Australia · costs in AUD
Reverse cycle window / wall air conditioner
Westinghouse WWH39HWA Air Conditioner
Westinghouse WWH39HWA is a 3.9 kW reverse cycle window / wall air conditioner registered under Australia’s Energy Rating (GEMS) scheme (registration AAC8411).
- Energy rating (cooling)
- 1.5
- Heating: 1
- Annual electricity use
- 1,267 kWh
- 496 cooling + 771 heating
- Estimated running cost
- $405 / year
- $34 / month · $4,054 over 10 years
- Capacity
- 3.9 kW cooling
- 3.6 kW heating
2% more electricity than the median of 16 comparable 3.5 kW reverse cycle window / wall registrations (1,243 kWh a year) in the mixed zone. Uses less than 0% of them.
Across all 3,680 air conditioner registrations sold in Australia, it uses less than 69% (this compares very different sizes, so the cohort figure above is the useful one).
Annual kWh is the government label figure for a residential user in the mixed zone (Richmond NSW climate: Sydney, Melbourne, Adelaide, Perth). Mixed climate zone shown by default (Sydney, Melbourne, Adelaide, Perth); switch to cold or hot. Cost = kWh × 32c/kWh in AUD; change the price above to your tariff.
Westinghouse WWH39HWA running cost by climate zone
| Climate zone | kWh / year | Per year | 10 years |
|---|---|---|---|
| Cold zone | 2,324 | $744 | $7,437 |
| Mixed zone | 1,267 | $405 | $4,054 |
| Hot zone | 1,579 | $505 | $5,053 |
At 32c/kWh. Formula: cost = annual kWh × price. The kWh figure is the label’s residential estimate for that zone; commercial-profile figures are in the specifications.
Air conditioners that use less electricity
Same configuration and type, cooling capacity within 12% of 3.9 kW, at least 3% lower annual kWh in the mixed zone.
| Model | Stars | Est. cost / yr | Compare |
|---|---|---|---|
| Midea MWFI36H3.5 kW heating3.6 kW cooling1,002 kWh/yr | 2.5 | $321 |
Air conditioners similar to the Westinghouse WWH39HWA
Technically comparable registrations: same configuration and type, capacity within 12%.
| Model | Stars | Est. cost / yr | Compare |
|---|---|---|---|
| TECO TWW40HFWDG3.6 kW heating3.9 kW cooling1,267 kWh/yr | 1.5 | $405 | |
| Gree GJH12AG-K6NRNB3A3.6 kW heating3.9 kW cooling1,267 kWh/yr | 1.5 | $405 | |
| Gree GJH12AG-K6NRND6A3.6 kW heating3.9 kW cooling1,267 kWh/yr | 1.5 | $405 | |
| Kaden KW123.6 kW heating3.9 kW cooling1,267 kWh/yr | 1.5 | $405 | |
| Midea MWFF39H3.5 kW heating3.9 kW cooling1,230 kWh/yr | 2 | $394 | |
| Heller HWA13R3.6 kW heating4.1 kW cooling1,235 kWh/yr | 1.5 | $395 | |
| Midea MWFI36H3.5 kW heating3.6 kW cooling1,002 kWh/yr | 2.5 | $321 |
Other Westinghouse models of similar capacity
| Model | Stars | Est. cost / yr | Compare |
|---|---|---|---|
| Westinghouse WWH39HWC3.5 kW heating3.9 kW cooling1,230 kWh/yr | 2 | $394 |
Compare WWH39HWA with another model
Westinghouse WWH39HWA specifications
- Type
- Reverse cycle
- Configuration
- Window / wall
- Air distribution
- Non-ducted
- Indoor unit
- –
- Rated cooling capacity (35 °C)
- 3.90 kW
- Cooling power input
- 1.18 kW
- Rated heating capacity (7 °C)
- 3.60 kW
- Heating power input
- 1.06 kW
- EER, full load (tested)
- 3.29
- COP, full load (tested)
- 3.46
- Rated AEER
- 3.28
- Rated ACOP
- 3.37
- Standby power (PIA)
- 2.2 W
- Compressor
- Fixed speed
- Refrigerant
- R32
- Power supply
- Single phase
- Indoor sound power
- 60.6 dB(A)
- Outdoor sound power
- 69.1 dB(A)
- Demand response (AS/NZS 4755)
- No
- Dimensions (W×H×D)
- 660 × 428 × 700 mm
- Country of manufacture
- China
Dimensions are not collected for registrations under the 2019 Determination, so they are shown only where the source has them.
Westinghouse WWH39HWA zoned energy rating figures
As published for each climate zone. Residential figures drive the star ratings; commercial figures assume a commercial usage pattern.
| Zone | Profile | Cooling stars | Heating stars | Cooling kWh | Heating kWh |
|---|---|---|---|---|---|
| Coldcommercial | commercial | – | – | 760 | 635 |
| Coldresidential | residential | 1.5 | 0.5 | 328 | 1,996 |
| Mixedcommercial | commercial | – | – | 936 | 335 |
| Mixedresidential | residential | 1.5 | 1.0 | 496 | 771 |
| Hotcommercial | commercial | – | – | 2,022 | 70 |
| Hotresidential | residential | 1.5 | 1.0 | 1,467 | 112 |
Part-load test points (6 values)
- h__h2_full_cap_power_rated
- 910 W
- h__h3_have_full_cap_results
- No
- h__h2_full_cap_heat_cap_rated
- 2300 W
- c__low_temp_full_cap_power_rated
- 1090 W
- c__low_temp_have_full_cap_results
- Yes
- c__low_temp_full_cap_cooling_cap_rated
- 4250 W
Other model numbers on registration AAC8411
Registered together and sharing the same test results. Usually variants of the same unit.
Australian GEMS registration details
- Registration number
- AAC8411
- GEMS registration id
- 164107
- Status
- approved, available (self-reported)
- Registration expires
- 26 August 2029
- Registered for sale in
- Australia, New Zealand
- Family
- WH39
- Regulatory standard
- [SEER Non Multi-Split <=65kW] GEMS (Air Conditioners up to 65kW) Determination 2019
- Test standard
- AS/NZS 3823.1.1:2012
- MEPS
- 2019
- Product class
- Class 5
Source: Australian Government Energy Rating (GEMS) registration data, DCCEEW via data.gov.au (CC BY 3.0 AU). Dataset published 25 September 2026; last checked 26 September 2026. How the derived figures are calculated.