Air Distribution System Selector

You're choosing an air distribution topology early in design. The useful difference is visible in the path: where air volume changes, where heat is added, and whether each room can respond to its own load.

These six diagrams follow the same three rooms through different system concepts. Cyan traces the central supply, orange marks local heat or a separate warm-air path, and moving markers show the distribution. This is a topology comparison, not a cost ranking or a system-selection verdict.