Wall-mounted air conditioning units are installed high on a wall, making them ideal for smaller spaces such as bedrooms, living rooms, offices, server rooms, and shops. Positioned correctly, they provide even airflow throughout the room. Wall units are exceptionally quiet, allowing most people to sleep comfortably with the system running.

Larger rooms may require multiple units spread evenly to avoid hot and cold spots. Some installers may suggest using a single, very powerful unit to cut costs, but these are generally intended for industrial or large commercial spaces. In a domestic or office setting, a single high-powered unit can be too noisy and create uncomfortable gusts of air.

Using multiple smaller units ensures the balance is just right, reducing noise while delivering the perfect amount of cooling or heating throughout the space.