8.0 kW split systems
159
models on the register
Short answer
159 8.0 kW split systems are registered for sale in Australia in 2026, from 7.6 to 8.6 kW. Supplied and installed, most land between $3,000 to $4,300; up to three licensed local installers will quote your actual job.
Prices are estimates, not quotes (how we estimate them). Rebate rules checked September 2026.
Compare 3 quotes for my houseAn 8 kW split covers a standard insulated space of up to about 67 m², or about 56 m² with big west-facing glass. It is the unit for a large open-plan living area, a high-ceiling room or a space that takes the full afternoon sun.
The register lists 159 models in this class, from 7.6 to 8.6 kW, across 25 brands. Not every brand makes one: some jump from 7.1 kW straight to 8.5 or 9 kW. The tables below list them all. Before you buy, check that one big wall unit is the right answer for the space.
At a glance
- Models159from 25 brands
- Installed, estimate$3,000–$4,300
- Quietest indoorsBonaire CRC691118252 dB(A), 8.2 kW
- Most efficient (average zone)AUX LER3DI4 cooling stars, 8.2 kW
- Reverse cycle93%heat and cool
- R32 refrigerant99%the current low-GWP standard
8.0 kW
159 models · installed $3,000–$4,300
| Brand | Model (outdoor / indoor) | Type | Cool kW | Heat kW | Cool stars | Heat stars | Indoor dB | Installed, estimate | Quote |
|---|---|---|---|---|---|---|---|---|---|
| Midea | MFEP80VA-W/MFEP80VA-N | Wall split | 8 | 9 | 4★ | 2.5★ | 59.5 | $3,000–$4,300 | Get quotes |
| AUX | ASW-H80A4/LER3DI | Wall split | 8.2 | 9.1 | 4★ | 2.5★ | 61.6 | $3,000–$4,300 | Get quotes |
| Braemar | WCHV85D1T/WSHV85D1T | Wall split | 8.5 | 9 | 4★ | 2.5★ | 64.6 | $3,000–$4,300 | Get quotes |
| Gree | GWH28AGEXH-K6DNA1A/O / GWH28AGEXH-K6DNA1A/I +2 variants with the same ratings | Wall split | 8.5 | 9 | 4★ | 2.5★ | 64.6 | $3,000–$4,300 | Get quotes |
Every model on the Energy Rating register marked available in Australia. Stars are the zoned label for the average climate zone (average zone); indoor noise is the registered sound power level, measured the same way for every model. Installed prices are estimated 2026 supply-and-install ranges, not quotes (how we estimate them); your installer confirms the number. Browse and filter everything in the full catalogue.
Is an 8 kW split system the right choice for a big room?
Sometimes. Past about 60 m² of open plan, one wall unit starts losing to two smaller heads or a ducted system, because a single outlet can't throw air evenly into the far corners. A long L-shaped kitchen and family room is the classic case. A big, fairly square room with a clear throw from the wall is where an 8 kW works well.
| Option | Installed, typical | Suits |
|---|---|---|
| One 8 kW wall split | $3,000 to $4,300 | A big, fairly square room with a clear throw |
| One 9 kW-plus wall split | $3,400 to $4,800 | High ceilings or heavy west sun |
| Two-head multi-split | $4,500 to $7,500 | Long or L-shaped spaces, one outdoor unit |
| Ducted, under 10 kW | $6,500 to $10,500 | When you want other rooms done as well |
Our multi-split cost guide and split vs ducted guide go further. Or have the installers price two options side by side.
What to check on an 8 kW split
- Electrical. Expect a dedicated circuit. One model in this class needs three-phase power, so check before you fall for it.
- Outdoor noise. The median outdoor unit at this size registers 67.2 dB(A). Put it where it won't sit under a bedroom window.
- Stars. The median reverse cycle 8 kW rates 3 cooling stars in the average zone and the best rate 4. Twenty-one models share that top rating, eleven of them Gree and seven Kogan. In a cold climate, 121 of the 147 rated models share the top heating score of 2 stars, so heating stars won't separate them.
- Capacity. The class covers 7.8, 8.0, 8.2 and 8.5 kW units. An 8.5 kW covers about 4 m² more than an 8.0.
How much does an 8 kW split system cost installed?
Usually about $3,000 to $4,300 supplied and installed in 2026 for an 8 kW unit, and $3,400 to $4,800 for 9 kW and up, on a standard single-storey job. Mitsubishi Electric, Gree and Kogan have the most models at this size; Daikin sells its large wall units as the XL range. Check the size calculator first, then get up to three local quotes, and ask at least one installer to price the two-head option too.
FAQ
8.0 kW split systems: common questions
What size room will an 8 kW air conditioner cool?
Up to about 67 m² in a standard insulated room, about 56 m² with big west-facing glass, and about 48 m² with west glass and poor insulation. Raked ceilings cut those areas by roughly a sixth.
Is an 8 kW split system too big for a normal lounge?
For a closed lounge under about 40 m², yes. It will cool the room in minutes, switch off, and leave it clammy. A 5 kW is the better fit there, and it costs less to buy and run. Not sure? Get up to three local quotes and let the installers measure it.
Do 8 kW split systems use more power than two smaller ones?
Running flat out, the total is roughly similar for the same total capacity. Two smaller units can win when you only need to cool one end of the space. The star ratings on each unit tell you how efficiently each one does it.
How much does a 8.0 kW split system cost installed?
Typically $3,000 to $4,300 supplied and installed in 2026, depending on size and the job. 8.0 kW: $3,000 to $4,300. Pipe runs, a new circuit or a second storey add to it. Get up to three local quotes for your actual job.
Which is the quietest 8.0 kW split systems?
On the registered indoor sound level, the Bonaire CRC6911182 (8.2 kW) is the quietest at 52 dB(A). Compare within the same size: bigger units are louder. See the quietest split systems ranking.
Which is the most energy efficient?
For the average climate zone, the AUX LER3DI (8.2 kW) has the highest cooling rating here at 4 stars. Star ratings on the zoned label run to 10, and a star is worth more in a hot zone than a mild one. For cold-climate heating, the ActronAir HRE-080DS leads at 2 stars.
What size split system do I need?
Roughly 2.5 kW for a bedroom, 3.5 kW for a large bedroom or small living room, and 5 to 7.1 kW for open-plan living. West glass and poor insulation push it up. Use the size calculator for your room.
Get quotes for your air con
Free and takes about two minutes. Check your rebate, then up to three licensed local installers quote the job.
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