a warranty claim, contact us at sales@homecrucial.com with your order number, a description of the issue, and photos if applicable. We will coordinate with the manufacturer on your behalf.
Extended Protection
Extended warranty and protection plans may be available for select products. Contact us for more details.
Customer Reviews
★★★★★ 4.9 out of 5 · 20 reviews
High-efficiency 5th Gen ENERGY STAR® rated DIY mini split heat pumps.
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Outdoor esthetics do matter.
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Create your bundle with ease.
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Authorized Dealer of Mr Cool™.
