Split system air conditioning for targeted comfort

A split system air conditioner is often the most practical choice when you want to heat or cool one room or one main living zone. It uses an indoor head unit connected to an outdoor unit, giving you efficient reverse cycle heating and cooling without the need for ductwork.

For Perth homes, split systems are commonly used in bedrooms, open-plan living areas, home offices, granny flats and rooms that are difficult to connect to a ducted system. They can also be a cost-effective option when you only need comfort in the areas you use most.

Choosing the right size split system

The right capacity depends on more than floor area. Ceiling height, insulation, window size, afternoon sun, room orientation, roof type and how many people use the room all affect the heat load.

An undersized unit may run constantly and struggle in summer. An oversized unit can short-cycle, waste energy and create poor humidity control. Ultima Air can assess the room and recommend a suitable capacity, indoor unit location, outdoor unit location, drainage path and electrical requirements before installation.

Installation, replacement and servicing

A neat split system installation should consider airflow across the room, access for maintenance, safe condensate drainage, compliant pipework and a practical outdoor unit location.

We can also replace older split systems that are noisy, inefficient, leaking or no longer cooling properly. Regular servicing helps keep filters, coils and drains clean so the system can move air efficiently and avoid preventable faults.