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Ducted vs. Split System Air Con: Which is More Expensive?

15th Apr 2025 in Air Conditioning Blogs

Is Ducted Air Con More Expensive Than Split System?

When deciding between ducted air conditioning and a split system, cost is often the biggest factor. The question many homeowners ask is, is ducted air con more expensive than a split system? The short answer is yes. Ducted systems generally have a higher upfront cost due to extensive installation work and ducting requirements. However, while split systems are cheaper initially, ducted air conditioning may be more cost-effective in the long run, especially for larger homes or commercial spaces.

This guide will break down the installation costs, running costs, energy efficiency, and maintenance expenses for both systems, helping you determine the most cost-effective option for your home.

Installation Costs: Which System Costs More to Set Up?

Free Modern minimalist interior featuring a chair, table, and air conditioning unit. Stock Photo, modern ducted air conditioners, split system air conditioning

Installation costs vary significantly between ducted air conditioning vs split system.

  • Ducted air conditioners require a central unit installed in the roof space, along with ductwork throughout the home. The process is more labour-intensive and requires access to the roof space and interior walls.
  • Split system air conditioners involve installing an indoor unit on a wall and an outdoor unit outside the home. Installation is typically easier, requires fewer modifications, and is less costly.

Ducted systems require a higher investment upfront, while split systems are cheaper and quicker to install.

Running Costs: Which System is More Cost-Effective Over Time?

Running costs are a key consideration when comparing ducted air conditioning vs split system.

  • Ducted systems cool the entire house, meaning they generally consume more energy. However, zoning technology allows homeowners to cool only specific areas, reducing energy consumption.
  • Split systems are more energy efficient for cooling a single room, but installing multiple units can significantly increase energy costs over time.

Energy efficiency depends on factors such as cooling capacity, home insulation, and daily usage patterns. While ducted systems may have higher running costs, energy-efficient models with zoning features can help reduce power bills.

Energy Efficiency: Which System Saves More Energy?

Energy efficiency plays a crucial role in long-term cost savings.

  • Ducted air conditioning systems with reverse cycle technology and zoning options can lower energy consumption when cooling specific rooms instead of the entire house.
  • Split systems are ideal for small spaces but may require multiple units in larger homes, leading to higher running costs.

Regular maintenance and smart temperature management can significantly improve energy efficiency for both systems.

Cooling Capacity & Home Layout: Which System is Best?

The choice between ducted air con vs split system depends on home size and cooling needs.

  • Ducted air conditioners are designed for larger spaces and offer even temperature control throughout the home.
  • Split systems are better suited for single rooms or smaller areas, particularly in homes with limited space for ductwork.

For homes requiring whole-house cooling, a ducted system is the better option. For targeted cooling, a split system is more cost-effective.

Maintenance & Longevity: Which System Lasts Longer?

Regular maintenance is essential to keep both ducted air conditioners and split system units functioning efficiently.

  • Ducted air conditioning requires filter cleaning, duct inspections, and professional servicing to prevent dust buildup and maintain efficiency.
  • Split systems need regular filter cleaning and periodic servicing to ensure optimal performance.

Ducted systems often have longer lifespans but require more servicing, while split systems are easier and cheaper to maintain.

Cost-Effectiveness: Which System is the Better Investment?

Free A cozy bedroom with a modern design featuring a cityscape view through large windows. Stock Photo

The cost-effectiveness of each system depends on usage and long-term expenses.

  • Ducted air conditioning is more cost-effective for larger homes and offers greater comfort with zoning options.
  • Split systems are a budget-friendly option for cooling individual rooms or smaller spaces.
  • Energy efficiency, running costs, and maintenance needs determine long-term savings for each system.

If cooling only a few rooms, a split system is the more cost-effective choice. For whole-home comfort, ducted aircon provides better value over time.

Choosing the Right System for Your Home

Deciding between ducted air conditioning vs split system depends on your home’s size, cooling needs, and budget. While ducted aircon has higher installation costs, it offers even temperature control and zoning efficiency. Split systems are more affordable upfront but may lead to higher energy costs if multiple units are needed.

For expert advice on installation, servicing, and maintenance, contact our team today. Let us help you choose the most cost-effective cooling solution for your home.

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