Best Split System Air Conditioners

Based on 3,558 reviews
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Price
$300 to $4,600
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Indoor Unit Width

Mitsubishi Heavy Industries Bronte Series

Mitsubishi Heavy Industries Bronte Series 🏆 2026

4.7 
Summary
  • Cooling Power6.3 kW to 10 kW
  • Heating Power7.1 kW to 11.2 kW
  • Reverse Cycle Either
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BasilACT7 posts
  Verified

While it lasted, it did a very good job - reasonably quiet and efficient. Able to provide cooling at the 44 degrees my Canberra suburb reached this… Read more

year, and OK with heating down to the -8 degrees we've seen (although it had to turn off for up to perhaps 20% of the time to defrost the outside unit). The unit has weekly timer control as well as daily, but it is clunky and tricky to set, and needs resetting whenever there is a power failure. HOWEVER it failed after 5 years and 10 months with a seized compressor. The repair cost was about the same as buying a new one, and the warranty service was unable to offer any support as it was beyond the 5 year warranty. Using a moderator service did not produce any change, so it was a waste of my time. To me, such a major equipment failure after such a short time is poor, makes the value for money really bad, and not what a reasonable person would expect. These are why I have given it a low rating - essentially, the company is not prepared to stand behind its product once the 5 year warranty has expired, when you are on your own.

Mitsubishi Heavy Industries Air-Conditioners
Mitsubishi Heavy Industries Air-Conditioners    

Hello Basil, We are… Read more

Mitsubishi Heavy Industries Avanti Series

Mitsubishi Heavy Industries Avanti Series 🏆 2026

4.7 
Summary
  • Cooling Power2 kW to 5 kW
  • Heating Power2.7 kW to 5.8 kW
  • Reverse Cycle Either
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NickQLD4 posts
  Verified

Wouldn't buy again due to the service. We have the DXK09ZSA and it started making a clicking noise around 18 months in, only when on Cooling, not any… Read more

other setting.

I went through the warranty and they sent someone out (who used to work for Mitsubishi and has since started up his on aircon repair business) who couldn't see the problem to start, then saw one small bit of mould and said "ah, that'll do it". He did say it was a bit odd that mould is only in the one area (also this machine is regularly cleaned like all our others) and he basically blamed the sparky for not filling in the wall cavity and that's how the moisture/mould is getting in and what has caused a piece to break?

I have never known mould (which every machine accumulates in QLD regardless how much you clean it) to break a piece inside the machine before. So, I had to pay the call out fee. Now for him to replace the part, ANOTHER call out fee would have to be paid and the labour/parts.

Anyway, its left a sour taste in my mouth and won't be purchasing another Mitsubishi aircon unit again.

We purchased our house in 2023 with a Daikin unit in the living area that must have been cleaned for id say 10 years and that works perfectly, even more so when we had it deep cleaned. Disappointed that a unit so new has developed a broken part due to apparently one spot of mould...

Honestly sounded like the guy just wanted money for his newly started business... never again.

Mitsubishi Heavy Industries Air-Conditioners
Mitsubishi Heavy Industries Air-Conditioners    

Hello Nick, We’re… Read more (+2 replies)

Mitsubishi Electric MSZ-AP Series

Mitsubishi Electric MSZ-AP Series

4.7 
Summary
  • Cooling Power2 kW to 9 kW
  • Heating Power2.5 kW to 10.3 kW
  • Reverse Cycle Yes
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$1,099Bing Lee
MohanACT3 posts
  Verified

I would like to give this a 0 rating if possible. I am sweltering in the heat of Melbourne and the cooling option does not work at all! Reading all… Read more

the online manuals suggest I need to set the mode to "snowflake" that I don't even get on my remote. The company that sold this product to me a couple of years ago have not been customer friendly from the day they sold the unit.. I am regretting buying three of these units and wasting my money

  • Cooling Power2 kW to 6 kW
  • Heating Power2.7 kW to 6.8 kW
  • Reverse Cycle Yes
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GusNSW6 posts
  Verified

Did my research and am not disappointed. Quick to cool. A 1-2 hour run at night keeps the room cool all night. Easy to maintain. Older units are running 7 years strong without incident. Show details

