Name: Mitsubishi Heavy Industries DXC21ZTLA-W / DXK21ZTLA-W
Brand: Mitsubishi Heavy Industries
SKU: AAC6374

Climate zone

Electricity pricec/kWh

Energy rating (cooling): 3.5; Heating: 2.5
Annual electricity use: 1,462 kWh; 516 cooling + 946 heating
Estimated running cost: $468 / year; $39 / month · $4,678 over 10 years
Capacity: 6.3 kW cooling; 7.1 kW heating

9% more electricity than the median of 104 comparable 6 kW reverse cycle split system registrations (1,340 kWh a year) in the mixed zone. Uses less than 20% of them.

Across all 3,680 air conditioner registrations sold in Australia, it uses less than 65% (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.

Mitsubishi Heavy Industries DXC21ZTLA-W running cost by climate zone

Climate zone	kWh / year	Per month	Per year	5 years	10 years
Cold zone (Canberra, Hobart, Ballarat, alpine areas)	2,878	$77	$921	$4,605	$9,210
Mixed zone (Sydney, Melbourne, Adelaide, Perth)	1,462	$39	$468	$2,339	$4,678
Hot zone (Brisbane, Darwin, Cairns, Townsville)	1,636	$44	$524	$2,618	$5,235

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

Model	Cooling	Heating	Stars	kWh / yr	Est. cost / yr	Uses less than
Panasonic U-60PZ4R5 / S-6071PU3E6 kW heating6 kW cooling1,092 kWh/yr	6 kW	6 kW	3.5	1,092	$349	99% of similar
Panasonic U-60PZ3R5 / S-6071PU3E6 kW heating6 kW cooling1,101 kWh/yr	6 kW	6 kW	3.5	1,101	$352	98% of similar
Midea MFEZ60VA-W/MFEZ60VA-N6.5 kW heating6 kW cooling1,177 kWh/yr	6 kW	6.5 kW	4.5	1,177	$377	96% of similar
Rinnai HONRPX60/HINRPX60M6.5 kW heating6 kW cooling1,177 kWh/yr	6 kW	6.5 kW	4.5	1,177	$377	96% of similar
Actron Air WRC-060DS / WRE-060DS6.6 kW heating6 kW cooling1,203 kWh/yr	6 kW	6.6 kW	4.5	1,203	$385	94% of similar

Air conditioners similar to the Mitsubishi Heavy Industries DXC21ZTLA-W

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

Model	Cooling	Heating	Stars	kWh / yr	Est. cost / yr	Uses less than
Gree GWH21AGEXF-K6DNA1A/O / GWH21QEXF-K6DNA1A/I7.4 kW heating6.3 kW cooling1,405 kWh/yr	6.3 kW	7.4 kW	3.5	1,405	$450	35% of similar
LG WS24TWU / WS24TWN7.3 kW heating6.3 kW cooling1,655 kWh/yr	6.3 kW	7.3 kW	3.5	1,655	$530	0% of similar
Gree GWH21AGEXF-K6DNA1A/O / GWH21AGEXF-K6DNA1A/I7.4 kW heating6.3 kW cooling1,405 kWh/yr	6.3 kW	7.4 kW	3.5	1,405	$450	35% of similar
Fujitsu AOTG22LVCC/ASTG22LVCC7.2 kW heating6.3 kW cooling1,538 kWh/yr	6.3 kW	7.2 kW	3	1,538	$492	10% of similar
Solar Acdc DGWA1-ACDC-24KR27 kW heating6.4 kW cooling1,439 kWh/yr	6.4 kW	7 kW	3	1,439	$460	24% of similar
Comfee CASG-XG60/CASN-XG606.4 kW heating6.1 kW cooling1,264 kWh/yr	6.1 kW	6.4 kW	4	1,264	$404	86% of similar

Other Mitsubishi Heavy Industries models of similar capacity

Model	Cooling	Heating	Stars	kWh / yr	Est. cost / yr	Uses less than	Compare
Mitsubishi Heavy Industries DXC21ZRA-W / DXK21ZRA-WF17.1 kW heating6.3 kW cooling1,308 kWh/yr	6.3 kW	7.1 kW	3.5	1,308	$419	68% of similar
Mitsubishi Heavy Industries SRK63/DXK21ZRA-WF17.1 kW heating6.3 kW cooling1,308 kWh/yr	6.3 kW	7.1 kW	3.5	1,308	$419	68% of similar

Compare DXC21ZTLA-W / DXK21ZTLA-W with another model

Mitsubishi Heavy Industries DXC21ZTLA-W specifications

Type: Reverse cycle
Configuration: Split system
Air distribution: Non-ducted
Indoor unit: Wall hung
Rated cooling capacity (35 °C): 6.30 kW
Cooling power input: 1.84 kW
Rated heating capacity (7 °C): 7.10 kW
Heating power input: 2.01 kW
EER, full load (tested): 3.44
COP, full load (tested): 3.61
Rated AEER: 3.40
Rated ACOP: 3.51
Standby power (PIA): 3.7 W
Compressor: Variable speed, Inverter
Refrigerant: R32
Power supply: Single phase
Indoor sound power: 60 dB(A)
Outdoor sound power: 64 dB(A)
Demand response (AS/NZS 4755): Yes
Country of manufacture: Thailand

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

Mitsubishi Heavy Industries DXC21ZTLA-W 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	–	–	618	802	7.36	3.94
Coldresidential	residential	3.5	2.0	320	2,558	5.39	3.64
Mixedcommercial	commercial	–	–	828	415	6.50	4.37
Mixedresidential	residential	3.5	2.5	516	946	5.06	4.12
Hotcommercial	commercial	–	–	1,923	87	6.13	4.72
Hotresidential	residential	3.5	3.0	1,500	136	5.47	4.70

Part-load test points (20 values)

h__h2_ext_cap_power_rated: 2390 W
c__t1_half_cap_power_rated: 590 W
c__t1_have_min_cap_results: No
h__h1_half_cap_power_rated: 690 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: 6600 W
h__h1_half_cap_heat_cap_rated: 3550 W
h__h2_is_capable_extended_load: Yes
c__low_temp_full_cap_power_rated: 1681.76 W
c__low_temp_half_cap_power_rated: 490 W
c__low_temp_have_min_cap_results: No
c__t1_half_cap_cooling_cap_rated: 3150 W
c__low_temp_have_half_cap_results: Yes
c__low_temp_full_cap_cooling_cap_rated: 6785.099999999999 W
c__low_temp_half_cap_cooling_cap_rated: 3410 W

Other model numbers on registration AAC6374

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

Australian GEMS registration details

Registration number: AAC6374
GEMS registration id: 142679
Status: approved, available (self-reported)
Registration expires: 1 December 2026
Registered for sale in: Australia, Fiji, New Zealand
Family: SRK63/DXK21ZTLA-W
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: 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. Manufacturer: mhiaa.com.au. How the derived figures are calculated.