Westinghouse 9.1 kW split system
$3,400–$4,800
estimated installed price
Cooling
9.1 kW
4 stars
Heating
10.4 kW
2 stars
Indoor noise
61.7
dB(A) sound power, quieter than 71% of its size
Running cost
$714
a year, average zone, at 33c/kWh
Short answer
The Westinghouse 9.1 kW split system (HSV307HWAE/HSV307HWAI) is a 9.1 kW reverse cycle wall split rated 4 stars for cooling and 2 stars for heating in the average climate zone. Installed, expect $3,400 to $4,800; the label's figures put running costs near $714 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
- Westinghouse
- Model numbers
- HSV307HWAE/HSV307HWAI, WSD91HWA-E/WSD91HWA-I, WSD91HWB-I/WSD91HWA-E
- Type
- Wall split, reverse cycle (heats and cools)
- Cooling capacity
- 9.1 kW
- Cooling power input
- 2.38 kW
- Heating capacity
- 10.4 kW
- Heating power input
- 3.07 kW
- Annual efficiency, cooling (AEER)
- 3.82
- Annual efficiency, heating (ACOP)
- 3.38
- Indoor sound power
- 61.7 dB(A)
- Outdoor sound power
- 68.5 dB(A)
- Refrigerant
- R32
- Power supply
- Single-phase
- Demand response capable
- Yes
- Country of manufacture
- China
- Energy Rating registration
- AAC7558
- Registration valid until
- 2028-06-07
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 | 2,171 kWh 1984 cooling, 187 heating | $717 |
| AverageSydney, Adelaide, Perth | 4 stars | 2 stars | 2,164 kWh 658 cooling, 1506 heating | $714 |
| ColdCanberra, Hobart, Melbourne | 4.5 stars | 1.5 stars | 4,785 kWh 420 cooling, 4365 heating | $1,579 |
How it compares with other 9 kW and up units
- Cooling stars (average zone): 4 against a median of 3 across 105 9 kW and up wall split units, better than 90% of them.
- Indoor sound power: 61.7 dB(A) against a median of 64.8 dB(A), quieter than 71%.
- Estimated installed price for this size: $3,400 to $4,800. Brand and install difficulty move it within that band.
See the quietest and most efficient rankings.
Alternatives at 9 kW and up from other brands
ActronAir Serene 9 kW split system
WRC-090DS / WRE-090DS
4 stars cooling · 64.8 dB(A)
Midea EOS 9 kW split system
MFEP90VB-W/MFEP90VB-N
4 stars cooling · 64.8 dB(A)
Carrier 9 kW split system
38QRF090N8/42QRF090N8
4 stars cooling · 65.2 dB(A)
Kaden 9 kW split system
KSI-9.0
4 stars cooling · 65.2 dB(A)
Midea Venus 9 kW split system
MFAG90VB-W/MFAG90VB-N
4 stars cooling · 65.2 dB(A)
Rinnai TX Series 9 kW split system
HONRTX90/HINRTX90
4 stars cooling · 65.2 dB(A)
FAQ
Westinghouse HSV307HWAE/HSV307HWAI: common questions
How much does the Westinghouse 9.1 kW split system cost installed?
Typically $3,400 to $4,800 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 Westinghouse 9.1 kW split system cost to run?
Using the energy label's annual figures at 33c/kWh: about $717 a year in a hot zone, $714 in an average zone and $1,579 in a cold zone. The label assumes typical use; yours will differ with hours, set temperature and insulation.
Where is the Westinghouse HSV307HWAE/HSV307HWAI made?
The Energy Rating register lists the country of manufacture as China.
Is the Westinghouse 9.1 kW split system quiet?
Its registered indoor sound power is 61.7 dB(A), against a median of 64.8 dB(A) for 9 kW and up wall split units, so it's quieter than about 71% of them. Brochures quote a lower sound pressure figure on the lowest fan speed; the register measures every model the same way.
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