Take control of comfort in two separate rooms with the MRCOOL® DIY® 5th Generation 18,000 BTU Multi-Zone Ductless Mini Split Heat Pump System, available from Skyway AC Sales. This complete two-zone system pairs an 18,000 BTU outdoor condenser with one 6,000 BTU air handler and one 18,000 BTU air handler, making it an excellent solution for conditioning spaces of different sizes without the expense of traditional HVAC installation.

Designed specifically for homeowners, the MRCOOL DIY® Series features pre-charged Quick Connect® line sets that eliminate the need for specialized HVAC tools, vacuum pumps, or refrigerant charging. Many homeowners can install this system themselves while saving thousands in installation costs, making it one of the easiest and most affordable ways to enjoy year-round comfort.

The included 6,000 BTU air handler is ideal for rooms up to approximately 200 square feet, while the 18,000 BTU air handler effectively heats and cools areas up to approximately 800 square feet. Together, they deliver personalized climate control for bedrooms, garages, home offices, additions, workshops, or other living spaces.

Built with advanced heat pump technology, this system provides both cooling during the summer and efficient heating throughout the colder months by transferring heat from the outdoor air—even when temperatures begin to drop. The high-efficiency 23.9 SEER2 DC Inverter compressor automatically adjusts performance to maintain consistent temperatures while reducing energy consumption and lowering monthly utility bills.

Each indoor air handler features adjustable airflow louvers for improved air distribution, helping eliminate hot and cold spots while creating a more comfortable environment throughout each room. For service or installation verification, the units also include a convenient manual emergency operation mode located beneath the front panel, allowing technicians or homeowners to quickly test cooling operation when needed.

The MRCOOL DIY® 5th Generation Multi-Zone System is engineered with durable, corrosion-resistant components, including a Gold Fin® condenser for enhanced protection in harsh environments and next-generation R-454B refrigerant, offering improved efficiency with a lower environmental impact.

When you purchase from Skyway AC Sales, you're not simply buying a mini split—you'll have access to knowledgeable support from a team dedicated to helping homeowners select the right comfort solution for their home.

Key Features

• 18,000 BTU Multi-Zone DIY Heat Pump Condenser
• Includes One 6,000 BTU Air Handler
• Includes One 18,000 BTU Air Handler
• 23.9 SEER2 High-Efficiency Performance
• Easy DIY Installation
• Pre-Charged Quick Connect® Line Sets Included
• No Vacuum Pump or Specialized HVAC Tools Required
• Heating & Cooling for Two Independent Zones
• Energy-Efficient DC Inverter Technology
• 100% Factory-Sealed Refrigeration System
• Gold Fin® Corrosion-Resistant Condenser
• Environmentally Friendly R-454B Refrigerant
• SmartHVAC® App Control via Wi-Fi
• Compatible with Amazon Alexa & Google Assistant
• Follow Me® Remote Control Technology
• Low Ambient Cooling Capability
• Whisper-Quiet Indoor Operation
• 7-Year Compressor Limited Warranty
• Optional Limited Lifetime Compressor Warranty
• 5-Year Parts Limited Warranty
• Lifetime Technical Support

Whether you're upgrading a home office, bedroom, garage conversion, or multiple living spaces, the MRCOOL DIY® 5th Gen 18K Multi-Zone Mini Split System with 6K + 18K Air Handlers delivers reliable, energy-efficient comfort with a homeowner-friendly installation process. Shop with confidence at Skyway AC Sales, your trusted source for genuine MRCOOL® DIY heating and cooling solutions.

Specifications

Information & Guides

Installation Manual

Brochure

Service Manual

Remote Manual

Accessory Manual

Warranty

AHRI Cert

Energy Guide