MRCOOL® DIY® 5th Gen Multi Zone

About

The MRCOOL 5th Generation Multi-Zone DIY series is the industry’s first true whole-home ductless HVAC system designed for homeowners. With pre-charged QuickConnect® line sets, smart controls, flexible indoor unit styles, and R-454B next-gen refrigerant, you can heat and cool multiple rooms without hiring an HVAC installer or handling refrigerant. Choose from 2-zone, 3-zone, 4-zone, and 6- zone configurations to match the way your home is actually used—bedrooms, living areas, sunrooms, basements, shops, and detached spaces. Every system uses factory-sealed line sets and advanced inverter technology to deliver quiet performance, lower energy bills, and reliable comfort in hot or cold climates. What Size Multi-Zone System Do I Need? • 2-Zone = 200–800 sq ft • 3-Zone = 800–1,400 sq ft • 4-Zone = 1,200–2,000 sq ft • 5-6 Zone = 1,500–2,500 sq ft Insulation, ceiling height, sun exposure, and room count affect sizing. • 5th Generation R-454B refrigerant platform • No-Vac QuickConnect® pre-charged lines — no vacuum pump • SmartHVAC™ App + Alexa® / Google Assistant® voice control • Multi-room comfort with individual temperature control • Up to 20.5 SEER2 and ultra-quiet inverter compressors • Compatible with wall mounts or OuttaSight® ceiling cassettes Whether you’re upgrading an entire home, finishing a basement, remodeling a rental, or expanding a shop or office, MRCOOL Multi-Zone DIY systems provide the most reliable, future-ready HVAC solution available for true do-it-yourself installation.

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