Split vs Ducted Air Conditioning
When it comes to keeping your home comfortable through Australia’s hot summers and cool winters, air conditioning is essential. But if you’re deciding between a split system and a ducted air conditioning system, the choice isn’t always straightforward.
Both options can deliver excellent comfort and efficiency, but they differ in cost, design, and how well they suit different types of homes or businesses. In this guide, we’ll break down the key differences between split and ducted air conditioning systems — helping you make an informed decision before installation.
What Is a Split System Air Conditioner?
A split system is made up of two main parts: an indoor unit that blows cool or warm air into the room, and an outdoor unit that removes the heat from inside your home.
Split systems are ideal for individual rooms such as bedrooms, living areas, or small offices. You can install multiple indoor units in different rooms (known as a multi-split system) to create a flexible cooling and heating setup throughout your home.
Key advantages of split systems:
- Affordable upfront cost and simple installation
- Great for smaller homes, units, and apartments
- Energy-efficient when used in single zones
- Modern designs that blend neatly with your décor
- Quiet operation, perfect for bedrooms and offices
Things to consider:
Each indoor unit operates separately, which means running costs can increase if multiple rooms need cooling at the same time. Installing several split systems across a large property can also make maintenance and appearance a little more complex.
What Is a Ducted Air Conditioning System?
A ducted air conditioning system uses a central indoor unit, usually installed in the roof space or under the floor, that distributes air through ducts to multiple vents throughout your home.
With ducted systems, you can control the temperature in each zone using a central controller — and in many cases, smart zoning allows you to heat or cool only the areas you’re using.
Key advantages of ducted systems:
- Whole-home comfort from one system
- Clean, minimal look with only ceiling or floor vents visible
- Zoning options for energy-efficient temperature control
- Quieter overall operation, as the main unit is tucked away
- Adds value to larger or modern homes
Things to consider:
Ducted systems have a higher upfront cost and require more space for installation. They’re best suited to larger homes or new builds where ducting can be easily integrated during construction or renovations.
Comparing Cost: Split vs Ducted
Split system costs are generally lower to install, ranging from around $2,000 to $4,000 for a single room, depending on size and capacity. Multi-split systems (where one outdoor unit powers multiple indoor units) can cost more, but they still remain more affordable than a full ducted setup.
Ducted air conditioning systems start around $8,000 for small homes and can exceed $15,000 for larger properties or complex layouts. However, they provide seamless comfort across the whole house and can be more cost-effective in the long term if you plan to heat or cool multiple rooms regularly.
When comparing long-term value, consider how you use your home. If you only need to cool a few rooms at a time, split systems might make more sense. But if consistent, whole-home comfort is your goal, a ducted system is worth the investment.
Energy Efficiency and Running Costs
Both split and ducted air conditioners can be highly efficient — but how they’re used makes all the difference.
Split systems are very efficient for targeted cooling or heating, since you’re only conditioning one area. Models with high energy-star ratings and inverter technology can significantly reduce power consumption.
Ducted systems, meanwhile, are most efficient when paired with zoning and smart thermostats. By cooling or heating only occupied areas, you can lower running costs while maintaining a consistent temperature throughout the home.
As a rule of thumb:
- Split systems suit smaller homes, apartments, or occasional use.
- Ducted systems suit larger homes, families, or those seeking uniform comfort across multiple rooms.
Installation Requirements
Split systems are relatively simple to install. The indoor and outdoor units are connected via small pipes and electrical cables, which can usually be installed in a day. Installation is flexible, making split systems a great choice for existing homes or rentals (with landlord approval).
Ducted systems, on the other hand, require adequate ceiling or underfloor space to run the ductwork. The process can take one to two days and may involve some building adjustments. That’s why many homeowners choose to install ducted air conditioning during new builds or major renovations — it’s easier and more cost-efficient to integrate the system from the start.
Comfort and Aesthetics
When it comes to appearance and comfort, ducted systems have a clear advantage. The vents are discreet, providing a clean, seamless finish that complements modern interiors. Airflow is also more consistent, creating a stable temperature across the home.
Split systems, while more visible, offer flexibility and precise control. You can set different temperatures in each room, which is great for families with varying comfort preferences.
Which System Is Right for You?
Here’s a quick summary to help guide your choice:
| Feature | Split System | Ducted System |
|---|---|---|
| Upfront Cost | Lower | Higher |
| Best For | Small homes, single rooms, apartments | Medium to large homes, full property coverage |
| Energy Use | Low when used for one or two rooms | Efficient with zoning and smart control |
| Installation | Simple, minimal disruption | Requires roof or underfloor space |
| Control | Individual room units | Centralised control with zoning options |
| Aesthetic | Indoor wall unit visible | Vents only – clean, modern look |
The Bottom Line
If you live in Batemans Bay or Canberra, the right air conditioning system depends on how you use your space.
A split system is perfect for smaller homes, holiday properties, or offices where you only need to cool or heat specific areas.
A ducted system is ideal for larger homes, multi-storey layouts, or anyone who values discreet design and whole-home comfort.
At SolarHub, our local team can assess your property, recommend the right system, and provide transparent pricing on both split and ducted air conditioning solutions. Whether you’re upgrading an existing system or fitting out a new home, we’ll ensure you get efficient, reliable comfort built around the way you live.