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.