Multi Zone Mini-Splits
Multi zone DIY mini splits run two or three indoor units off a single outdoor condenser, so you can heat and cool a whole floor — up to 1,800 sq ft — with independent temperature control in every room. Each Zone Air® system includes matched pre-charged R454B quick-connect linesets for every zone: no vacuum pump, no refrigerant handling, no EPA card.
Dual zone wall-mount systems start at $3,499.99; 3 zone systems from $4,199.99. Wall mount, ceiling cassette, and concealed ducted indoor units available.
Comparing brands before you buy? Read our ranking of the best DIY multi-zone mini split systems for 2026, which puts Zone Air head-to-head with MRCOOL DIY, Pioneer, and Senville, or start with the best DIY mini split heat pump brands for 2026. Comparing brands? See which brands offer pre-charged quick connect mini splits. Shopping for two rooms? Read our guide to the best dual zone precharged mini split system. Only need two rooms? See our best 2 zone diy mini split comparison. Comparing two-room systems? Read our best dual zone mini split reviews and easy installation guide. New to two-zone systems? Start with our dual zone DIY mini split guide. Looking at MRCOOL's 18K dual zone? Read our MRCOOL 5th Gen dual zone 18K specs guide first.
