Lennox ducted
15
models on the register
Short answer
15 Lennox ducted are registered for sale in Australia in 2026, from 10.3 to 17 kW. Supplied and installed, most land between $8,000 to $17,000; 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
- Models15
- Installed, estimate$8,000–$17,000
- Most efficient (average zone)Lennox TSA036S41-11.5 cooling stars, 10.3 kW
- Reverse cycle0%heat and cool
- R32 refrigerant0%the current low-GWP standard
10 to 14 kW
9 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 |
|---|---|---|---|---|---|---|---|---|
| TSA036S41-1 +2 variants with the same ratings | Ducted, cooling only | 10.3 | – | 1.5★ | – | – | $8,000–$15,000 | Get quotes |
| TSA048S41-1 +2 variants with the same ratings | Ducted, cooling only | 11.4 | – | 1.5★ | – | – | $8,000–$15,000 | Get quotes |
| TSA048S41-3 +2 variants with the same ratings | Ducted, cooling only | 13.4 | – | 1.5★ | – | – | $8,000–$15,000 | Get quotes |
14 to 18 kW
6 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 |
|---|---|---|---|---|---|---|---|---|
| TSA060S41-1 +2 variants with the same ratings | Ducted, cooling only | 14.8 | – | 1.5★ | – | – | $10,000–$17,000 | Get quotes |
| TSA060S41-3 +2 variants with the same ratings | Ducted, cooling only | 17 | – | 1.5★ | – | – | $10,000–$17,000 | 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
Lennox ducted: common questions
How much does a Lennox ducted cost installed?
Typically $8,000 to $17,000 supplied and installed in 2026, depending on size and the job. 10 to 14 kW: $8,000 to $15,000; 14 to 18 kW: $10,000 to $17,000. 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 Lennox TSA036S41-1 (10.3 kW) has the highest cooling rating here at 1.5 stars. Star ratings on the zoned label run to 10, and a star is worth more in a hot zone than a mild one.
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.
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