Last updated on February 13, 2025

G’day, mates! Brendan here from Coalfields Climate Control in the Hunter Valley of Australia. Let’s talk about a “cool” 🥶 subject – the most energy-efficient split system air conditioners available in the Aussie market.

 

With the temperature rising, having an efficient cooling system at home isn’t just a luxury; it’s an Aussie necessity. But it’s also important to be mindful of our energy consumption as, let’s face it, the prices are heating up. That’s why I’ve put in some hard yakka and have rustled up a list that’s jam-packed with the most energy-efficient split system air conditioners for you – no rip-offs or duds here. 

 

Energy Efficient What Now?

Before I launch into the “cool” stuff, let’s get down to brass tacks and get clear on what I mean by  “most energy-efficient split system air conditioner”. In simple terms, when I talk about an energy-efficient air con, I’m referring to how much cool air the system pumps out per unit of energy it consumes. Basically, how much bang for your buck. So, the most energy-efficient split system air conditioner is one that gives you the most for less, keeping your digs nice and comfy without making your energy bill skyrocket.

 

Star Rated Appeal

It’s written in the stars, or is it really? To ensure you get the most energy-efficient split system air conditioner, it’s worth checking out the stars or the energy standards, aka those bright red star stickers on everything. Let’s delve deeper into energy standards and efficiency in Australia. Every residential split-system air conditioner sold in our fair land has to meet minimum energy performance standards (MEPS). This means you can rest easy knowing that any new model you buy will be reasonably energy-efficient.

 

Manufacturers like our mates at Fujitsu, Mitsubishi, Daikin, and Rinnai register their models with the government Energy Rating system. Each air conditioner then receives a star rating label for cooling and heating. Based on the unit’s test results against the Aussie standard for air conditioners, these star ratings are an easy way to compare models. 

 

Star ratings equate to greater efficiency. The more stars, the less the unit should cost to run, given it’s been installed correctly. So while a one or two-star model can do the job, a five or six-star model (or more) is clearly the better option, even if it might cost a bit more initially. Let’s face it, shelling out a bit more upfront is worth it when you end up with the most energy-efficient split air conditioner. We guarantee it’ll cost you less in the long run. Go for the Southern Cross amount of stars, or more, when you want true blue value. 

 

ZERL

And here’s some cool trivia for you: Since April 2020, new models are coming with a Zoned Energy Rating Label (ZERL). This shows three cooling star ratings and three heating star ratings based on the climate zone where the unit is installed. Because let’s face it, a most energy-efficient split system air conditioner perfect for a Sydney summer might not be the best choice for Darwin’s tropical climate. So these zone ratings help you choose the best model for your local conditions and needs. Heads up; if you’re in Darwin, QLD or Sydney, we also recommend something that can keep the moisture at bay – because no one loves a mouldy couch.

 

Our Choices 

Let’s discuss some contenders in the most energy-efficient split system air conditioner category. The top players in this game are Mitsubishi, Daikin, Fujitsu, and Actron Air. These legends have done their homework and have some top-notch units that provide maximum cooling for minimum power. To save you from spending hours of time digging, I’ve compiled a list of my top recommendations for the most energy-efficient split system air conditioners and even divided them into small, medium, and large unit categories. 

 

Our recommendations are based on Star ratings and the system’s energy efficiency when it’s not in use, i.e., how much juice they suck up while waiting for you to hit the “on” button.

 

Our Top Recommended

The most energy-efficient split system air conditioners are (in no particular order).

 

In the category of small units, good for a bedroom or study, I recommend considering the following models based on their energy efficiency ratings:

 

  • Mitsubishi Heavy Industries SRK20ZSXA-W
  • Actron Air WRE-026CS
  • Teco TWS-TSO26H3DVGA
  • LG WH09SK-18
  • Fujitsu AGTG09KVCA
  • Samsung F-AR09BXEABWK1

 

For medium units suitable for a large bedroom or living room, check out:

  •  Daikin FTXM50UVMA
  •  Fujitsu ASTG18KMTC
  •  Haier AS53DDBHRA / 1U53RAAFRA
  •  Hitachi RAS-S50YHAB
  •  Actron Air WRE-050CS
  •  LG WH18SL-19

 

And if you’re looking to cool large open-plan living areas, have a look at:

 

  •  Haier AS71FEBHRA / 1U71SABFRA
  •  LG WH21SL-18
  •  Mitsubishi Heavy Industries DXK21ZRA-W and SRK63ZRA-W
  •  Actron Air WRE-072CS
  •  LG WH24SL-18

 

Brand Appeal

If you want to combine my chock-a-block guide full of info with your own research, I’d recommend taking a gander at brands such as Haier, Daikin, and Actron Air for the most energy-efficient split system air conditioners. All of them are leading the way with tech that keeps your place liveable without costing you a fortune.

 

What about the Koalas?

We love the bush, and let’s face it, our Aussie animals are one of a kind, so what about air-cons and the environment? There’s a bit of talk that air conditioners aren’t environmentally friendly. While they use electricity and contain refrigerant gases that contribute to global warming, a quality modern air conditioner is a highly energy-efficient form of cooling and heating. To make yours especially bush-friendly and save yourself some dollars, it’s worth insulating your home, using the air conditioner only when necessary, and running it on solar power.

 

Even the most energy-efficient split system air conditioner can end up costing you big bucks if you use it like a drongo. 

