Temperzone ducted
9
models on the register
Short answer
9 Temperzone ducted are registered for sale in Australia in 2026, from 8.5 to 22.5 kW. Supplied and installed, most land between $6,500 to $20,000; 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 houseAt a glance
- Models9
- Installed, estimate$6,500–$20,000
- Most efficient (average zone)Temperzone ISDT 85LY3 cooling stars, 8.5 kW
- Reverse cycle100%heat and cool
- R32 refrigerant100%the current low-GWP standard
Under 10 kW
1 models · installed $6,500–$10,500 · size page
| Model (outdoor / indoor) | Type | Cool kW | Heat kW | Cool stars | Heat stars | Indoor dB | Installed, estimate | Quote |
|---|---|---|---|---|---|---|---|---|
| OSAT 85RLSFH / ISDT 85LY | Ducted | 8.5 | 10 | 3★ | 2★ | – | $6,500–$10,500 | Get quotes |
10 to 14 kW
2 models · installed $8,000–$15,000 · size page
| Model (outdoor / indoor) | Type | Cool kW | Heat kW | Cool stars | Heat stars | Indoor dB | Installed, estimate | Quote |
|---|---|---|---|---|---|---|---|---|
| OSAT 100RLSFH / ISDT 100LY | Ducted | 10 | 11 | 3★ | 2★ | – | $8,000–$15,000 | Get quotes |
| OSAT 130RLSFH / ISDT 130LY | Ducted | 13 | 15.5 | 2.5★ | 2.5★ | – | $8,000–$15,000 | Get quotes |
14 to 18 kW
4 models · installed $10,000–$17,000 · size page
| Model (outdoor / indoor) | Type | Cool kW | Heat kW | Cool stars | Heat stars | Indoor dB | Installed, estimate | Quote |
|---|---|---|---|---|---|---|---|---|
| ISD 171LYX / OSA 171RLTFH | Ducted | 14.5 | 14.9 | 1.5★ | 1★ | – | $10,000–$17,000 | Get quotes |
| OSAT 145RLSFH / ISDT 145LY | Ducted | 14.5 | 17 | 2.5★ | 2★ | – | $10,000–$17,000 | Get quotes |
| OSA 171RLSFH / ISD 171LYX | Ducted | 14.9 | 14.9 | 1.5★ | 1★ | – | $10,000–$17,000 | Get quotes |
| OSAT 160RLSFH / ISDT 160LY | Ducted | 16 | 19 | 2.5★ | 2★ | – | $10,000–$17,000 | Get quotes |
18 kW and up
2 models · installed $12,000–$20,000 · size page
| Model (outdoor / indoor) | Type | Cool kW | Heat kW | Cool stars | Heat stars | Indoor dB | Installed, estimate | Quote |
|---|---|---|---|---|---|---|---|---|
| OSA 211RLTFH / ISD 211LYX | Ducted | 19 | 20.8 | 1.5★ | 1.5★ | – | $12,000–$20,000 | Get quotes |
| ISD 251LYX / OSA 251RLTFH | Ducted | 22.5 | 23.3 | 1.5★ | 1★ | – | $12,000–$20,000 | 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.
FAQ
Temperzone ducted: common questions
How much does a Temperzone ducted cost installed?
Typically $6,500 to $20,000 supplied and installed in 2026, depending on size and the job. Under 10 kW: $6,500 to $10,500; 10 to 14 kW: $8,000 to $15,000; 14 to 18 kW: $10,000 to $17,000; 18 kW and up: $12,000 to $20,000. 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 most energy efficient?
For the average climate zone, the Temperzone ISDT 85LY (8.5 kW) has the highest cooling rating here at 3 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 Temperzone ISDT 130LY leads at 2 stars.
What size ducted system do I need?
Most three-bedroom homes land around 10 to 14 kW and four-bedroom homes 14 to 18 kW, but insulation, ceiling height and zoning change it. Our sizing guide explains how installers work it out.
Brand names and logos are trademarks of their owners, shown to identify the brands we compare. We are independent and not affiliated with any manufacturer.
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.
Compare 3 quotes