Australia · costs in AUD
Reverse cycle window / wall air conditioner
Domain WAM-27B Air Conditioner
Domain WAM-27B is a 2.7 kW reverse cycle window / wall air conditioner registered under Australia’s Energy Rating (GEMS) scheme (registration AAC8331).
- Energy rating (cooling)
- 1.5
- Heating: 1
- Annual electricity use
- 812 kWh
- 339 cooling + 473 heating
- Estimated running cost
- $260 / year
- $22 / month · $2,598 over 10 years
- Capacity
- 2.7 kW cooling
- 2.4 kW heating
5% less electricity than the median of 23 comparable 2.5 kW reverse cycle window / wall registrations (852 kWh a year) in the mixed zone. Uses less than 52% of them.
Across all 3,680 air conditioner registrations sold in Australia, it uses less than 82% (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.
Domain WAM-27B running cost by climate zone
| Climate zone | kWh / year | Per year | 10 years |
|---|---|---|---|
| Cold zone | 1,431 | $458 | $4,579 |
| Mixed zone | 812 | $260 | $2,598 |
| Hot zone | 1,070 | $342 | $3,424 |
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 2.7 kW, at least 3% lower annual kWh in the mixed zone.
| Model | Stars | Est. cost / yr | Compare |
|---|---|---|---|
| Kogan KAVWAC26YC2.9 kW heating2.6 kW cooling753 kWh/yr | 2 | $241 | |
| Kogan KAVWAC26Y*2.9 kW heating2.6 kW cooling753 kWh/yr | 2 | $241 |
Air conditioners similar to the Domain WAM-27B
Technically comparable registrations: same configuration and type, capacity within 12%.
| Model | Stars | Est. cost / yr | Compare |
|---|---|---|---|
| Heller HWA272.4 kW heating2.7 kW cooling812 kWh/yr | 1.5 | $260 | |
| Dimplex DCB092.4 kW heating2.7 kW cooling812 kWh/yr | 1.5 | $260 | |
| Bonaire CRC60000272.4 kW heating2.7 kW cooling812 kWh/yr | 1.5 | $260 | |
| Rapta WAC272.4 kW heating2.7 kW cooling812 kWh/yr | 1.5 | $260 | |
| Devanti WAC-09H-WH2.4 kW heating2.7 kW cooling812 kWh/yr | 1.5 | $260 | |
| Kogan KAWDACR27TA2.4 kW heating2.7 kW cooling812 kWh/yr | 1.5 | $260 | |
| Kogan KAWDACR27TD2.4 kW heating2.7 kW cooling812 kWh/yr | 1.5 | $260 | |
| Euromatic EUR-9000WAC22.4 kW heating2.7 kW cooling812 kWh/yr | 1.5 | $260 |
Compare WAM-27B with another model
Domain WAM-27B specifications
- Type
- Reverse cycle
- Configuration
- Window / wall
- Air distribution
- Non-ducted
- Indoor unit
- –
- Rated cooling capacity (35 °C)
- 2.70 kW
- Cooling power input
- 0.82 kW
- Rated heating capacity (7 °C)
- 2.40 kW
- Heating power input
- 0.69 kW
- EER, full load (tested)
- 3.28
- COP, full load (tested)
- 3.41
- Rated AEER
- 3.27
- Rated ACOP
- 3.45
- Standby power (PIA)
- 1.7 W
- Compressor
- Fixed speed
- Refrigerant
- R32
- Power supply
- Single phase
- Indoor sound power
- 52.8 dB(A)
- Outdoor sound power
- 62.8 dB(A)
- Demand response (AS/NZS 4755)
- No
- Country of manufacture
- China
Dimensions are not collected for registrations under the 2019 Determination, so they are shown only where the source has them.
Domain WAM-27B 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 | – | – | 503 | 396 |
| Coldresidential | residential | 1.5 | 1.0 | 224 | 1,207 |
| Mixedcommercial | commercial | – | – | 626 | 212 |
| Mixedresidential | residential | 1.5 | 1.0 | 339 | 473 |
| Hotcommercial | commercial | – | – | 1,361 | 46 |
| Hotresidential | residential | 2.0 | 1.0 | 997 | 73 |
Part-load test points (6 values)
- h__h2_full_cap_power_rated
- 640 W
- h__h3_have_full_cap_results
- No
- h__h2_full_cap_heat_cap_rated
- 1800 W
- c__low_temp_full_cap_power_rated
- 730 W
- c__low_temp_have_full_cap_results
- Yes
- c__low_temp_full_cap_cooling_cap_rated
- 2900 W
Australian GEMS registration details
- Registration number
- AAC8331
- GEMS registration id
- 163003
- Status
- approved, available (self-reported)
- Registration expires
- 3 July 2029
- Registered for sale in
- Australia
- Family
- –
- 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.