  • Cooling Power1.5 kW to 7.1 kW
  • Heating Power2 kW to 8 kW
  • Reverse Cycle Yes
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daz88 posts
 

had ours now 1 year I find it ok to use but its worth but it I wont buy any other brand, nice and cold and heating good also rather this then use our… Read more

ducting heating system where gas cost more now but be buying another one again and I recommend family friends also

Haier 300 Series (Tempo)

Haier 300 Series (Tempo) 🏆 2026

4.9 
Summary
  • Cooling Power2.5 kW to 7 kW
  • Heating Power2.9 kW to 7.5 kW
  • Reverse Cycle Yes
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David KeirQLD
  Fair Incentive Verified

Great features for value for money. Easy install through build process. Show details

Fujitsu Lifestyle

Fujitsu Lifestyle

3.7 
Summary
  • Cooling Power2.1 kW to 9.4 kW
  • Heating Power3.2 kW to 10.3 kW
  • Reverse Cycle Either
MaxQLD3 posts
 

Useless unit, don’t do it Should have gone MHI, noisy, does not cool no mater what any Fujitsu tech might say, 3 k down the bin, will remove and… Read more

place on kerb as that’s all it’s good for to be honest. Cheap and nasty build, cheapest remote, almost reject shop like…very disappointing expensive lesson.

Fujitsu
Fujitsu    

Hi Max, Thanks for your feedback. As you purchased the… Read more

Mitsubishi SRK-ZMA Series

Mitsubishi SRK-ZMA Series

4.6 
Summary
  • Cooling Power2 kW to 7.1 kW
  • Heating Power3 kW to 8 kW
  • Reverse Cycle Yes
Bill M.QLD
 

Short service life – We have the above mentioned aircon system new when house was built, plus a smaller 2.0kw system. The 5kw unit only gets used during summer in the… Read more

lounge room. The unit has now failed with a 6 flash fault, which is either power or PCB board fault. Pretty disappointed as the unit is just over 5 years old. Was really expecting at least a 10 year life from these.

  • Cooling Power2.5 kW to 9 kW
  • Heating Power3.2 kW to 9.5 kW
  • Reverse Cycle Yes
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DJMVIC2 posts
  Fair Incentive Verified

Thhis is an incentivised review, but the 5 stars are genuine. I had this installed to replaced a Hitachi unit which stopped working after 4 years and this works so much better than the other one ever did. Wi-Fi works great too, very easy to set up. Show details

  • Reverse Cycle Yes
Keith Jones
  Verified

VERY QUICK AND PROFESSIONAL ! very impressed with the service provided.

Midea Venus Series

Midea Venus Series

4.8 
Summary
  • Cooling Power2 kW to 8 kW
  • Heating Power2.25 kW to 8.5 kW
  • Reverse Cycle Yes
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leanne h.2 posts
  Verified

The cooling performance is amazing, it manages to keep my large bedroom at an amazing temperature Love the ease of use , and purchase price is… Read more

decent in the current climate of living costs

The system is extremely quiet and has features to use your phone to use

Daikin Cora

Daikin Cora

3.4 
Summary
  • Cooling Power2 kW to 7.1 kW
  • Heating Power2.7 kW to 8 kW
  • Reverse Cycle Either
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TrevorVIC
 

On the 16th of July I purchased a $3400 Daikin Cora 6kw to be installed. The refrigeration engineers did a very neat job installing it (very happy).… Read more

HOWEVER when the power was switched on it instantly fried. The refrigeration engineers apologised and said they'd need to speak to Daikin. They phoned Daikin for a few days but Daikin never returned there call. So I phoned Daikin and got through after a long wait. I have now been given a job number and was told due to the fact of a long wait list, my unit may not be looked at until a long delay (until my job number comes up). A Daikin technician called and told me he has to order the parts. I have talked to the Daikin Technician and he's still waiting for parts. This is a brand new install in the middle of winter. This is one of the biggest mistakes I have ever made. Daikin products are junk and fry instantly one powered. Daikin service is terrible to deal with. There whole service process stinks. If I new what I know now, I would never have bought Daikin. Beware!!!! By a different brand. Look at the Daikin Product review Page, it says it all. Poor product, poor service.

