Choosing the right air conditioning Northern Beaches system depends on more than the size of your home. The number of areas you want to heat or cool, your home's layout, available ceiling or roof space, how you use each room and your future plans can all affect your options. The main systems to consider are split-system, multi-head, ducted and bulkhead air conditioning. Each has different installation requirements and may suit a different way of living. This guide explains the key differences and the practical factors to consider before choosing a system or requesting a quote.