Climate zone

Electricity pricec/kWh

Energy rating (cooling): 3.5; Heating: 2.5
Annual electricity use: 802 kWh; 267 cooling + 535 heating
Estimated running cost: $257 / year; $21 / month · $2,566 over 10 years
Capacity: 3.4 kW cooling; 4 kW heating

13% more electricity than the median of 196 comparable 3.5 kW reverse cycle split system registrations (709 kWh a year) in the mixed zone. Uses less than 23% 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).

coolingheatingClick a zone to use it across the page.

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.

LG WS12TWU running cost by climate zone

Climate zone	kWh / year	Per month	Per year	5 years	10 years
Cold zone (Canberra, Hobart, Ballarat, alpine areas)	1,632	$44	$522	$2,611	$5,222
Mixed zone (Sydney, Melbourne, Adelaide, Perth)	802	$21	$257	$1,283	$2,566
Hot zone (Brisbane, Darwin, Cairns, Townsville)	854	$23	$273	$1,366	$2,733

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 3.4 kW, at least 3% lower annual kWh in the mixed zone.

Model	Cooling	Heating	Stars	kWh / yr	Est. cost / yr	Uses less than
Midea MFEP35VA-W/MFEP35VA-N3.6 kW heating3.5 kW cooling590 kWh/yr	3.5 kW	3.6 kW	5.5	590	$189	100% of similar
Daikin RXM35AVMA / FTXM35AVMA3.7 kW heating3.5 kW cooling595 kWh/yr	3.5 kW	3.7 kW	5	595	$190	99% of similar
Midea MFCA35VA-W/MFCA35VA-N3.6 kW heating3.5 kW cooling597 kWh/yr	3.5 kW	3.6 kW	5.5	597	$191	99% of similar
Actron Air WRC-035CS / WRE-035CS3.7 kW heating3.5 kW cooling610 kWh/yr	3.5 kW	3.7 kW	5	610	$195	97% of similar
Comfee CASG-XG35/CASN-XG353.8 kW heating3.5 kW cooling610 kWh/yr	3.5 kW	3.8 kW	5	610	$195	97% of similar

Air conditioners similar to the LG WS12TWU

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

Model	Cooling	Heating	Stars	kWh / yr	Est. cost / yr	Uses less than
Mitsubishi Electric MUZ-GS35VFD2/MSZ-GS35VFD3.7 kW heating3.4 kW cooling751 kWh/yr	3.4 kW	3.7 kW	3	751	$240	37% of similar
Fujitsu AOTH12KNCA/ASTH12KNCA4 kW heating3.4 kW cooling791 kWh/yr	3.4 kW	4 kW	3.5	791	$253	25% of similar
Mitsubishi Electric MUZ-GS35VFD/MSZ-GS35VFD23.7 kW heating3.4 kW cooling751 kWh/yr	3.4 kW	3.7 kW	3	751	$240	37% of similar
Samsung Electronics AR12AXHQAWKXSA/AR12AXHQAWKNSA4 kW heating3.5 kW cooling738 kWh/yr	3.5 kW	4 kW	4.5	738	$236	43% of similar
Braemar WCHV35D1T/WSHV35D1T3.7 kW heating3.5 kW cooling733 kWh/yr	3.5 kW	3.7 kW	3.5	733	$235	45% of similar
Samsung Electronics AR40H12C1AMX / AR40H12C1AMN4 kW heating3.5 kW cooling712 kWh/yr	3.5 kW	4 kW	4.5	712	$228	48% of similar
Daikin RXM35AVMA / FTXM35AVMA3.7 kW heating3.5 kW cooling595 kWh/yr	3.5 kW	3.7 kW	5	595	$190	99% of similar
Midea MFEP35VA-W/MFEP35VA-N3.6 kW heating3.5 kW cooling590 kWh/yr	3.5 kW	3.6 kW	5.5	590	$189	100% of similar

Compare WS12TWU / WS12TWN with another model

LG WS12TWU specifications

Type: Reverse cycle
Configuration: Split system
Air distribution: Non-ducted
Indoor unit: Wall hung
Rated cooling capacity (35 °C): 3.40 kW
Cooling power input: 0.90 kW
Rated heating capacity (7 °C): 4.00 kW
Heating power input: 0.99 kW
EER, full load (tested): 3.95
COP, full load (tested): 4.19
Rated AEER: 3.77
Rated ACOP: 4.01
Standby power (PIA): 2.0 W
Compressor: Variable speed, Inverter
Refrigerant: R32
Power supply: Single phase
Indoor sound power: 60.2 dB(A)
Outdoor sound power: 58.3 dB(A)
Demand response (AS/NZS 4755): Yes (mode 1 on off, mode 2 50 percent, mode 3 75 percent)
Dimensions (W×H×D): 837 × 308 × 189 mm
Country of manufacture: Thailand

Dimensions are not collected for registrations under the 2019 Determination, so they are shown only where the source has them.

LG WS12TWU 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	–	–	286	466	8.58	3.82
Coldresidential	residential	4.0	2.0	169	1,463	5.51	3.58
Mixedcommercial	commercial	–	–	403	240	7.20	4.25
Mixedresidential	residential	3.5	2.5	267	535	5.28	4.11
Hotcommercial	commercial	–	–	963	51	6.60	4.50
Hotresidential	residential	4.0	3.0	774	80	5.72	4.50

Part-load test points (23 values)

c__t1_min_cap_power_rated: 267 W
h__h2_ext_cap_power_rated: 1450 W
c__t1_half_cap_power_rated: 370 W
c__t1_have_min_cap_results: Yes
h__h1_half_cap_power_rated: 409 W
h__h1_have_min_cap_results: No
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__h2_ext_cap_heat_cap_rated: 3650 W
h__h1_half_cap_heat_cap_rated: 2000 W
h__h2_is_capable_extended_load: Yes
c__low_temp_min_cap_power_rated: 197 W
c__t1_min_cap_cooling_cap_rated: 1240 W
c__low_temp_full_cap_power_rated: 818.0300000000001 W
c__low_temp_half_cap_power_rated: 278 W
c__t1_half_cap_cooling_cap_rated: 1700 W
c__low_temp_have_half_cap_results: Yes
c__low_temp_min_cap_cooling_cap_rated: 1300 W
c__low_temp_full_cap_cooling_cap_rated: 3661.7999999999997 W
c__low_temp_half_cap_cooling_cap_rated: 1819 W

Australian GEMS registration details

Registration number: AAC8307
GEMS registration id: 162528
Status: approved, available (self-reported)
Registration expires: 20 June 2029
Registered for sale in: Australia, 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 8

Source: Australian Government Energy Rating (GEMS) registration data, DCCEEW via data.gov.au (CC BY 3.0 AU). Dataset published 19 September 2026; last checked 20 September 2026. How the derived figures are calculated.