MRCOOL DIY 5th Gen Multi-Zone 2-Zone 18,000 BTU 24 SEER2 (6K + 12K) Ductless Mini-Split Air Conditioner and Heat Pump

Heat or cool two spaces with the MRCOOL DIY 5th Gen Multi-Zone 18,000 BTU 23.9 SEER2 2 Zone Ductless Heat Pump Split System – 6K + 12K, available at MRCOOL DIY Direct. This dual-zone system is designed for simple DIY installation with no special tools, training, or HVAC certification required—saving you thousands on install costs while delivering year-round comfort.

The included (1) 6,000 BTU and (1) 12,000 BTU wall-mounted air handler pair with the 18,000 BTU condenser to provide efficient heating and cooling for areas up to approximately 200 sq. ft. and 550 sq. ft. respectively. Whether you’re upgrading an older HVAC system, finishing a basement, or adding comfort to multiple rooms, this unit offers flexible, reliable, and energy-saving performance.

Thanks to MRCOOL’s DIY Quick Connect® line sets, pre-charged with eco-friendly R-454B refrigerant, installation is quick, clean, and hassle-free—no vacuum pump or refrigerant handling required. Plus, with built-in smart features, you can control your comfort from anywhere using the MRCOOL SmartHVAC app, or voice commands with Amazon Alexa and Google Home.

Key Features:

• 18,000 BTU Dual-Zone Condenser with 6K + 12K Air Handlers

• 23.9 SEER2 Energy Efficiency with inverter technology

• DIY Quick Connect® Line Sets pre-charged with R-454B refrigerant

• Easy Installation — no HVAC tech required

• Heats, cools, and dehumidifies year-round

• Smart Controls via app, Alexa, or Google Home

• Gold Fin® Condenser for corrosion resistance and durability

• Quiet operation with Sleep Mode, Follow Me® function, and display mute option

• Alerts for filter cleaning, refrigerant levels, and troubleshooting codes

• Warranty: 7-Year Compressor (optional Lifetime), 5-Year Parts

The MRCOOL DIY Multi-Zone 18K (6K + 12K) delivers comfort you can trust in every season. From blazing summers to freezing winters, this dual-zone ductless mini split system is built for efficiency, reliability, and true DIY convenience.