A Complete Guide to Ducted Air Conditioning NZ

Ducted air conditioning is the most common type of air conditioning system in New Zealand. It can be installed in new homes and renovations and is simple to operate. Ducted air conditioning NZ systems use a network of ducts to deliver cooled or heated air throughout your home. It has many benefits over the standard split system and deserves to be considered.

How Does Ducted Air Conditioning Work?

Ducted air conditioners have an indoor unit (condenser) and an outdoor unit (evaporator). The condenser is typically located on an external wall of your house, while the evaporator is placed inside the house.

The indoor unit contains the compressor, which compresses refrigerant gas into a high-pressure liquid form. This liquid travels through a network of pipes called ‘fins’, which absorb heat from inside your home as it passes through them on its way to the evaporator. The evaporator then converts this high-pressure liquid back into a gas by absorbing heat from inside your home.

This process causes cool air to flow out through ducting, leading from these units into rooms throughout your home.

Types Of Ducted Air Conditioning

Ducted air conditioning is a popular choice for many homeowners, as it allows for more controlled temperatures than split systems and can be installed in existing homes. There are two main types of ducted air conditioning in NZ:

  1. Centralised systems

These systems have an outdoor unit (usually located near the house) and a separate indoor unit. They can either be split systems or packaged systems. Centralised systems are more expensive than split systems but are more efficient because they use the same refrigerant over and over again instead of constantly being exposed to heat from your home (which is what happens with split systems).

  1. Split-systems

These consist of an outdoor unit and an indoor unit connected by a hose, pipe or conduit. They are cheaper than centralised systems because they don’t require ducting, but they also use more energy because each room needs its own separate fan and compressor unit.

Advantages & Disadvantages Of Ducted Air Conditioning NZ

Ducted air conditioning is a popular option for homes and businesses. It is more energy efficient than split systems, but it also comes with some disadvantages.


Ducted air conditioning can be installed in new or existing homes and offices. The system is designed to cool the entire building and not just one room at a time. This makes it an excellent option for people who live in warmer climates or who want to keep their home cool during hot summers when they are not at home.

Ducted air conditioning can be installed quickly and easily. The installation process includes installing vents in each room to provide fresh air and distribute the cooled air throughout your home or office. In most cases, this will take less than a day to complete.


You have limited control over where your vents are placed, which could make certain cooling rooms difficult or impossible if they’re located in areas that don’t get direct sunlight or have lots of furniture blocking their path. If you need help understanding how ducted air conditioning works, you may end up with vents that need to be fixed or, even worse, no ventilation at all!

How Much Does Ducted Air Conditioning Cost?

Ducted air conditioning systems are a great way to get cool air into your home. They provide more even cooling, which can lead to lower energy bills and fewer problems with humidity. But how much does a ducted air conditioning system cost? The average cost of a ducted air conditioning system is $3,000. This amount includes the labour and materials needed to install the system.

This price will vary depending on several factors, including:

  • The size of your home and the number of bedrooms
  • Whether you need to install new ducts or just install an air conditioner on an existing duct system
  • What kind of ductless system do you want?


Ducted Air Conditioning NZ has grown in popularity over the past few years, and with good reason. These air conditioning units are able to cool your entire house without the need for window units that are both bulky and unattractive. If you’re looking for more information about these systems and how they work, then make sure to check out our full guide above.

Post Author: Randall Callahan