Michael's Mitsubishi Heavy Industries Air Conditioners Review & Verdict
Michael Bloch covers the latest developments in home electrification for SolarQuotes.
While I'm not hands-on familiar with Mitsubishi Heavy Industries air conditioning units, they appear to have a pretty good name in the Australian AC sector. But when push comes to shove, installers seem to prefer Mitsubishi Electric - and there is a difference between the two companies. Mitsubishi Heavy has more of a focus on budget and commercial systems, while Mitsubishi Electric is more about residential applications and features.
Whether you choose one or the other, there's the reassurance Mitsubishi *should* be around for a long time to come; meaning that if something should go wrong it will usually be a case of repair and not replacing an entire system.
Mitsubishi Heavy Industries Air Conditioners: Pros & Cons
- Solid company
- Slightly cheaper than Mitsubishi Electric
- Decent warranty
- Extensive supplier network
- More complex in operation
About Mitsubishi Heavy Industries
The history of Mitsubishi Heavy Industries (MHI) dates back to 1870 when it was originally involved with marine transportation. The company began producing air conditioners in Japan in 1953 and started shipping its first units to Australia in 1975.
After steady growth under the Mitsubishi Heavy Industries banner, local operations were eventually spun off as Mitsubishi Heavy Industries Air-Conditioners Australia (MHIAA ) in 2009, which doesn't roll off the tongue as quite as smoothly.
MHIAA Head Office:
Address: Block E, 391 Park Road, Regents Park, NSW 2143
Telephone: 02 9684 7777
Email address: Online form
Website
Mitsubishi Heavy Industries Air Conditioning Solutions
Split systems
For residential applications, MHIAA offers several wall mounted split system product lines in varying capacities and with Coefficient of Performance (COP) ratings ranging from 3.48 to 5.74:
- Avanti Plus: 2 kW - 6 kW.
Star energy rating (average climate): 4.5 stars cooling, 4 stars heating. Indoor noise: 19 - 48 db(A) - Avanti: 2 kW - 5 kW.
Star energy rating: 3 - 4 stars cooling, 2.5 - 3 stars heating. Indoor noise: 19 - 43 db(A) - Bronte: 6.3 kW - 10 kW.
Star energy rating: 2.5 - 3.5 stars cooling, 1.5 - 3 stars heating. Indoor noise: 24 - 48 db(A) - Ciara: 1.5 kW - 7.1 kW.
Star energy rating: 1.5 - 3 stars cooling, 2.5 - 3 stars heating. Indoor noise: 19 - 49 db(A)
The most popular MHIAA split system product line in Australia appears to be the Avanti, which is suitable for small to medium spaces. Among its features are built-in Wi-Fi and filtering for neutralising allergens, odours, bacteria, viruses and capturing PM2.5 particles. The Avanti has a wide range of timer and scheduling functions.
On the energy efficiency side, the Avanti has fuzzy logic algorithms that determine the operating mode and temperature settings automatically. In economy mode, the unit operates at a slightly reduced capacity.
For larger spaces, the Ciara is probably a better choice, offering airflow of up to 18m in cooling mode with 7.1-9.5 kW models.
As well as wall-mounted units, there's a floor mounted range of split systems; Ciara (2.5 kW - 5 kW) and a bulkhead series, Akari (2.5 kW - 6 kW).
All these split systems are paired up with the outdoor unit, the SCM-ZS-W series, which is available in capacities: of 4.0 kW - 10.0 kW. Up to 5 rooms can be cooled with the more powerful models. The noise level of the outdoor units ranges from 43 - 57 db(A). and R32 refrigerant is used.
Ducted Systems
All MHIAA ducted systems are reverse cycle and are available as medium and/or high static pressure designs.
- FDU Series: Medium/high static pressure, slimline, 7.1 kW - 14 kW, single/three phase.
- FDUA Series: High static pressure. 10.0kW - 23.5kW capacities, single/three phase.
- FDUM Series: Medium static pressure, 5.0kW - 5.6kW capacities, single phase.
- KX1:1 Series: High static pressure, 9.0k W - 28.0 kW capacities, single/three phase.
All ducted systems' outdoor units use R32 refrigerant. Co-efficient of Peformance (COP) ranges from 3.39 - 4.53.
Warranty Information
For residential applications for all of the above series, the product warranty is 5 years on parts and labour.
Had a Mitsubishi Heavy Industries Air-Conditioners Australia installed? Consider leaving a rating and review of the system and installation.
Learn everything you need to know about choosing the best air-conditioner for your house and compare selected brands and models side-by-side in our comprehensive Australian home air-conditioning guide.
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30 December 2025
1 x 8kw, 1 x 7kw and 1 x 2.5kw units.
I still have 4 x 2.5kw Hyundai systems still functioning that are over 20 years old, and 1 that doesnt in a room that is now used for storage, so it wont be replaced.
The Mitsubishi heavy industries units use a lot less power than the units they replaced, and they maintain the temperature of the rooms perfectly.
The two big units cool the main living areas of the house, pull about 4 - 5kw (both of them together) whilst initially cooling the house and once the house is cool, they maintain the temperature easily using anywhere between 2 and 2.5kw of power both of them together) even on 40 degree days. I replaced them in September 2023, cost about $6000
The 2.5kw unit it is hard to tell how much power it uses, it is uses about 1kw on start up, but then once the room is cool the power usage barely ticks up at all, maybe 2-300w above background?. It was installed in march 2025 and cost about $2000.
I am very happy with the new units, they use a lot less power than the old units and maintain temperature of the room far better, no stuffy period before the air con "kicks in again.
Will i replace the remaining Hyundai units with Mitsubishi heavy industries air cons? Yes, but not until they die, the old units still work well enough, and being smaller units, the power saving is not enough to justify the expense on its own.