Update, Daikin has fully repaired my unit with all new electronics. I feel I was way too harsh now and I apologise to Daikin. Daikan stood behind their warranty.

Midea Apollo Series

Midea Apollo Series

4.6 
Summary
  • Cooling Power2.5 kW to 9 kW
  • Heating Power3.2 kW to 10 kW
  • Reverse Cycle Yes
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Skye C.VIC4 posts
  Fair Incentive Verified

There’s are efficient and quickly heat and cool our home Show details

  • Cooling Power2.5 kW
  • Heating Power3.2 kW
  • Reverse Cycle No
Warren S.Victoria2 posts
  Verified

Very responsive and good to work with. Prompt and organised. Show details

Kaden KSI Series

Kaden KSI Series

5.0 
Summary
  • Cooling Power2 kW to 8 kW
  • Heating Power2.25 kW to 8.5 kW
  • Reverse Cycle Yes
John H.3 posts
 

Didnt realise the Aussie content until reading doco. Installation was professional and ability to cool above expectations. Very happy with overall cost. Awesome product for these times. Keep up ghe good work. Show details

Kaden KS Series

Kaden KS Series

3.8 
Summary
  • Cooling Power2.6 kW to 8 kW
  • Heating Power2.8 kW to 8.1 kW
  • Reverse Cycle Yes
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Dave Wane5 posts
 

Just my current view of Kaden – I am a licensed installer of split system air conditioners. I have a Refrigeration Handling License. I also own properties in Darwin, and manage… Read more

others. In total, I have responsibility for over 40 split system air conditioners. In recent years (over 5 years) I have been purchasing MHI airconditioners when replacement was necessary. I like MHI. However, unfortunately, at times in Darwin MHI are unavailable. So, so far, I have been buying Kaden from my usual supplier, Actrol. And so far, so good. There is plenty to like about Kaden. Hopefully, Kaden will be a good brand going forward,

Fujitsu Designer

Fujitsu Designer

3.5 
Summary
  • Cooling Power2.5 kW to 5 kW
  • Heating Power3.2 kW to 33 kW
  • Reverse Cycle Yes
$1,159Bing Lee
Le BarqNSW8 posts
 

Good AC but only with a lifespan of 7 years – Upon writing this review, I was surprised to see another user's unit died in 7 years time frame too. Therefore, it's looking that it's a common… Read more

reoccurrence that this designer series doesn't last as one would hope. I bought the unit back in Nov 2015 and officially died on Dec 2022. When the unit was working, it's a nice unit. Cools and heats room quickly and the feature I love the most is the quite mode. Very pleasant when you love sleeping in a quite environment. The only cons I have to say when it's operational is the slider mechanism which takes a long time to open/shut before the air vent can start operating. Over time the slider cogs became more nosier as the years goes by but it didn't bother me that much and I never had any slider issues. Been told and read that this is the unit's Achilles heel in terms of fault. Furthermore, the remote control is quite out dated and very clunky to set simple timer schedules. The menu layout and programs needs to be refreshed when compared to its competitors especially for their asking price range. Would I recommend this AC? Yes, if you love the looks and don't mind replacing it sooner that expected. No for those who wants a reliable unit. I'd recommend just getting the normal looking facia that opens and closes like a generic split unit.

Fujitsu
Fujitsu    

Hi Le Barq, Thank you for taking the time to place your… Read more

Midea EOS Series

Midea EOS Series

4.8 
Summary
  • Cooling Power2.6 kW to 8 kW
  • Heating Power2.7 kW to 9 kW
  • Reverse Cycle Yes
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emily033 posts
  Fair Incentive Verified

Aircon is nice and quiet, looks modern for the room. The unit is very quick to heat and cool the room. Remote is easy to use. Happy with purchase and would recommend to buy to other people. Show details

Fujitsu Classic

Fujitsu Classic

3.3 
Summary
  • Cooling Power2.5 kW to 9.2 kW
  • Heating Power3.4 kW to 10 kW
  • Reverse Cycle Yes
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Roger H.QLD
 

Outstanding Service and Professional – We recently had 2 bedroom Air conditioners repaired by Fujitsu and now perform extremely well. So I would like to say on behalf of my family and… Read more

myself, we would like to give a very big thank you to everyone at Fujitsu for getting our Air-conditioners going again. The service was outstanding and team’s professionalism is above the rest.

