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NEW R-454B Refrigerant

MRCOOL DIY 5th Gen Multi-Zone 2-Zone 18,000 BTU 24 SEER2 (6K + 9K) Ductless Mini-Split Air Conditioner and Heat Pump

MRCOOL DIY 5th Gen Multi-Zone 2-Zone 18,000 BTU 24 SEER2 (6K + 9K) Ductless Mini-Split Air Conditioner and Heat Pump

Regular price $2,998.00 USD
Regular price $4,410.00 USD Sale price $2,998.00 USD
Save $1,412.00 Sold out
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SKUDIYM218HP0609

Type18K

Line Set for 6K Air Handler #1
Line Set for 9K Air Handler #2
  • Official MRCOOL store logo – used to represent brand-authorized sellers and verified HVAC product listings.Authorized MRCOOL Dealer
  • Customer service award graphic – MRCOOL’s 5-star HVAC support rating for Easy Pro, DIY, and multi-zone systems.5-Star Customer Service
  • Fast shipping badge for MRCOOL mini splits – official delivery services offering nationwide coverage and tracking.Fast & Secure Shipping
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PRODUCT DESCRIPTION

MRCOOL DIY 5th Gen Multi-Zone 18,000 BTU 23.9 SEER2 2 Zone Ductless Heat Pump Split System – 6K + 9K | MRCOOL DIY Direct

The MRCOOL DIY 5th Gen Multi-Zone 18,000 BTU 23.9 SEER2 Ductless Heat Pump Split System (6K + 9K) is the perfect solution for energy-efficient comfort in two separate rooms. Designed for true DIY installation, this dual-zone system requires no HVAC license, no special tools, and no costly contractor fees—making it one of the most affordable and accessible heating and cooling solutions on the market.

Powerful & Flexible Comfort

  • 18,000 BTU condenser delivers reliable heating and cooling for two indoor zones.

  • Includes 6,000 BTU air handler (ideal for up to 200 sq. ft.) and 9,000 BTU air handler (ideal for up to 400 sq. ft.).

  • Operates as a heat pump—cooling in summer, heating in winter, and dehumidifying in wet seasons.

Easy DIY® Installation

  • Features MRCOOL’s exclusive Pre-Charged Quick Connect Line Sets, filled with eco-friendly R-454B refrigerant.

  • Installs without vacuum pumps, gauges, or specialized tools.

  • Backed by MRCOOL’s lifetime technical support and step-by-step video guides.

Smart Controls & Modern Features

  • Control each zone with the MRCOOL Smart Controller app, available for iOS and Android.

  • Fully compatible with Amazon Alexa and Google Home voice control.

  • Front-panel LED display shows temperature, modes, alerts, and error codes for easy troubleshooting.

  • Includes wireless remote controls for convenient operation.

Energy Efficiency & Cost Savings

  • Impressive 23.9 SEER2 efficiency rating saves on utility bills.

  • Sleep Mode adjusts comfort while reducing energy usage overnight.

  • Timer function allows you to schedule heating or cooling cycles to match your lifestyle.

  • Gold Fin® condenser coating improves durability and resists corrosion.

Built-In Protection & Reliability

  • Low refrigerant alert warns of possible leaks.

  • Auto-restart resumes operation after a power outage.

  • Air filter cleaning reminders help maintain peak efficiency.

  • Optional lifetime compressor warranty (standard: 7-year compressor, 5-year parts).

Key Features at a Glance

✔ Easy DIY® Installation
✔ Pre-Charged Quick Connect Line Set
✔ Eco-Friendly R-454B Refrigerant
✔ Multi-Zone Comfort Control
✔ Energy Efficient DC Inverter Technology
✔ Smart App + Voice Control
✔ Gold Fin® Condenser Protection
✔ Follow Me® Remote Sensor
✔ Lifetime Technical Support


This dual-zone MRCOOL DIY system gives you the freedom to create personalized comfort in two spaces while saving thousands on professional installation. Whether you need heating, cooling, or dehumidification, the 18,000 BTU 5th Gen system has you covered—all with easy operation, smart technology, and dependable performance backed by MRCOOL’s warranty.

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