What Is Ducted Air Conditioning? How It Works & Its Benefits


Ducted air conditioning is a type of centralised cooling system that is commonly used in commercial buildings and large modern homes.

It consists of an outdoor unit that pumps refrigerant to an indoor unit which is usually located in the ceiling or under the floor. This indoor unit then connects to vents located in each room through a series of ducts.

This duct system distributes cool air throughout the house.

Ducted air conditioning systems are more expensive than other types of cooling systems, but they offer a number of advantages.

Let’s take a closer look at how ducted air conditioning works and some of the benefits it can provide.

How Ducted Air Conditioning Works

As we mentioned, ducted air conditioners have an outdoor unit and an indoor unit. However, the indoor unit is usually hidden in the ceiling with only a number of vents visible in the walls or ceiling.

The outdoor unit contains the compressor, condenser, and expansion valve. The compressor pumps refrigerant through the system.

The condenser removes heat from the refrigerant and releases it into the outside air. The expansion valve regulates the flow of refrigerant into the evaporator coil.

The evaporator coil is located in the indoor unit. When the refrigerant passes through the coil, it absorbs heat from the surrounding air. This cooled air is then distributed throughout the house via the duct system.

The cooled air continues to circulate until the desired temperature is reached. Then, the system cycles off until the temperature increases again and cooling is required.

Benefits of Ducted Air Conditioning Systems

There are several benefits that ducted air conditioning systems offer over other types of cooling systems, such as split systems and portable air conditioners. Some of these benefits include:

  • Energy efficiency: Ducted systems are more energy-efficient than running multiple split systems to provide the same capacity of cooling. This is due to only one indoor unit instead of multiple indoor units. They are also more efficient than portable units because they don’t lose any cooled air through open windows or doors.
  • Quiet operation: Ducted systems are designed for quiet operation. You won’t even know they’re running most of the time, which is great for sleeping or barking dogs.
  • Temperature control: With a ducted system, you can control the airflow in each individual room. This means that you can keep different areas of your house at different temperatures based on your needs
  • Aesthetic appeal: Ducted systems are hidden away in your ceiling, so they don’t detract from your home’s aesthetic appeal like split systems and portable units do.


Ducted air conditioning systems offer many advantages over other types of cooling systems, including energy efficiency, quiet operation, and temperature control.

If you’re looking for an invisible way to keep your home cool this summer, ducted air conditioning is definitely worth considering!