What Is a Ductless Mini-Split?
Mini-splits consist of an outdoor compressor unit connected to one or more indoor air handlers via refrigerant lines. They heat and cool without ductwork.
Ideal Applications
Mini-splits excel in home additions, converted garages, older homes without ducts, and room-by-room zoning. They're popular in Bay Area Victorians and Craftsman homes.
Single-Zone vs. Multi-Zone Systems
Single-zone systems serve one room. Multi-zone systems connect up to 8 indoor units to one outdoor unit, each controllable independently.
Installation Requirements
Each indoor unit needs wall or ceiling mounting, power connection, and a 3-inch hole for refrigerant lines. Outdoor units need a stable pad and electrical connection.
Efficiency Advantages
Without ductwork losses (which can waste 25-30% of energy), mini-splits deliver excellent efficiency. Many achieve 30+ SEER ratings.
Cost Considerations
Single-zone installations range from $3,000-$5,000 installed. Multi-zone systems cost $5,000-$15,000 depending on the number of zones.