Rinnai Ducted 17 kW ducted system
$10,000–$17,000
estimated installed price
Cooling
17 kW
4 stars
Heating
17.5 kW
2 stars
Indoor noise
–
dB(A) sound power
Running cost
$1,197
a year, average zone, at 33c/kWh
Short answer
The Rinnai Ducted 17 kW ducted system (DONSGHW18Z2/DINLR17Z72) is a 17 kW reverse cycle ducted rated 4 stars for cooling and 2 stars for heating in the average climate zone. Installed, expect $10,000 to $17,000; the label's figures put running costs near $1,197 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
- Rinnai
- Series
- Rinnai Ducted
- Model numbers
- DONSGHW18Z2/DINLR17Z72, DONSR17Z72, DONSR17Z72/DINLR17Z72
- Type
- Ducted, reverse cycle (heats and cools)
- Cooling capacity
- 17 kW
- Cooling power input
- 5.155 kW
- Heating capacity
- 17.5 kW
- Heating power input
- 4.6 kW
- Annual efficiency, cooling (AEER)
- 3.28
- Annual efficiency, heating (ACOP)
- 3.78
- Indoor sound power
- –
- Outdoor sound power
- –
- Refrigerant
- R410A
- Power supply
- Single-phase
- Demand response capable
- Yes
- Country of manufacture
- China
- Energy Rating registration
- AAC6662
- Registration valid until
- 2027-05-08
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 | 4.5 stars | 3 stars | 3,935 kWh 3613 cooling, 322 heating | $1,298 |
| AverageSydney, Adelaide, Perth | 4 stars | 2 stars | 3,627 kWh 1215 cooling, 2412 heating | $1,197 |
| ColdCanberra, Hobart, Melbourne | 4.5 stars | 1.5 stars | 7,751 kWh 759 cooling, 6992 heating | $2,557 |
How it compares with other 14 to 18 kW units
- Cooling stars (average zone): 4 against a median of 2.5 across 152 14 to 18 kW ducted units, better than 97% 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.
Other sizes in the Rinnai Ducted range
Alternatives at 14 to 18 kW from other brands
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)
Kaden 17 kW ducted system
KDI60 / KDI60
3.5 stars cooling · – dB(A)
Midea 17 kW ducted system
DUCMI170IHB/UCMI170OB
3.5 stars cooling · – dB(A)
FAQ
Rinnai DONSGHW18Z2/DINLR17Z72: common questions
How much does the Rinnai Ducted 17 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 Rinnai Ducted 17 kW ducted system cost to run?
Using the energy label's annual figures at 33c/kWh: about $1,298 a year in a hot zone, $1,197 in an average zone and $2,557 in a cold zone. The label assumes typical use; yours will differ with hours, set temperature and insulation.
Where is the Rinnai DONSGHW18Z2/DINLR17Z72 made?
The Energy Rating register lists the country of manufacture as China.
Sources
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