Haier Pinnacle Series

Haier Pinnacle Series

4.9 
Summary
  • Cooling Power2.5 kW to 9 kW
  • Heating Power3 kW to 9.5 kW
  • Reverse Cycle Yes
supreet s.5 posts
  Fair Incentive

Good quality product, features and functions are easy to use. The unit copes wells in high demand in Aussi long heat days. Installer explained the optimum way to use the unit on really hot days

Daikin US7

Daikin US7

3.5 
Summary
  • Cooling Power2.5 kW to 5 kW
  • Heating Power3.6 kW to 6.3 kW
  • Reverse Cycle Yes
IrisVIC3 posts
  Fair Incentive

No engineer cand do the service in AU – I had post a bad review 6 month ago, but even Daikin arrange their engineer to do the service, change the case and make sure all the parts had been… Read more

installed back correctly.

But the problem is still on going and become worse.

Now, it makes a CLIK sound when we turn it off. The sound could keep continuing for 2 mins..... Non stop ....and then show up every 1 min till the machine is really closed.

I know that US7 needs longer time to shot down. But with the CLIK sound.....No, I couldnt accept that ......it couldn't be right. There must be something wrong.

If you don't have the really perffectional engineer in AU to do the service, then you might need to ask for the help from Japan. Isn't it?

I believe that Japan's engineer could find out what wrong this this machine.

It might a install problem. Once the machine didn't been installed in correct way, it will make the noise and can't be quiet as the AD told us.

It might be caused by incorrect service. We had been serviced by several people who is not really know about US7. If they don't know, how could they do the service in right way.

Actually we had 2 Daikin split system ... Both are not recommended. In other country, Daikin provide an better service than in AU. No recommend you to buy.

In my country, once your air condition had any strange noise, CLIK sound, humming noise.... Daikin always help to solve the problems. If the problem can't be fixed, they will change a new air condition for you directly.

In AU... I bought this aircon in 2017 and in day one I had told them something wrong with the machine. They sent the engineer to check and also find the humming noise... It's not a normal sound from the aircon. But the engineer still insist ed the machine hasn't any operating issue. The machine is no problem.

In fact, we ask for service to fix many problem every year. Not a big problem, but annoying problems. No one has so many time to handle same problem every year.

Daikin
Daikin    

Hi Iris, we are sorry to hear about your experience. We… Read more

Mitsubishi Electric MFZ-KW-VG Series

Mitsubishi Electric MFZ-KW-VG Series

4.6 
Summary
  • Cooling Power2.5 kW to 6.1 kW
  • Heating Power3.4 kW to 6.5 kW
  • Reverse Cycle Yes
DavidE
  Verified

Very happy with the heating efficiency and quietness of this new Mitsubishi unit. It replaced a floor-mounted gas heater, and I wish I had made the switch earlier! Show details

Midea GAIA Series

Midea GAIA Series

4.6 
Summary
  • Cooling Power2.6 kW to 7 kW
  • Heating Power2.65 kW to 8.05 kW
  • Reverse Cycle Yes
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Matt
  Fair Incentive Verified

I love the quiet effectiveness of our Midea air conditioner. This little unit keeps the study at a comfortable temperature all year round, and we no… Read more

longer have to heat or cool the whole house to do that. It very quickly brings the room temperature up or down, and you can barely hear it. It's been effective through the depths of winter and peaks of summer. The fan is pretty quiet unless you really turn it up. I like the timer feature, but I would love it if you could set an automatic default to switch off after x minutes though, we often leave the house and forget about it.

Midea Xtreme Series

Midea Xtreme Series

4.8 
Summary
  • Cooling Power2 kW to 7.8 kW
  • Heating Power2.25 kW to 8.3 kW
  • Reverse Cycle Yes
EmsQLD9 posts
  Fair Incentive Verified

We chose the Midea air conditioner based on our installer’s recommendation, and it has exceeded our expectations. We’ve been using it for over a year… Read more

and are very satisfied with both its cooling and heating performance. The unit cools rooms quickly and maintains a comfortable temperature consistently, while the energy efficiency has noticeably helped keep our electricity bills reasonable. One of our favourite features is the app which allows us to turn the AC on or off remotely, set timers, and monitor energy usage. Super convenient for daily use. The cleaning function is another highlight. Cleaning the filter ourselves is quick and hassle-free, making maintenance easy. Overall, the design is sleek, the features are practical, and it delivers reliable performance. We’re very happy with this purchase and would highly recommend it.

