The right air conditioning system depends on the building, how the space is used, and how much control you want. Getting the size right matters more than most people expect. A unit that is too small will run constantly and still struggle, while one that is too large cycles on and off, wastes energy and cools unevenly.
For a single room, such as a home office or a bedroom that gets too warm, a wall-mounted split system is usually the simplest and most efficient choice. For larger homes or commercial spaces with several rooms, a multi-split or a ducted system lets you cool different areas independently. Shops, offices and hospitality venues often benefit from ceiling cassettes that spread air evenly without taking up wall space.
We design every system around the actual building rather than a rule of thumb, taking in the layout, glazing, occupancy and your running-cost goals. That is how you end up with cooling that is comfortable, quiet and economical to run for years.