New Zealand · costs in NZD
Cooling only window / wall air conditioner
Westinghouse WWH28CWC Heat Pump
Westinghouse WWH28CWC is a 2.8 kW cooling only window / wall heat pump registered for sale in New Zealand under the trans-Tasman E3 energy rating scheme (registration AAC10186).
- Energy rating (cooling)
- 2
- Annual electricity use
- 221 kWh
- Estimated running cost
- $73 / year
- $6 / month · $729 over 10 years
- Capacity
- 2.8 kW cooling
3% more electricity than the median of 9 comparable 2.5 kW cooling only window / wall registrations (215 kWh a year) in the cold zone. Uses less than 11% of them.
Across all 3,612 air conditioner registrations sold in Australia, it uses less than 98% (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 cold zone (Canberra climate: Canberra, Hobart, Ballarat, alpine areas). All of New Zealand is the cold zone on the Zoned Energy Rating Label. Cost = kWh × 33c/kWh in NZD; change the price above to your tariff.
Westinghouse WWH28CWC running cost by climate zone
| Climate zone | kWh / year | Per year | 10 years |
|---|---|---|---|
| Cold zone | 221 | $73 | $729 |
| Mixed zone | 337 | $111 | $1,112 |
| Hot zone | 997 | $329 | $3,290 |
At 33c/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.
Heat pumps that use less electricity
Same configuration and type, cooling capacity within 12% of 2.8 kW, at least 3% lower annual kWh in the cold zone.
| Model | Stars | Est. cost / yr | Compare |
|---|---|---|---|
| Gree GJC09AJ-K6DRNG1B2.5 kW cooling180 kWh/yr | 2 | $59 | |
| Gree GJC09AJ-K6DRNG1A2.5 kW cooling183 kWh/yr | 2 | $60 | |
| TECO TVS26CVUVAH2.6 kW cooling186 kWh/yr | 2 | $61 | |
| TECO TVS26CVWUAH2.6 kW cooling186 kWh/yr | 2 | $61 |
Heat pumps similar to the Westinghouse WWH28CWC
Technically comparable registrations: same configuration and type, capacity within 12%.
| Model | Stars | Est. cost / yr | Compare |
|---|---|---|---|
| Kelvinator KWH27CRF2.8 kW cooling215 kWh/yr | 2 | $71 | |
| Kelvinator WH272.8 kW cooling215 kWh/yr | 2 | $71 | |
| Gree GJC09AK-K6NRNG2A2.8 kW cooling215 kWh/yr | 2 | $71 | |
| TECO TWW27CFWDG2.8 kW cooling215 kWh/yr | 2 | $71 | |
| Gree GJC09AK-K6NRNR1A2.8 kW cooling215 kWh/yr | 2 | $71 | |
| TECO TWW27CFAT2.7 kW cooling225 kWh/yr | 1.5 | $74 |
Other Westinghouse models of similar capacity
| Model | Stars | Est. cost / yr | Compare |
|---|---|---|---|
| Westinghouse WWH27CWA2.8 kW cooling215 kWh/yr | 2 | $71 |
Compare WWH28CWC with another model
Westinghouse WWH28CWC specifications
- Type
- Cooling only
- Configuration
- Window / wall
- Air distribution
- Non-ducted
- Indoor unit
- –
- Rated cooling capacity (35 °C)
- 2.80 kW
- Cooling power input
- 0.84 kW
- Rated heating capacity (7 °C)
- –
- Heating power input
- –
- EER, full load (tested)
- 3.28
- COP, full load (tested)
- –
- Rated AEER
- 3.32
- Rated ACOP
- –
- Standby power (PIA)
- 0.7 W
- Compressor
- Fixed speed
- Refrigerant
- R32
- Power supply
- Single phase
- Indoor sound power
- 56.1 dB(A)
- Outdoor sound power
- 64.2 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.
Westinghouse WWH28CWC 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 | – | – | 494 | – |
| Coldresidential | residential | 2.0 | – | 221 | – |
| Mixedcommercial | commercial | – | – | 619 | – |
| Mixedresidential | residential | 1.5 | – | 337 | – |
| Hotcommercial | commercial | – | – | 1,356 | – |
| Hotresidential | residential | 2.0 | – | 997 | – |
Part-load test points (3 values)
- c__low_temp_full_cap_power_rated
- 750 W
- c__low_temp_have_full_cap_results
- Yes
- c__low_temp_full_cap_cooling_cap_rated
- 3100 W
New Zealand E3 registration details
- Registration number
- AAC10186
- GEMS registration id
- 179859
- Status
- approved, available (self-reported)
- Registration expires
- 26 May 2031
- Registered for sale in
- Australia, Fiji, New Zealand
- 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: E3 programme registration data (EECA, New Zealand) (trans-Tasman E3 registration data published by DCCEEW on data.gov.au, CC BY 3.0 AU). Dataset published 25 September 2026; last checked 26 September 2026. How the derived figures are calculated.