ALDI Split System Air Conditioners

ALDI Split System Air Conditioners

2.4 
Summary
  • Cooling Power2.3 kW to 5.1 kW
  • Heating Power2.5 kW to 5.1 kW
  • Reverse Cycle Yes
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GordonNSW
 

Don't buy a Stirling Air con – Useless. Complete waste of money. Outside compressor circuit board and fan motor both failed just outside of warranty. I Barely ever used the sir con… Read more

then when I needed it it failed. It will cost more to replace the parts that the air con cost in the first place and the parts are no longer available anyway.

  • Cooling Power2.5 kW to 8 kW
  • Reverse Cycle No
Steven RalphQLD3 posts
  Verified

After 12 years our old Mitsibishi unit was still going but on starting to struggle a bit so we naturally decided to upgrade to a new unit which… Read more

considering the service we got from our old unit we could not go past a new Mitsibishi. The new unit is very quiet and works and looks great.

LG WH Series

LG WH Series

3.4 
Summary
  • Cooling Power2.5 kW to 9.4 kW
  • Heating Power3.2 kW to 10.3 kW
  • Reverse Cycle Yes
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PCDCVIC2 posts
  Verified

All set for a hot summer or the next cold winter – Our kitchen/dining room area has been neglected as far as cooling is concerned, even though this is the main area where family and visitors tend to… Read more

congregate. We do a fair amount of cooking in the kitchen and that naturally increases heat levels during those times.

While we do have air conditioning in a nearby lounge room, the cooling effects from this AC's does not contribute to cooling into kitchen/dining room area.

I really liked the features of this LG unit, the fact that it has a 5 star energy rating and built in WiFi. Compared to the older AC units we have, this one is far more efficient because of the newer heat pump technology it employs. Also the Wifi feature means that we can control the AC when we are out and about via our mobile phones and if needed, we switch it on a half and hour before we get back home.

It has been installed for more than a month now and we've needed it on some days for both cooling and heating, due to the variable spring weather we have in Melbourne. You know what they say, "If you don't like the weather in Melbourne, wait 10 minutes". It has worked flawlessly and quietly in providing the much needed comfort to our kitchen/dining room area.

The only issue we had was with the initial WiFi setup, which was more complex and it took longer than anticipated to connect it up. However there's been no issues with it remaining connected and we can control it via mobile phone or voice command (via Google). Should have listened to the installers who offered to connect it to our WiFi on the day of the install.

Even though the unit is rated at 3.5kw, it saves power by continually adjusting the heating and cooling power requirements via the Smart Inverter. So it only consumes the power it needs for it to reach the temperature that you have set. Unlike older AC's that run on full power continuously until they reach set temperature and then shut off the compressor.

Rinnai G Series

Rinnai G Series

2.2 
Summary
  • Cooling Power2.5 kW to 7 kW
  • Heating Power2.8 kW to 7.5 kW
  • Reverse Cycle Yes
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ehsan vossough3 posts
 

This air conditioner only lasted 2 years, before the blower bearing started to become very noisy. After spending lots of money to fix the issue, we decided to fully replace with Panasonic. Stick with reputable brands. Show details

Rinnai
Rinnai    

Hi Eshan Vossough, Thank you for your review. As a… Read more

Fujitsu Comfort Range

Fujitsu Comfort Range

4.2 
Summary
  • Cooling Power2.5 kW to 9.5 kW
  • Heating Power3.2 kW to 10.3 kW
  • Reverse Cycle Yes
Rusty Lee70 posts
 

