What is a ductless AC system and how does it work?

A ductless AC (mini-split) is a high-efficiency heating and cooling system that serves rooms without ductwork. It pairs an outdoor unit with one or more indoor air handlers via a small refrigerant line. Each indoor unit has its own thermostat, so you set different temperatures by zone. Indoor units mount on a wall, ceiling, or floor. Installations are simpler and avoid duct losses. Annual maintenance helps performance and keeps manufacturer warranties intact. Ideal fits include homes, add-ons, garages, and small apartments in Novato.