Australians love their air conditioning, so much so that the number of installations rose from 330,000 back in 2000 to 1.5 million in 2022. For many homeowners, though, the “ducted vs ductless air conditioning” decision can be the toughest choice when they consider a new installation.
You’ll inevitably need to take various factors into account when you make your decision, including comfort, energy efficiency and cost considerations (installation and running). Both ducted and ductless systems have their strengths (and their drawbacks), but the right air conditioning system ultimately comes down to the layout of your home, your heating and cooling needs and your household budget.
To make the smart choice for your home, understanding the difference between ducted air conditioning and its ductless counterpart is essential. Which is why we’re here!
What is Ducted Air Conditioning?
Ducted air conditioning distributes conditioned air through a network of ducts to the entire home. These ducts typically get installed in the ceiling or walls. You may also hear these systems referred to as central air conditioners.
A ducted system features one central air conditioning unit that is installed either inside the roof or outside the home. This unit produces conditioned air and sends it through ducts to particular rooms of the house to achieve a desired temperature throughout.
What is Ductless Air Conditioning?
Perhaps more commonly known as a split system air conditioner, ductless air conditioning is a flexible and energy-efficient heating and cooling solution that does away with the need for ductwork.
This air conditioning system consists of an outdoor unit connected to an indoor air handling unit via refrigerant tubing. You can also have a multi-head split or ductless system, with the one outdoor unit connected to multiple indoor units. Each indoor unit operates independently, for precise temperature control in different rooms.
Ducted Air Con Pros and Cons
Highly popular among Australian homeowners, ducted air conditioning offers a discreet and effective solution for whole home cooling. You can either set a uniform temperature across multiple rooms of the house, or with zone control, set individual desired temperatures in each room. It makes ducted air conditioning ideal for large homes. However, it does have some potential drawbacks to consider.
Strengths:
- Delivers a comfortable and consistent temperature throughout the home.
- A central air conditioning system is hidden in the ceiling, which keeps everything looking tidy.
- It’s not as noisy as a ductless air conditioner, as the central unit is away from living areas.
- Ducted aircons work well with heat pumps for efficient year-round heating and cooling.
Weaknesses:
- Installation cost is higher due to the need for installing ductwork, especially in older homes.
- Less individual room control compared to ductless systems, unless you have zone control capabilities.
- Ducted systems need consistent duct cleaning to maintain indoor air quality and prevent dust build-up.
For homes with existing ductwork, a ducted air conditioning system is a smart and practical choice. But for those who want precise temperature control, a ductless system is more suitable.
Ductless Air Conditioning Pros and Cons
Ductless air conditioning is a flexible and energy efficient system for delivering heated or cooled air into a room. It’s a great alternative to ducted systems for homes that don’t have existing ductwork. A ductless system boasts the ability to control individual room temperatures, but also has its limitations.
Pros:
- Precise temperature control in different rooms, which reduces wasted energy.
- No need for ductwork means it’s easier and cheaper to install than a ducted air conditioning system.
- Improves indoor air quality by removing dust and allergens that otherwise accumulate in ducts.
- Ductless systems operate quietly, with indoor units that run at a low noise level.
Cons:
- To cool a large home, you need multiple ductless units. This will add to installation costs.
- Indoor units are visible, so are possibly not suitable for all interior designs.
- Requires regular maintenance of filters and indoor units for efficient cooling.
For homes needing a suitable air conditioning system with zoning capabilities, a ductless mini split air conditioning system is a practical option. But for whole home heating and cooling systems, a ducted air conditioner may be more efficient.
Energy Efficiency and Cost
Energy efficiency and installation cost are the key when choosing between ducted vs ductless air conditioning.
Ductless systems are widely considered to be the more energy efficient option of the two. They eliminate the issue of energy loss that ducted systems experience, where leaks and poor insulation can reduce efficiency. They also have individual room control, you only cool the spaces in use, reducing energy waste.
A ducted system can certainly be energy efficient for multiple rooms. But if you don’t have zone control, heating or cooling unused rooms will definitely add to your running costs.
Air Quality and Comfort Considerations
Air quality and comfort are ultimately the key to settling on any ducted vs ductless air conditioning decision.
A ducted air conditioning system provides even temperature control across multiple rooms. But if you don’t keep the ductwork clean, it can circulate dust, allergens and mould throughout the house. This can affect indoor air quality, especially for allergy sufferers.
Ductless air conditioning systems use advanced air filtration in their indoor air handling units, which can improve air quality by reducing airborne particles. They also offer precise temperature control where each indoor unit can maintain a comfortable setting.
Always Use a Licensed Technician for Installation
No matter which side you fall on in the ducted vs ductless air conditioning debate, it is crucial to hire a licensed air con technician for your installation. Here is why:
- The process of installing and charging an air conditioner (supplying the necessary refrigerant gas) requires the expertise of a licensed specialist to guarantee efficient cooling, safety, and longevity.
- They possess the skills and knowledge to correctly install all essential components, preventing refrigerant leaks, system inefficiencies, and electrical hazards.
- For ducted systems, poor ductwork installation can lead to air leaks. This will likely lower your energy efficiency and increase running costs.
- For ductless air conditioning systems, incorrect placement of indoor and outdoor units can compromise air quality and cool air distribution.
- A professional will ensure that your AC meets manufacturer specifications and complies with safety regulations.
By entrusting installation to a licensed air conditioning technician, you’ll enjoy efficient performance, reliable temperature control, and peace of mind.
Ducted vs Ductless Air Conditioning Systems – Which is Best?
Choosing the best air conditioning system for your home depends on many things, including the layout of your home, your budget and cooling needs. Ducted systems provide even temperature control across multiple rooms, making them perfect for larger properties with existing ductwork. They boast a seamless design but also come with a higher installation cost.
On the other hand, ductless systems are more energy efficient. They offer precise temperature control and improve indoor air quality. Ducted/split systems are suitable for homes without ducts or where zoning is a priority.
If whole-home cooling is what you need, a ducted system might be the way to go. But if flexibility and efficient cooling is what you’re looking for, a ductless mini split could be the better choice.
Please note: Thanks for reading our blog “Ducted vs Ductless Air Conditioning – Which is Better?”. This information is provided for advice purposes only. Regulations differ from state to state, so please consult your local authorities or an industry professional before proceeding with any work. See our Terms & Conditions here.