Disappointed. Missing basic features – I bought this to replace my bedroom unit which was a 3.5kw Kelvinator which was a bit of a noisy unit although worked well before it died at 10 years… Read more

old. Switching on this Fujitsu unit for the first time. My first impressions were of sheer disappointment regarding the lack of a digital readout on the head unit to tell of what temperature it was set at especially being a bedroom unit and in the dark. To make matters worse the remote has no backlit feature either so you're guessing of what you are doing in the dark and probably losing sleep when you get it wrong. While I might say this unit is quiet and does the job. I wouldn't say I could leave a door open and have it cool a few rooms other than my bedroom or very much thereof something of which my old 3.5 kw unit never had much trouble with doing. Mind you I didn't run it on powerful mode either so I'm yet to try this at a lenghthy period of time. I also do have a 5kw unit in my kitchen which has no problems cooling a few rooms on a hot day and being ice cold directly when needed. It is a Hisense and I bought for much less than this Fujitsu, it does have a digital readout and freezing cold when it needs to be and or hot in winter time and I've been running it non stop now for almost 3 years with no troubles other than to clean it's filters and fan wheel of the mold they collect over time. My Hisense unit also has a backlit remote and has also WiFi capability and has Alexa remote capability. Honestly I wish I had gone with another Hisense but I was advised not to. They have a wider more asthetically pleasing head unit with all the functions you need to be able see it in the dark. Even the remote glows in the dark so you can find it easy and if not control the thing with your phone. Not all things made in PRC are as bad as some people make out they are

Fujitsu
Fujitsu    

Dear Rusty Lee, Thank you for taking the time to share… Read more

Daikin Zena

Daikin Zena

3.8 
Summary
  • Cooling Power2.5 kW to 6 kW
  • Heating Power3.2 kW to 7.2 kW
  • Reverse Cycle Yes
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JaM K.4 posts
  Fair Incentive

We installed the Daikin Inverter Multi Split System with the CTXM25RVMA 2.5kW unit (ZENA) for our two bedrooms, and we love it. It operates very… Read more

quietly and cools and heats the rooms very quickly. The app is easy to use, allowing us to control the system even when we are not at home. The design is stylish, sleek, and slim. We highly recommend it.

A split system air conditioner in a lounge room.

What is split system air conditioning?

A split system air conditioner is split into two parts: a wall-mounted indoor unit in the room you’re cooling, and an outdoor unit that contains the compressor box. Warm air from inside is transferred outside and replaced with refreshingly cool air via a pipe that contains refrigerant gas.

What are the advantages and disadvantages of a split system air conditioner?

There are plenty of benefits, which is probably what helps make split system aircons the most popular type of air conditioner sold in Australia.

We’ve listed some pros and cons of split system air conditioners for you to consider below.

Pros
Tend to be more efficient than the alternative air conditioners.
Quieter than most other air cons.
Tend to be more powerful than other air conditioning systems.
Lower running costs.
Suitable for cooling medium and large rooms (particularly in instances where a portable air conditioner would be insufficient).
Can often cool multiple rooms (though not the whole house as a ducted air conditioner would).
Often have features like inverter technology, air purification and Wi-Fi connectivity.
Cons
Incur extra cost as they need to be installed into your home by a licensed technician (however, they’re cheaper to install than ducted systems).
Because they have to be installed into your home, they may not be suitable for renters.
The outdoor compressor unit can be noisy, particularly if not maintained correctly.

What to consider when choosing a split system air conditioner

Do you need heating too?

Perhaps the most attractive selling point of split AC systems is that many models are also reverse cycle air conditioners. This means that they can heat a room as well as cool it – giving you the ultimate 2-in-1 deal for an air conditioner that’s valid in its cooling and heating abilities all year round.

Size

Check the height, depth and width of your indoor unit and see whether these measurements are suitable for where in your home you want to position the air conditioner. You should also do this for the outdoor unit.

Your room size

The power output you need will largely depend on the size of your room and windows, ceiling height, insulation, how much sunlight the room gets and more. Below is a rough guide for the cooling capacity (in kW) you need for your room size. Keep in mind that the required heating capacity is slightly higher than the required cooling capacity.

Room sizeCapacity
Small (up to 20m²)2 - 2.5kW
Medium (20 - 40m²)2.5 - 5kW
Large (40 - 60m²)4 - 6 kW
Extra large (over 60m²)5 - 9kW

Energy efficiency

Check the energy rating of models you’re comparing; check both the cooling energy rating as well as the heating energy rating if you’re getting a reverse cycle split system air conditioner. The more stars, the better the unit is for the environment and the less it should cost to run.

