New Zealand · costs in NZD
Reverse cycle split system air conditioner, wall hung
Westinghouse WSD36HWB-I/WSD36HWA-E Heat Pump
Westinghouse WSD36HWB-I/WSD36HWA-E is a 3.6 kW reverse cycle split system heat pump registered for sale in New Zealand under the trans-Tasman E3 energy rating scheme (registration AAC7559).
- Energy rating (cooling)
- 5.5
- Heating: 3
- Annual electricity use
- 1,411 kWh
- 134 cooling + 1,277 heating
- Estimated running cost
- $466 / year
- $39 / month · $4,656 over 10 years
- Capacity
- 3.6 kW cooling
- 4.4 kW heating
1% more electricity than the median of 187 comparable 3.5 kW reverse cycle split system registrations (1,395 kWh a year) in the cold zone. Uses less than 48% of them.
Across all 3,612 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 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 WSD36HWB-I running cost by climate zone
| Climate zone | kWh / year | Per year | 10 years |
|---|---|---|---|
| Cold zone | 1,411 | $466 | $4,656 |
| Mixed zone | 701 | $231 | $2,313 |
| Hot zone | 679 | $224 | $2,241 |
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 3.6 kW, at least 3% lower annual kWh in the cold zone.
| Model | Stars | Est. cost / yr | Compare |
|---|---|---|---|
| Midea MFCA35VA-W/MFCA35VA-N3.6 kW heating3.5 kW cooling1,144 kWh/yr | 5.5 | $378 | |
| Daikin RXM35AVMA / FTXM35AVMA3.7 kW heating3.5 kW cooling1,146 kWh/yr | 5.5 | $378 | |
| Midea MFEP35VA-W/MFEP35VA-N3.6 kW heating3.5 kW cooling1,183 kWh/yr | 6 | $390 | |
| Daikin RXV35AVMA / FTXV35AVMA3.7 kW heating3.5 kW cooling1,207 kWh/yr | 5 | $398 | |
| Hitachi RAC-VJ35PHAT/RAK-VJ35PHAT3.8 kW heating3.5 kW cooling1,209 kWh/yr | 5 | $399 |
Heat pumps similar to the Westinghouse WSD36HWB-I
Technically comparable registrations: same configuration and type, capacity within 12%.
| Model | Stars | Est. cost / yr | Compare |
|---|---|---|---|
| Toshiba RAV-GM401ATP-A/RAV-GM401KRTP-A4 kW heating3.6 kW cooling1,883 kWh/yr | 3 | $621 | |
| Spt AW036C-1/AW036E3.9 kW heating3.6 kW cooling1,246 kWh/yr | 5.5 | $411 | |
| Kaden KSI124 kW heating3.5 kW cooling1,456 kWh/yr | 5 | $480 | |
| Midea MFCA35VA-W/MFCA35VA-N3.6 kW heating3.5 kW cooling1,144 kWh/yr | 5.5 | $378 | |
| Aux ASW-H36A4/CAR3DI3.8 kW heating3.5 kW cooling1,303 kWh/yr | 5.5 | $430 | |
| TCL TAC-13CHSD/VEIH3.6 kW heating3.5 kW cooling1,287 kWh/yr | 4.5 | $425 | |
| Hyundai HYSSSAC35TC3.6 kW heating3.5 kW cooling1,287 kWh/yr | 4.5 | $425 | |
| Hyundai HYSSSAC35T*3.6 kW heating3.5 kW cooling1,287 kWh/yr | 4.5 | $425 |
Compare WSD36HWB-I/WSD36HWA-E with another model
Westinghouse WSD36HWB-I specifications
- Type
- Reverse cycle
- Configuration
- Split system
- Air distribution
- Non-ducted
- Indoor unit
- Wall hung
- Rated cooling capacity (35 °C)
- 3.60 kW
- Cooling power input
- 0.74 kW
- Rated heating capacity (7 °C)
- 4.40 kW
- Heating power input
- 0.95 kW
- EER, full load (tested)
- 4.81
- COP, full load (tested)
- 4.74
- Rated AEER
- 4.86
- Rated ACOP
- 4.58
- Standby power (PIA)
- 1.4 W
- Compressor
- Variable speed, Inverter
- Refrigerant
- R32
- Power supply
- Single phase
- Indoor sound power
- 51.3 dB(A)
- Outdoor sound power
- 61.2 dB(A)
- Demand response (AS/NZS 4755)
- Yes
- 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 WSD36HWB-I 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 | – | – | 57 | 410 |
| Coldresidential | residential | 5.5 | 3.0 | 134 | 1,277 |
| Mixedcommercial | commercial | – | – | 213 | 219 |
| Mixedresidential | residential | 5.5 | 3.0 | 209 | 492 |
| Hotcommercial | commercial | – | – | 638 | 46 |
| Hotresidential | residential | 6.0 | 3.5 | 607 | 72 |
Part-load test points (23 values)
- c__t1_min_cap_power_rated
- 310 W
- h__h1_min_cap_power_rated
- 305 W
- h__h2_ext_cap_power_rated
- 1750 W
- c__t1_half_cap_power_rated
- 366 W
- c__t1_have_min_cap_results
- Yes
- h__h1_half_cap_power_rated
- 391 W
- h__h1_have_min_cap_results
- Yes
- h__h3_have_ext_cap_results
- No
- h__h2_have_full_cap_results
- No
- h__h2_have_half_cap_results
- No
- h__h3_have_full_cap_results
- No
- h__h3_have_half_cap_results
- No
- h__h1_min_cap_heat_cap_rated
- 1750 W
- h__h2_ext_cap_heat_cap_rated
- 5300 W
- h__h1_half_cap_heat_cap_rated
- 2200 W
- h__h2_is_capable_extended_load
- Yes
- c__low_temp_min_cap_power_rated
- 166 W
- c__t1_min_cap_cooling_cap_rated
- 1419 W
- c__low_temp_half_cap_power_rated
- 235 W
- c__t1_half_cap_cooling_cap_rated
- 1774 W
- c__low_temp_have_half_cap_results
- Yes
- c__low_temp_min_cap_cooling_cap_rated
- 1355 W
- c__low_temp_half_cap_cooling_cap_rated
- 1830 W
Other model numbers on registration AAC7559
Registered together and sharing the same test results. Usually variants of the same unit.
New Zealand E3 registration details
- Registration number
- AAC7559
- GEMS registration id
- 154815
- Status
- approved, available (self-reported)
- Registration expires
- 11 June 2028
- Registered for sale in
- Australia, New Zealand
- Family
- WSD36HWA-E/WSD36HWA-I
- 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 8
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.