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Technical Basics
Mini-Split Sizing & Zoning Basics
An accessible introduction to load considerations, equipment selection, and zone planning.
Every property is different. Use this overview as a planning aid, then confirm current program requirements and technical recommendations for your specific project.
01
Why sizing matters
Comfort and efficiency depend on matching equipment capacity to the home rather than relying on square-footage rules alone.
02
Think in zones
Room use, solar exposure, floor level, door patterns, and occupancy all influence how zones should be organized.
03
Plan placement carefully
Indoor and outdoor unit locations affect airflow, serviceability, sound, condensate management, and appearance.
04
Connect design to the envelope
Air sealing and insulation can change heating and cooling loads, so home-performance work should inform the final system design.