Name: Westinghouse WSD73HWB-I/WSD73HWA-E
Brand: Westinghouse
SKU: AAC7554

Climate zone

Electricity pricec/kWh

Energy rating (cooling): 4; Heating: 2.5
Annual electricity use: 3,063 kWh; 352 cooling + 2,711 heating
Estimated running cost: $1,011 / year; $84 / month · $10,108 over 10 years
Capacity: 7.3 kW cooling; 8.3 kW heating

2% less electricity than the median of 203 comparable 7 kW reverse cycle split system registrations (3,143 kWh a year) in the cold zone. Uses less than 65% of them.

Across all 3,611 air conditioner registrations sold in Australia, it uses less than 61% (this compares very different sizes, so the cohort figure above is the useful one).

coolingheatingClick a zone to use it across the page.

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 WSD73HWB-I running cost by climate zone

Climate zone	kWh / year	Per month	Per year	5 years	10 years
Cold zone (Canberra, Hobart, Ballarat, alpine areas)	3,063	$84	$1,011	$5,054	$10,108
Mixed zone (Sydney, Melbourne, Adelaide, Perth)	1,563	$43	$516	$2,579	$5,158
Hot zone (Brisbane, Darwin, Cairns, Townsville)	1,808	$50	$597	$2,983	$5,966

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 7.3 kW, at least 3% lower annual kWh in the cold zone.

Model	Cooling	Heating	Stars	kWh / yr	Est. cost / yr	Uses less than
Panasonic U-71PZ3R5/S-6071PT3E6.8 kW heating6.8 kW cooling2,584 kWh/yr	6.8 kW	6.8 kW	3	2,584	$853	100% of similar
Panasonic U-71PZ4R5 / S-6071PT3E6.8 kW heating6.8 kW cooling2,606 kWh/yr	6.8 kW	6.8 kW	3	2,606	$860	99% of similar
Solar Acdc DGWA5-ACDCBLW-24KR27 kW heating6.5 kW cooling2,612 kWh/yr	6.5 kW	7 kW	5	2,612	$862	99% of similar
Daikin RZAV71CV1 / FCTA71AVMA8 kW heating7.1 kW cooling2,676 kWh/yr	7.1 kW	8 kW	0.5	2,676	$883	97% of similar
Midea UCMI70OB/CASMI70IB7.7 kW heating7 kW cooling2,745 kWh/yr	7 kW	7.7 kW	3	2,745	$906	96% of similar

Heat pumps similar to the Westinghouse WSD73HWB-I

Technically comparable registrations: same configuration and type, capacity within 12%.

Model	Cooling	Heating	Stars	kWh / yr	Est. cost / yr	Uses less than
Spt AW073C-1 / AW073E8.1 kW heating7.3 kW cooling3,037 kWh/yr	7.3 kW	8.1 kW	4	3,037	$1,002	70% of similar
Braemar TCHV07T1S/TSHV07T1S7.3 kW heating7.2 kW cooling2,833 kWh/yr	7.2 kW	7.3 kW	3.5	2,833	$935	92% of similar
Bonaire STH072S1AE/STH072S1AI7.3 kW heating7.2 kW cooling2,833 kWh/yr	7.2 kW	7.3 kW	3.5	2,833	$935	92% of similar
Hyundai HYSSSAC72TD7.3 kW heating7.2 kW cooling2,833 kWh/yr	7.2 kW	7.3 kW	3.5	2,833	$935	92% of similar
TCL TAC-24CHSD/TPH21IH7.3 kW heating7.2 kW cooling2,833 kWh/yr	7.2 kW	7.3 kW	3.5	2,833	$935	92% of similar
Hyundai HYSSSAC72TB7.3 kW heating7.2 kW cooling2,833 kWh/yr	7.2 kW	7.3 kW	3.5	2,833	$935	92% of similar
TCL TAC-24CHSD/VEIH7.3 kW heating7.2 kW cooling2,833 kWh/yr	7.2 kW	7.3 kW	3.5	2,833	$935	92% of similar
Braemar TCHV70T1S/TSHV70T1S7.2 kW heating7.2 kW cooling2,905 kWh/yr	7.2 kW	7.2 kW	3.5	2,905	$959	89% of similar

Compare WSD73HWB-I/WSD73HWA-E with another model

Westinghouse WSD73HWB-I specifications

Type: Reverse cycle
Configuration: Split system
Air distribution: Non-ducted
Indoor unit: Wall hung
Rated cooling capacity (35 °C): 7.30 kW
Cooling power input: 1.97 kW
Rated heating capacity (7 °C): 8.30 kW
Heating power input: 2.06 kW
EER, full load (tested): 3.77
COP, full load (tested): 3.94
Rated AEER: 3.70
Rated ACOP: 4.03
Standby power (PIA): 1.2 W
Compressor: Variable speed, Inverter
Refrigerant: R32
Power supply: Single phase
Indoor sound power: 58.1 dB(A)
Outdoor sound power: 66.1 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 WSD73HWB-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	TCSPF	HSPF
Coldcommercial	commercial	–	–	696	837	7.64	4.39
Coldresidential	residential	4.0	2.5	352	2,711	5.77	4.00
Mixedcommercial	commercial	–	–	923	429	6.80	4.87
Mixedresidential	residential	3.5	3.0	565	998	5.43	4.53
Hotcommercial	commercial	–	–	2,165	85	6.33	5.28
Hotresidential	residential	4.0	3.5	1,672	136	5.71	5.25

Part-load test points (23 values)

c__t1_min_cap_power_rated: 630 W
h__h1_min_cap_power_rated: 423 W
h__h2_ext_cap_power_rated: 3070 W
c__t1_half_cap_power_rated: 675 W
c__t1_have_min_cap_results: Yes
h__h1_half_cap_power_rated: 716 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: 2300 W
h__h2_ext_cap_heat_cap_rated: 8400 W
h__h1_half_cap_heat_cap_rated: 3850 W
h__h2_is_capable_extended_load: Yes
c__low_temp_min_cap_power_rated: 536 W
c__t1_min_cap_cooling_cap_rated: 3312 W
c__low_temp_half_cap_power_rated: 620 W
c__t1_half_cap_cooling_cap_rated: 3500 W
c__low_temp_have_half_cap_results: Yes
c__low_temp_min_cap_cooling_cap_rated: 3800 W
c__low_temp_half_cap_cooling_cap_rated: 4190 W

Other model numbers on registration AAC7554

Registered together and sharing the same test results. Usually variants of the same unit.

New Zealand E3 registration details

Registration number: AAC7554
GEMS registration id: 154749
Status: approved, available (self-reported)
Registration expires: 5 June 2028
Registered for sale in: Australia, New Zealand
Family: WSD73HWA-E/WSD73HWA-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 9

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.