Take control of your home comfort with the MRCOOL DIY® Multi-Zone 5th Generation 48,000 BTU 22 SEER Two Zone Ductless Mini Split Heat Pump System (18K + 36K Air Handlers). Perfect for medium to large homes, this DIY mini split system delivers powerful heating and cooling while saving you thousands on installation costs.

Designed for true do-it-yourselfers, this system features pre-charged Quick Connect® line sets filled with eco-friendly R-454B refrigerant, so no HVAC license, vacuum pump, or specialty tools are required. Simply connect the lines, mount the air handlers, and enjoy year-round comfort.

System Highlights

• Complete 2-Zone Coverage: Includes one 18,000 BTU air handler (ideal for spaces up to ~800 sq. ft.) and one 36,000 BTU air handler (up to ~1,650 sq. ft.).

• All-Season Performance: Provides efficient cooling in summer, heating in winter, and dehumidification in humid months.

• Smart Controls Built In: Adjust temperatures, change modes, and monitor your system with the MRCOOL Smart Controller app, Amazon Alexa, or Google Home.

• Energy Savings: With a 22 SEER rating and DC inverter technology, this ductless system keeps utility bills low without sacrificing comfort.

• Worry-Free Operation: Gold Fin® condenser resists corrosion, automatic leak detection provides alerts, and filter reminders help you keep maintenance simple.

• DIY Friendly: Backed by detailed install videos, lifetime technical support, and industry-leading warranties — 7 years compressor, limited lifetime on select compressors, and 5 years parts.

Why Choose MRCOOL DIY from MRCOOL DIY Direct?

• Nationwide shipping on all MRCOOL DIY systems.

• Full factory warranty when purchased through authorized dealer MRCOOL DIY Direct.

• Trusted support from the #1 online MRCOOL store for DIY homeowners.

Upgrade your home today with the MRCOOL DIY 48,000 BTU Multi-Zone Heat Pump System, the easiest and most cost-effective way to get professional-grade heating and cooling — without the professional price.