 

Top Notch Energy Efficient Tips

Get the temperature right: Don’t set your air con to arctic temperatures, a comfy 24 degrees is just right. If it’s a bit chilly sometimes, chuck on some Uggs and a Flanno, and you’ll be right, mate. 

 

Use timers:

Your air conditioner likely has a timer function. Don’t be a galah, just use it. Don’t have it running when you’ve popped down to the pub for a cold one with your mates.

 

Regular Maintenance:

Keep your air con in top shape to ensure it runs at its best. Your best bet is to get a specialised tradie to come out once every so often and give it the once over. 

 

Insulation:

Proper insulation keeps the cold air in and the hot air out, so your unit doesn’t have to work overtime. Like your nana, get a door sausage if you’ve got drafty doors and windows; seal up those cracks. 

 

The most energy-efficient split system air conditioner is more than just cooling; it’s longevity. A good air conditioner should last at least six years, often over a decade. Most brands offer five-year warranties, while others like Hitachi offer six years and Teco seven years. You’re always covered by the Australian Consumer Law- make sure you suss out your warranty options before buying. It can seem like a snooze-fest, but it could save you from getting ripped off if you accidentally bag a lemon. 

 

Government Rebates in NSW, Australia

Now let’s dive into a topic that’s bound to put a smile on your dial – government rebates for energy-efficient split system air conditioners in New South Wales (NSW).

 

Energy Efficiency Programs and Rebates

In NSW, the government offers several programs to encourage households to adopt energy-efficient appliances, including split system air conditioners. These rebates can significantly reduce your upfront costs and help you save on your energy bills in the long run.

Energy Savings Scheme (ESS)

The NSW Energy Savings Scheme provides financial incentives to households and businesses for installing energy-efficient appliances. When you purchase a high-efficiency split system air conditioner, you may be eligible for rebates or discounts through participating retailers and installers.

Small Business Energy Saver Program

Although primarily aimed at small businesses, households can also benefit from understanding similar energy-saving strategies. This program offers rebates to small businesses to upgrade to more energy-efficient equipment, including air conditioners.

Solar Bonus Scheme

While not directly related to air conditioners, the Solar Bonus Scheme allows you to generate and use renewable energy to power your air conditioning system, further reducing your energy costs.

How to Apply for Rebates

Applying for these rebates is typically straightforward. Here are some general steps to guide you through the process:

Check Eligibility:

Ensure that your new split system air conditioner meets the energy efficiency criteria set by the rebate program.
Choose a Participating Retailer or Installer: Purchase your air conditioner from a retailer or installer that participates in the rebate program.

Submit Your Application:

Follow the application instructions provided by the rebate program. This usually involves filling out an online form and submitting proof of purchase and installation.
By taking advantage of these rebates, you can make your home more energy-efficient and save money on your energy bills. For more detailed information on all available rebates and how to apply, visit the NSW Government’s energy-saving website: Energy Saver NSW.

Smart Home Integration

Now, let’s switch gears and talk about the future – smart home integration for your split system air conditioner. With advancements in technology, integrating your air conditioner with your smart home system can enhance convenience, efficiency, and overall comfort.

Advantage Air

Advantage Air is a leader in smart home solutions and a Coalfields Climate control partner, offering innovative products that allow you to control your air conditioning system with ease. Here are some key points on how smart home integration can revolutionize your air conditioning experience:

MyPlace Smart Home System:

The MyPlace system allows you to control your air conditioning, lights, and other home devices from your smartphone or tablet. It’s like having a universal remote for your home, right at your fingertips.

Voice Control:

With the integration of popular voice assistants like Amazon Alexa and Google Assistant, you can control your air conditioner using simple voice commands. Imagine saying, “Hey Google, turn on the air conditioner” – how cool is that?

Energy Efficiency:

Smart home integration can help you optimize energy usage. With features like scheduling and zoning, you can ensure that your air conditioner runs only when and where it’s needed, reducing unnecessary energy consumption.

User-Friendly Interface:

The MyPlace system features a user-friendly interface that makes it easy to set up and control your air conditioner. You can adjust settings, create schedules, and monitor energy usage all from one place.

Remote Access:

Control your air conditioner from anywhere. Whether you’re at work or on holiday, you can ensure your home remains comfortable by adjusting the air conditioner remotely through the MyPlace app.

Integration with Other Smart Devices:

The MyPlace system seamlessly integrates with other smart home devices, allowing you to create a connected home environment. You can link your air conditioner with smart lights, security systems, and more for a fully automated experience.

By integrating your split system air conditioner with a smart home system like MyPlace, you can enjoy greater comfort, convenience, and energy savings. To explore more about how smart home integration can benefit you, visit Advantage Air’s website: Advantage Air.

Conclusion

That’s it, folks; Brendan from Coalfields Climate Control saying hoo roo on my comprehensive guide to the most energy-efficient split system air conditioners. From one digger to another, take my advice and save yourself some dosh by getting one of my true blue top picks above. 

 

Here’s to staying cool and energy-efficient! Until next time.

Posted onJune 13, 2023

Post Written by

Brendan Ward is a senior HVAC+R contractor, renowned in his industry as the go-to person for advice, design and planning of commercial air conditioning installations. Brendan has been a qualified professional in both the residential and industrial air conditioning and refrigeration sector for almost 25 years, and has owned Coalfields Climate Control, a leading air conditioning company in the Hunter Valley for over a decade.

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