Date Published:
June 6, 2025
Last Updated on:
June 6, 2025

Split System vs. Ducted Air Conditioning: Which is Right For You

Split System vs Ducted Air Conditioning

When searching for a cooling system, you’ve probably noticed two options come up again and again: split systems and ducted air conditioning. These are by far the most popular choices in Australian homes, but which one is right for you?

If you’re planning an air conditioning installation in Sydney, understanding the differences between these systems is key to making a smart, cost-effective investment. With insights from our local experienced installers at Ozcon Air, this guide will help you compare performance, cost, and suitability based on your home, lifestyle, and long-term goals.

Split  system air conditioning installation sydney

What Is a Split System Air Conditioner?

A split system air conditioner consists of two main components: an indoor unit (typically wall-mounted) and an outdoor unit (which houses the compressor and condenser). 

It’s designed to condition the air in a single room or defined space, making it a highly targeted, energy-efficient choice for smaller homes or apartments.

Expert tip from our licensed air conditioning installation experts in Sydney: Split systems are ideal for bedrooms, home offices, or living areas where isolated comfort is preferred without over-conditioning the rest of the home.

Benefits of Split System Air Conditioners:

  • Affordable upfront cost and installation
  • Great for zoned climate control
  • Energy efficient for individual rooms
  • Quick install with minimal building modifications
  • Low maintenance and accessible filter cleaning

Considerations:

  • Limited to single-room cooling/heating
  • Can become cluttered or aesthetically intrusive
  • Installing multiple units increases long-term costs
  • Each unit has a separate outdoor component, impacting outdoor layout

What Is a Ducted Air Conditioning System?

A ducted system distributes conditioned air via a central unit and a network of ducts installed in the roof space or under the floor. It’s best suited for larger homes, multi-room properties, or those undergoing renovations.

As fully licensed and insured installers working across Sydney’s Northern Beaches, Sutherland Shire, and beyond, we often recommend ducted systems for families or property managers seeking seamless, whole-home comfort.

Benefits of a Ducted Air Conditioner:

  • Whole-home coverage from a single system
  • Discreet installation with only vents visible indoors
  • Can be zoned to manage airflow to different areas
  • Adds long-term property value
  • Quiet, central operation for a streamlined experience

Considerations:

  • Higher upfront costs
  • Requires roof space or design planning
  • More complex to service
  • Professional design and installation is critical for performance and efficiency
Feature Split System Ducted System
Best For Single rooms, apartments, and small homes Whole-home climate control, large homes, multi-room setups
Installation Cost $1,200 – $4,000 per unit $6,000 – $15000+ (depending on size and complexity)
Installation Time 1 day per unit One to two days, more complex installation
Running Costs Lower for limited use (1–2 rooms) Lower per m² when cooling multiple rooms
Energy Efficiency High for spot cooling High when zoned; efficient for larger spaces
Aesthetic Impact Indoor units are visible Vents are discreet and ceiling-integrated
Zoning Capabilities Per unit, basic individual control Advanced zoning with optional smart control systems
Noise Levels Quieter inside; outdoor unit may produce moderate noise Very quiet operation indoors (central unit is isolated in ceiling/roof)
Maintenance Simple filter cleaning; Requires annual
easy access professional servicing of ducts and internal components
Property Value Impact Minimal Can add significant value to high-end or newly built properties
Ducted system air conditioning installation sydney

Performance, Efficiency & Energy Control

From a sustainability and energy efficiency perspective, both systems perform well when professionally installed and used as intended.

  • Split systems are perfect for climate control in smaller spaces, offering excellent cost-per-use efficiency.
  • Ducted air conditioners are more energy efficient per square metre in larger homes, especially when equipped with zoning and smart controllers.

As systems age, it's worth looking out for the signs it’s time to upgrade your air conditioning, such as poor airflow, inconsistent temperatures, or increased energy usage.

Professional recommendation: We always tailor installations based on layout, energy goals, and usage patterns. A poorly sized or installed system—ducted or split—will never perform as well as a system designed with your property in mind.

Environmental Impact & Sustainability

When choosing between a split system and a ducted air conditioner, it’s also worth considering the broader environmental impact. Energy efficiency isn’t just about reducing power bills; it’s also a key step toward minimising your carbon footprint.

  • Smart energy-saving AC systems reduce unnecessary power usage through timers, zoning, and app-controlled scheduling.
  • Many new systems use eco-friendly refrigerants with lower global warming potential (GWP).
  • Proper installation and sizing help prevent overuse and inefficiencies, which in turn reduce strain on the energy grid.

If sustainability matters to your household, talk to the team at Ozcon about high-efficiency models and smart upgrades that align with your values and budget.

How to Choose: Split System vs Ducted?

Every household has different priorities. Sydney homeowners and business owners navigate this choice by considering how the system aligns with their home's structure, energy efficiency goals, and day-to-day usage needs.

A split system might be the perfect fit for one home, while a ducted system makes more sense for another, especially when factors like aesthetics, future renovations, or household size come into play.

Here’s how to decide:

Every household has different priorities. Here’s how we help Sydney homeowners choose the best air conditioning solution:

Choose a split system if:

  • You’re only cooling/heating 1–2 rooms
  • You live in a unit, townhouse, or compact home
  • You prefer lower initial costs

Choose a ducted system if:

  • You want whole-home comfort
  • You’re building or renovating
  • You value aesthetics and seamless design
  • You want to increase property value

Trust Sydney’s Licensed Experts for Air Conditioning Installation

At Ozcon Air Solutions, we’re not just installers - we’re specialists in helping Sydney homeowners and businesses find the most efficient, future-ready air conditioning systems for their spaces.

If you need expert advice, high-quality products, and seamless installation, you can count on us. With years of experience across both residential and commercial projects, we understand what it takes to get the job done right. 

We’re here to help, from selecting the best system for your needs to providing ongoing support after installation.

Contact Ozcon Air Solutions today on 1300 341 694 or request a free quote.