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Best Small Split System Air Conditioner 2024

By Victor /

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Living Down Under comes with its perks, but sweltering summers are definitely not one of them. When space is at a premium, staying cool can feel like fitting a whole iceberg in a barbie. But fear not! The world of split system air conditioners has shrunk, offering mighty cooling in miniature packages.

To help you find the perfect pint-sized powerhouse, we’ve compiled a no-nonsense guide to Australia’s smallest split-system air conditioners. Ditch the guesswork and bask in the comfort of informed coolth.

Feature Mitsubishi MSZ-AP Mini-Series Panasonic CU-XE15SKUA Senville 09CD Mini Split
Size (H x W) 250mm x 760mm
Cooling Capacity (kW) 1.5kW or 2.0kW 15kW 9,000 BTU (up to 450 sq ft)
Energy Efficiency Rating 4.5 Stars 3.5 Stars 4 Stars
Noise Level (Indoor Unit) 19-42 dBA 37-45 dBA 25-41 dBA
Price Range (AUD) $800 – $1,200 $1,500 – $2,000 $600 – $900
Ideal for Bedrooms, home offices, small living areas Medium-sized rooms Smaller spaces
Key Features Super-sleek, powerful cooling, quiet operation, reverse cycle Energy-saving ECONAVI sensors, whisper-quiet, reverse cycle Easy DIY installation, smart home compatible (with Sensibo Sky), heats & cools
Additional Notes 16-inch installation kit included

Best Smallest Split System Air Conditioners in Australia

1: The Mitsubishi MSZ-AP Mini-Series – Compact Cool with a Big Punch

This little legend takes the cake for sheer size. At just 250mm high and 760mm wide, the MSZ-AP Mini-Series is practically invisible, making it ideal for squeezing over doorways or nestling above windows. Don’t let its diminutive stature fool you, though. This Mitsubishi marvel packs a 1.5kW or 2.0kW cooling punch, perfectly suited for bedrooms, home offices, or even small living areas.

Key features:

  • Super-sleek and discreet: Won’t clash with your carefully curated Aussie aesthetic.
  • Powerful cooling: Keeps those small spaces refreshingly chilly.
  • Quiet operation: Purrs like a contented koala, not a revving jackhammer. With noise levels as low as 19 dBA and only reaching 42 dBA at full power, you’ll barely notice it’s there.
  • Reverse cycle: Warm you up in the cooler months (because even Oz gets chilly sometimes!).

2: Panasonic CU-XE15SKUA – The All-rounder Ace

For those who need a touch more muscle, the Panasonic CU-XE15SKUA steps up. This champion boasts a 15kW cooling capacity, tackling medium-sized rooms with ease. But it’s not just about brawn; the CU-XE15SKUA is packed with smarts too. Its ECONAVI sensors keep tabs on things, adjusting power output for optimal efficiency and saving you on those pesky bills.

Key features:

  • Larger cooling capacity: Ideal for medium-sized spaces.
  • Energy-saving smarts: Keeps your wallet cool as well as your room.
  • Whisper-quiet operation: Enjoy the peace without sacrificing cool comfort.
  • Heats too: Cosy winters are just a button press away.

3: Senville 09CD Mini Split – The Mighty Multitasker

The Senville 09CD Mini Split is a jack-of-all-trades for compact spaces. This 9,000 BTU unit tackles rooms up to 450 square feet with ease, and it comes with a handy 16-inch installation kit, making DIY a breeze. But the Senville’s true party trick is its smart home compatibility. With a Sensibo Sky controller, you can transform it into a Wi-Fi-controlled wonder, adjusting the temperature from your phone or even with your voice.

Key features:

  • Perfect for smaller spaces: Cools efficiently without taking up too much room.
  • Easy installation: DIY-friendly, even for Aussies with two left thumbs.
  • Smart home compatibility: Control your cool from anywhere with the Sensibo Sky.
  • Heats and cools: Keeps you comfortable year-round.

Model Energy Efficiency Rating Remote Control Functions Timer Functions
Mitsubishi MSZ-AP Mini-Series 4.5 Stars – On/Off – Temperature control – Fan speed control – Airflow direction control – 24-hour on/off timer – Weekly timer
Panasonic CU-XE15SKUA 3.5 Stars – On/Off – Temperature control – Fan speed control – Airflow direction control – ECONAVI mode – 24-hour on/off timer – Weekly timer
Senville 09CD Mini Split 4 Stars – On/Off – Temperature control – Fan speed control – Airflow direction control – Turbo mode – 24-hour on/off timer – Sleep timer

Choosing Your Tiny Titan: It’s All About You

So, which pint-sized powerhouse is right for you? Consider these factors:

  • Room size: Match the BTU capacity to the size of the space you want to cool.
  • Features: Decide if smart controls, heating options, or whisper-quiet operation are important.
  • Budget: Shop around to find the best value for your Aussie dollars.

With the right information and a bit of Aussie know-how, you’ll be conquering the heat in no time. Remember, the smallest things can make the biggest difference, especially when it comes to keeping your cool Down Under.

Bonus Tip: Don’t forget about installation! While some units are DIY-friendly, for others, it’s best to call in the professionals. A qualified installer will ensure your tiny titan is running at peak performance and keeping you cool for summers to come.

We hope this guide has helped you navigate the world of Australia’s smallest split system air conditioners. Now go forth and conquer the heat, Aussie style!

Related reviews:

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Split System vs Ducted Air Conditioning


What is the smallest split system AC?

Mitsubishi MSZ-AP Mini-Series – just 250mm high and 760mm wide!

What is the minimum room size for a mini-split?

Depends on BTU capacity. 9,000 BTU typically covers up to 450 sq ft.

What is the smallest air conditioner for a bedroom?

Consider 1.5kW – 2.0kW options like the Mitsubishi MSZ-AP, ideal for smaller spaces.

Why are mini splits not popular?

Can be more expensive initially than window units, but offer long-term benefits like efficiency and comfort.



Air Conditioning certified specialist in Sydney, Australia. Victor is a highly skilled and certified air conditioning specialist based in Sydney, Australia. With over 15 years of experience in the HVAC industry, John has become an expert in the installation, maintenance, and repair of various air conditioning systems, including split systems, ducted systems, and multi-head units. John began his journey in the HVAC field after completing a comprehensive apprenticeship program and obtaining his trade certificate. He then worked with several reputable air conditioning companies in Sydney, honing his skills and gaining valuable insights into the industry. In 2010, Victor received his Air Conditioning and Refrigeration Council (ARC) certification, further solidifying his status as a trusted professional in the field.