The Energy Rating Label is regulated by the Australian government, and can help you compare the energy efficiency and running costs of the models you’re comparing.

Two examples of Energy Rating Labels.

Image source: www.energyrating.gov.au

Remember that the biggest expense of an air conditioner is its running costs, so it’s a good idea to opt for an energy efficient model, both for your wallet and for the environment.

Functions

Split system air conditioners often have a range of functions to choose from for different types of heating and cooling. Many will offer different fan speeds, as well as some or all of the following:

  • Sleep Mode: A feature that adjusts the temperature in increments to a level that’s suitable for sleeping, both so that the air conditioner reduces its power and so it's quieter while you’re asleep.
  • Eco Mode: This reduces power consumption, either by reducing the cooling or heating output or by detecting if no one is in the room and then reducing power.
  • Fan only: If you just want a nice breeze, then this option blows air without heating or cooling.

Features:

  • Remote control: This lets you easily control the power, settings and temperature on your air con from the comfort of the couch.
  • On/off timer: This lets you switch off your unit before you arrive home and switch if off at night while you’re asleep to save on electricity costs.
  • Inverter: This energy-saving feature controls the air conditioner’s motor speed, letting the appliance change temperature without turning the motor on and off. This is thought to make your split system AC unit more efficient and more effective at maintaining a constant temperature.
  • Wi-Fi smart control: Wi-Fi connectivity lets you control your air conditioner using your smartphone or smart home system (such as Google Home or Amazon Alexa).
  • Dehumidifying function: A feature that helps regulate the amount of moisture in the air, which is particularly useful if you live in a wetter climate.
  • Evaporative cooler: This blows cool, moist air throughout your home.
  • HEPA filter: If you’ve got allergies, then a HEPA filter can help ease your symptoms by capturing and eliminating bacteria, fungal spores, smoke and dust particules in the air, with some even being able to reduce or eliminate odours.
  • Long reach: Usually only a feature on more powerful air cons, this propels the hot or cool air further, helping heat or cool larger or more open-plan areas.
  • Motion sensor: This detects whether someone is in the room; if no one is detected, the unit will usually switch to an energy-saving mode.

Noise level

While most modern split system air cons are fairly quiet indoors and out, it’s worth checking the noise level of a model before you buy (both on its lowest and highest settings), as a noisy unit can disrupt your activities at home or your sleep.

Reading reviews is a great way to determine the noise level of an air conditioner if you can’t test it out in person. If the noise level in decibels is listed online, then this can also give you a good idea of what to expect. For reference, the noise level of whispering is around 30 decibels, while a normal conversation is around 60 decibels.

Cleaning and maintenance

Cleaning and maintaining your air conditioner is important because it ensures it performs at its best and is as energy efficient as possible. Nor cleaning your air conditioner can lead to a myriad of problems, such as filters becoming clogged with dust and dirt, which can limit airflow and prevent your unit from being able to cool your home.

Some air conditioners have an auto-clean function that cleans dirt and grime from internal components inside their head unit, meaning less cleaning for you to do.

Installation

In addition to the upfront cost of buying the unit, you’ll also have to pay for installation. Split system air conditioner installation costs can range anywhere from $400 to $800 or more.

In Australia, you need a licensed technician to install your air conditioner. They can also help you work out where in the room to position it. Air conditioner installers need either a Full Refrigeration and Air Conditioning (RAC) License or a ‘splits’ license, both of which are issued by the Australian Refrigeration Council.

Most of the time, an air conditioner retailer can organise installation or help you choose a professional installer.

How much does a split system air con cost?

Split system air conditioner prices vary, with more budget models starting at $700 and more premium models costing over $2500.

However, the running costs are perhaps a more important point of consideration. To calculate the running costs of your appliance, check how many kilowatt hours (kWh) it’s estimated to use each year. This information can be found on the air conditioner’s rating sticker.

While more energy efficient models may be more expensive to purchase, you’ll usually find that their lower running costs quickly offset this price difference.

Warranty

Get an air conditioner with a decent warranty - most brands offer at least 5-year warranties. A good warranty may save you money down the track, and is often a testament to the manufacturer’s faith in their units standing the test of time.