Temperzone 14.9 kW ducted system
$10,000–$17,000
estimated installed price
Cooling
14.9 kW
1.5 stars
Heating
14.9 kW
1 stars
Indoor noise
–
dB(A) sound power
Running cost
$1,610
a year, average zone, at 33c/kWh
Short answer
The Temperzone 14.9 kW ducted system (OSA 171RLSFH / ISD 171LYX) is a 14.9 kW reverse cycle ducted rated 1.5 stars for cooling and 1 stars for heating in the average climate zone. Installed, expect $10,000 to $17,000; the label's figures put running costs near $1,610 a year in an average-zone home.
Prices are estimates, not quotes (how we estimate them). Rebate rules checked September 2026.
Compare 3 quotes for my houseFull specifications
- Brand
- Temperzone
- Model numbers
- OSA 171RLSFH / ISD 171LYX
- Type
- Ducted, reverse cycle (heats and cools)
- Cooling capacity
- 14.9 kW
- Cooling power input
- 4.673 kW
- Heating capacity
- 14.9 kW
- Heating power input
- 4.54 kW
- Heating output at 2°C outside
- 13.15 kW
- Annual efficiency, cooling (AEER)
- 3.17
- Annual efficiency, heating (ACOP)
- 3.25
- Indoor sound power
- –
- Outdoor sound power
- –
- Refrigerant
- R32
- Power supply
- Single-phase
- Demand response capable
- No
- Country of manufacture
- Australia, New Zealand
- Energy Rating registration
- AAC8617
- Registration valid until
- 2030-02-25
Star ratings and running cost by climate
The Zoned Energy Rating Label rates each unit for three climates. Annual energy is the label's estimate for typical use in that zone; the cost applies 33c/kWh, around the 2026–27 default electricity offer. Use the running cost calculator for your own hours and tariff.
| Climate zone | Cooling stars | Heating stars | Energy a year | Cost a year |
|---|---|---|---|---|
| HotBrisbane, Darwin | 1.5 stars | 1 stars | 6,307 kWh 5826 cooling, 481 heating | $2,082 |
| AverageSydney, Adelaide, Perth | 1.5 stars | 1 stars | 4,880 kWh 1985 cooling, 2895 heating | $1,610 |
| ColdCanberra, Hobart, Melbourne | 1.5 stars | 1 stars | 8,519 kWh 1316 cooling, 7203 heating | $2,811 |
How it compares with other 14 to 18 kW units
- Cooling stars (average zone): 1.5 against a median of 2.5 across 152 14 to 18 kW ducted units, better than 1% of them.
- Estimated installed price for this size: $10,000 to $17,000. Brand and install difficulty move it within that band.
See the quietest and most efficient rankings.
Alternatives at 14 to 18 kW from other brands
Rinnai Ducted 14.5 kW ducted system
DONSR14Z72/ DINLR14Z72
4 stars cooling · – dB(A)
Rinnai Ducted 17 kW ducted system
DONSR17Z72/DINLR17Z72
4 stars cooling · – dB(A)
ActronAir 16.6 kW ducted system
LRC-170CS / LRE-170CS
3.5 stars cooling · – dB(A)
ActronAir Aspire 17 kW ducted system
LRC-170DS / LRE-170DS
3.5 stars cooling · – dB(A)
Carrier 17 kW ducted system
38QSV170N8/42QSV170N8S
3.5 stars cooling · – dB(A)
Kaden 17 kW ducted system
KDI-17.0
3.5 stars cooling · – dB(A)
FAQ
Temperzone OSA 171RLSFH / ISD 171LYX: common questions
How much does the Temperzone 14.9 kW ducted system cost installed?
Typically $10,000 to $17,000 supplied and installed in 2026 for a standard job at this size. Longer pipe runs, a new circuit, a second storey or removing an old unit add to it. Get up to three local quotes for your actual install.
How much does the Temperzone 14.9 kW ducted system cost to run?
Using the energy label's annual figures at 33c/kWh: about $2,082 a year in a hot zone, $1,610 in an average zone and $2,811 in a cold zone. The label assumes typical use; yours will differ with hours, set temperature and insulation.
Where is the Temperzone OSA 171RLSFH / ISD 171LYX made?
The Energy Rating register lists the country of manufacture as Australia, New Zealand.
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