Air Conditioning Systems in Australia: Split, Multi & Ducted

Couple relaxing in modern living room with air conditioning

What Are the Main Types of Air Conditioning Systems?

Split System Air Conditioning

A split system is one of the most common types of air conditioners in Australian homes. It consists of two main components an indoor unit and an outdoor compressor connected by pipes that carry refrigerant.

♻️ Benefits

  • Ideal for cooling a single room or open plan space.
  • Energy-efficient and affordable to run.
  • Simple and quick to install.

 

⚠️ Considerations

  •  Only cools one area at a time.
  • Multiple units required for whole home cooling.

Split systems are perfect for apartments, bedrooms, or living rooms where zoned cooling is sufficient.

Multi-Split Air Conditioning

Multi-split systems offer a flexible and scalable solution for cooling multiple rooms with just one outdoor unit connected to several indoor units.This system is ideal for medium sized homes or spaces where different rooms require independent temperature control.

♻️ Benefits

  •  Allows you to cool multiple rooms at once using a single outdoor unit.
  • Each indoor unit can be controlled independently perfect for personalised comfort.
  • More energy-efficient than installing several split systems.

 

⚠️ Considerations

  • Higher upfront installation cost than a standard split system.
  • Installation complexity increases with the number of indoor units.
  • Not as powerful as ducted systems for large open areas.

Multi-split systems are perfect for households where family members have different comfort preferences like cooling bedrooms at night while keeping the living room off.

Ducted Air Conditioning

Ducted air conditioning is the premium choice for whole home comfort. This system uses a central unit (usually installed in the ceiling or under the floor) that distributes cooled or heated air through a network of ducts into each room via discreet vents.

Benefits

  • Delivers consistent temperature across the entire home.
  • Almost invisible vents are sleek and blend into the ceiling.
  • Can be zoned to control airflow in specific areas, improving energy efficiency.

⚠️ Considerations

  •  Higher upfront cost due to complexity and scale of installation.
  • Requires sufficient roof or underfloor space for ducts.
  • Best suited for larger homes or office spaces.

Ducted systems are the ultimate solution for homeowners who want seamless, silent, and whole of home climate control with minimal visual impact.

Split vs Multi-Split vs Ducted: Which One is Right for You?

Choosing the right air conditioning system can feel overwhelming but it all comes down to your home’s layout, lifestyle needs, and budget. Here’s a quick comparison to help you decide:

Comparison chart of split system, multi-split system, and ducted air conditioning features.

Each system has its strengths. If you’re cooling one room, a split system may be all you need. For more rooms and flexibility, a multi-split is worth considering. And if whole home comfort with a seamless look is your priority, ducted air conditioning is the clear winner.

Installation & Maintenance: What You Need to Know

Installing an air conditioning system in Australia isn’t just about comfort it’s also about planning, budgeting, and choosing the right professionals.

🔧 Installation Costs

The price of installation depends on several factors including the size of the system, the type of property, and the complexity of the work required. Here’s a general guide:

 Split system:
💰 From $1,500 to $3,000 AUD (including basic installation)

 Multi-split system:
💰 From $3,000 to $7,000 AUD depending on the number of indoor units

 Ducted system:
💰 $8,000 to $15,000 AUD or more, especially in larger homes

These are rough estimates and can vary widely. That’s why it’s always recommended to request a free site inspection and detailed quote from a certified installer like Glower’s expert team.

To ensure long-term performance and energy efficiency, regular maintenance is key:

  • Clean filters every 1–2 months (especially during high use seasons)
  • Schedule professional servicing once a year
  • Check for blocked vents and clean ducts in ducted systems every 2–3 years
  • Keep the outdoor unit clear of leaves, dust, and debris

Good maintenance not only prolongs your system’s life but also keeps your energy bills under control.

Energy Efficiency & Government Rebates in Australia

Australia’s climate demands powerful cooling but that doesn’t mean your energy bills have to suffer. Modern air conditioning systems are becoming more efficient than ever, and homeowners can take advantage of government incentives to make smart, sustainable upgrades.

 Why Energy Efficiency Matters

An energy-efficient air conditioner:

  • Reduces your electricity bills 💡
  • Minimises your environmental impact 🌏
  • Operates more quietly and reliably over time 🔇

When comparing systems, look for units with high Energy Star ratings and inverter technology, which adapts power output based on the room’s needs.

Rebates You Might Be Eligible For

Depending on your state or territory, you may qualify for rebates or incentives when upgrading to an energy-efficient air conditioning system. For example:

Glower helps customers navigate these programs to maximise their savings and minimise their emissions. We’ll guide you step by step through the application process.

Our Expert Recommendation: What System Should You Choose?

The perfect air conditioning system depends on your home’s layout, how many rooms you need to cool, and your budget. Here’s a quick guide from the experts at Glower:

🏠 Apartments or small homes?
A split system offers excellent value, efficiency, and ease of installation.

🛏️ Multiple bedrooms or individual control preferences?
 Go for a multi-split system it’s flexible and efficient without overwhelming your outdoor space.

🏡 Large family home or whole house comfort?
Ducted air conditioning is the gold standard for seamless, powerful climate control.

Still unsure? That’s where we come in. Our team of certified professionals will assess your home and energy goals to recommend the best system tailored to your lifestyle.

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