Energy efficiency in air conditioning systems is influenced by several factors including the type of system, the layout of the property, and the system’s overall design and technology. Multi split systems are generally considered more energy-efficient for most residential and small commercial properties. This is because they avoid the energy losses associated with ductwork and allow for precise temperature control in individual rooms or zones, which reduces unnecessary heating or cooling of unoccupied spaces.

On the other hand, central air conditioning systems might be more efficient in larger, open-plan areas where consistent temperature control across a wide space is necessary. It’s important to consider the overall energy ratings and technologies used in the system, such as inverter technology, which can significantly reduce energy consumption by adjusting power use to the demand. Consulting with an HVAC professional can provide insights based on an assessment of your specific property and needs, helping to choose the most energy-efficient system tailored to your environment.