Plan zones around the rooms used
The number and position of indoor heads should follow the rooms intended for cooling, not simply the number of rooms in the property. A sunroom, addition, or space missed by central ducts may have different requirements from several connected rooms. Review the layout, doors, and likely line routes before selecting single-zone or multi-zone equipment. This comparison helps define which areas the proposed system is intended to serve and avoids treating one head as a whole-house solution.
