The Five Most Energy Efficient Split System Air Conditioners

Australia is famous for its diverse climates, from the tropics to the bush, and red-dirt deserts. However, the hot weather can sneak up on you, and the winters can get unexpectedly cold! We see long days of burning heat, sweltering humidity (as we have recently experienced), and with winter approaching, freezing mornings. The cold chill can even make you question whether you want to go to work in the morning! This can all get very frustrating without proper climate control in your home. 

Simply put, air conditioners are a must for Aussie households. The problem is that electricity bills are expected to rise in the coming months due to soaring coal prices in the global market. 

So, how do you stay comfortable without the high costs? The solution is simple: find the most efficient split system air conditioner for your home. 

Here are five of your best options:


Daikin has been a trusted name in air conditioners in Australia for many years now. One of its latest lines, ALIRA, is a favourite among Australian households for its style and efficiency. 

The ALIRA is capable of both heating and cooling modes, and it also operates quietly to ensure utmost comfort in your living space.

But what makes the ALIRA unique is its set of human-centric features that help you save on energy costs without compromising your comfort and convenience. 

For instance, this air conditioner has a deodorising air purification system to clean air and kill bacteria. Such technology is essential to avoid the spread of illness. 

It can also sense when a room has been unoccupied for 20 minutes and activates its power-saving mode right away. Just imagine how much money you will save without constantly turning your air conditioner on and off. 

The ALIRA also has other smart features that make it an excellent option if you are looking for the most efficient split system.

The Fujitsu Lifestyle Range

Offering some of the best air conditioners in Australia, Fujitsu introduced a new line of split-system air conditioning products. The line was called the Fujitsu Lifestyle Range, where you can choose from 2.5kW to 9.4kW. 

This range of split air conditioning systems is designed for comfort and budget. It’s fully equipped with smart operating features including timers and human sensors. This helps ensure that it can save energy when the room is vacant. 

The Fujitsu Lifestyle Range also operates on super quiet mode and has a five-year warranty to guarantee that you can use it for a long time. If you are interest in a Fujitsu model, we list pricing and further information on our webpage.


Samsung’s WindFree Cooling split system air conditioner has become a favourite among Australian households for its power-packed features. 

What makes it popular is the 23,000 micro air holes that can quietly disperse air so that you don’t feel any unnecessary chill on your skin. 

This makes the Samsung WindFree split system one of the best in the market when it comes to comfort.

When operating on Fast Cooling mode, this air conditioning unit can consume 77% less energy. As a result, it is an excellent candidate if you are looking for the most efficient split system air conditioner in Australia. You can learn about pricing and specs here.

LG High-Efficiency Reverse Cycle Split System

The LG High-Efficiency Reverse Cycle Split System air conditioner never fails to impress! Its efficiency allows for both in cooling and heating your home while keeping your electricity bills low.

Known for its 5-star heating Energy Star rating, this air conditioning unit has a built-in Wi-Fi smart control. It allows you to control your air conditioner even when you are not at home. 

One of the A/C model’s best features is the ability to let you see your current energy usage on your LCD panel. This will help you will know if you need to reduce your energy consumption or not.

So, if you are on the hunt for the most efficient split system, this is an excellent option to consider, which you can find here.


Capable of cooling and heating, the Panasonic ECONAVI Reverse Cycle Inverter air conditioner is known for its energy efficiency, thanks to the brand’s signature ECONAVI system. This air conditioning unit is also specifically designed for the harsh Australian weather. This makes it an excellent option for your household.

The Panasonic ECONAVI air conditioner also features super-high fan speed to ensure fast cooling, especially on those hot summer days. If you are interested, check out our range here.

Finding the most efficient split system air conditioner

Now that you know the most energy-efficient air conditioners, here are some tips on how you can choose the most efficient split system unitSome of these tips we have taken from our split-systems webpage so pay it a visit!

Think about power capacity.

Split air conditioning units come in different power capacities measured in kilowatts (kW). This means the bigger the space you need to cool, the higher your kilowatt requirement. 

As a general rule, a 2.0kW or 4.0kW split air conditioning system can cool down rooms that measure up to 40 square metres.

Rooms measuring more than 40 square metres would require air conditioners of 5.0kw or higher for the most efficient cooling. 

Choosing the right power capacity is crucial to buying an air conditioner. The wrong product for a room can affect its efficiency and lead to higher electricity bills.

Think about size and shape.

Before shopping for the most efficient split system air conditioner, you need to plan where you are putting the unit first. 

Most split system air conditioners are wall-mounted, so you need to find the best spot for it in your living space. 

You also need to think about the outdoor unit that came with the air conditioner. You can achieve efficiency by positioning the unit in a well-ventilated area. Of course, you need to put it somewhere where the noise cannot bother you.

Think about your location.

Australia is divided into different climate zones depending on its heat index. For instance, Brisbane is in the hot zone, Sydney, Adelaide, and Perth are in the average zone. Canberra and Melbourne are in the cold zone. 

So, if you live in the hot zone, you need to buy a more powerful air conditioning unit that can get you through those hot days. 

But if you live in the cold zone, you can go with a less powerful unit that can cool your home without the need to spend a lot on electricity. However, the winters will demand more heating from your unit, but this is unlikely to match the summer energy requirements!

Think about ongoing costs.

When buying an air conditioning unit, most homeowners would go for the cheaper option thinking that it would help them save money. But if you are going to be smart, you need to think about ongoing costs. 

Some air conditioning units may require you to invest more. However, they can also help you save a lot of money when you consider the energy you will reduce daily. 

So, before you decide on the cheaper air conditioning unit, make sure that you think of how much you will be spending in the long run. 

To get a rough estimate on how much you’re going to spend on energy on your unit every year. Add the blue and red kWh figures in your zone based on the climate zone map and multiply that number by your electricity tariff.

Think about the warranty.

No matter what your budget is for your air conditioning unit, you need a good warranty period to make sure that you’re getting the most out of your investment. 

Some of the best air conditioner brands offer a five-year warranty on parts and labour. This means that you won’t need to worry about spending on repairs if you encounter some problems with your air conditioner.

If you’re choosing between two air conditioners, and one offers a three-year warranty while the other gives you five years, go for the one with the longer warranty period even if you need to spend a bit more. 

This will help you ensure that you’ll be getting premium service if you require repairs or replacement of parts later.

Of course, it wouldn’t hurt to check on bonus features that will get you more value for your investment. 

Depending on your personal preferences, you can go with air conditioner units that have smartphone control capabilities. In effect, you have control of your unit even when you’re away to ensure that you stay energy efficient. 

It’s also wiser to invest in an air conditioner unit with human sensor capabilities. Therefore, you can cut down on energy costs without having to switch your unit on and off in every room.

The bottom line

Choosing the most efficient split system air conditioner involves a lot of planning and research. 

Remember that cost-efficiency is a long-term achievement. This means a cheap air conditioner does not matter if you are spending a lot more on energy consumption. 

When you invest in the best one for your needs, you are sure to enjoy your unit for many years and save a lot on your monthly bills. However, choosing can be a difficult task! If you ever need help making your decision, feel free to contact our professional team and we will be able to consult with our expansive knowledge! Contact us today via our website or alternatively, call us on 1300 262 436.