c/kWh
Energy rating (cooling)
2.5
Heating: 2
Annual electricity use
7,978 kWh
1,038 cooling + 6,940 heating
Estimated running cost
$2,633 / year
$219 / month Β· $26,327 over 10 years
Capacity
18 kW cooling
20 kW heating

5% less electricity than the median of 51 comparable 18 kW reverse cycle ducted split system registrations (8,396 kWh a year) in the cold zone. Uses less than 61% of them.

Across all 3,611 air conditioner registrations sold in Australia, it uses less than 19% (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 Γ— 33c/kWh in NZD; change the price above to your tariff.

Daikin RZAS180DY1 running cost by climate zone

Climate zonekWh / yearPer year10 years
Cold zone 7,978$2,633$26,327
Mixed zone 4,153$1,370$13,705
Hot zone 4,862$1,604$16,045

At 33c/kWh. Formula: cost = annual kWh Γ— 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 18 kW, at least 3% lower annual kWh in the cold zone.

ModelStarsEst. cost / yrCompare
Carrier 38QSH170D8S / 42QSH170D8S17 kW heating17 kW cooling6,907 kWh/yr3.5$2,279
Midea DUCMI170IHB/UCMI170OB17.5 kW heating17 kW cooling7,066 kWh/yr4$2,332
Midea DUCMI170IHB/UCMI170OB17.5 kW heating17 kW cooling7,066 kWh/yr4$2,332
Actron Air LRC-170CS / LRE-170CS17.6 kW heating16.6 kW cooling7,156 kWh/yr4$2,361
Actron Air LRC-170DS / LRE-170DS18 kW heating17 kW cooling7,212 kWh/yr3.5$2,380

Heat pumps similar to the Daikin RZAS180DY1

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

ModelStarsEst. cost / yrCompare
Panasonic U-180PZH3R5 / S-180PE4R20 kW heating18 kW cooling8,186 kWh/yr2.5$2,701
Panasonic U-180PZH3R8 / S-180PE4R20 kW heating18 kW cooling8,186 kWh/yr2.5$2,701
Reclaim Energy CA-D180D1HWH-ODU/CA-D180D1HWH-IDU20 kW heating18 kW cooling8,488 kWh/yr3$2,801
Mitsubishi Electric PUZ-ZM180VKA-A / PEA-M180LAA20 kW heating18 kW cooling8,484 kWh/yr2.5$2,800
TCL TCD180D1HWHS2-DVO/TCD180D1HWHS2-DVI20 kW heating18 kW cooling8,488 kWh/yr3$2,801
Fujitsu AOTG65LRLA/ARTG65LHTA20 kW heating18 kW cooling7,679 kWh/yr10$2,534
Braemar KCHB180D1B/KDHB180D1S19.5 kW heating18 kW cooling8,528 kWh/yr3$2,814
Mitsubishi Electric PUZ-ZM180YKA-A / PEA-M180LAA20 kW heating18 kW cooling8,483 kWh/yr2.5$2,799

Compare RZAS180DY1 / FDYA180AV1 with another model

Daikin RZAS180DY1 specifications

Type
Reverse cycle
Configuration
Split system
Air distribution
Ducted
Indoor unit
–
Rated cooling capacity (35 Β°C)
18.00 kW
Cooling power input
5.09 kW
Rated heating capacity (7 Β°C)
20.00 kW
Heating power input
4.85 kW
EER, full load (tested)
3.38
COP, full load (tested)
3.99
Rated AEER
3.43
Rated ACOP
3.99
Standby power (PIA)
48.0 W
Compressor
Variable speed, Inverter
Refrigerant
R32
Power supply
Three phase
Indoor sound power
–
Outdoor sound power
–
Demand response (AS/NZS 4755)
Yes
Country of manufacture
Australia, Thailand

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

Daikin RZAS180DY1 zoned energy rating figures

As published for each climate zone. Residential figures drive the star ratings; commercial figures assume a commercial usage pattern.

ZoneCooling starsHeating starsCooling kWhHeating kWh
Coldcommercial––1,7042,185
Coldresidential2.52.01,0386,940
Mixedcommercial––2,2981,140
Mixedresidential2.52.51,5982,555
Hotcommercial––5,534298
Hotresidential3.53.54,421441
Part-load test points (23 values)
c__t1_min_cap_power_rated
900 W
h__h1_min_cap_power_rated
980 W
h__h2_ext_cap_power_rated
5800 W
c__t1_half_cap_power_rated
1800 W
c__t1_have_min_cap_results
Yes
h__h1_half_cap_power_rated
1890 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
5250 W
h__h2_ext_cap_heat_cap_rated
17000 W
h__h1_half_cap_heat_cap_rated
10000 W
h__h2_is_capable_extended_load
Yes
c__low_temp_min_cap_power_rated
700 W
c__t1_min_cap_cooling_cap_rated
4200 W
c__low_temp_half_cap_power_rated
1420 W
c__t1_half_cap_cooling_cap_rated
9000 W
c__low_temp_have_half_cap_results
Yes
c__low_temp_min_cap_cooling_cap_rated
5000 W
c__low_temp_half_cap_cooling_cap_rated
9180 W

New Zealand E3 registration details

Registration number
AAC9123
GEMS registration id
171318
Status
approved, available (self-reported)
Registration expires
23 July 2030
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 3823.1.2:2012
MEPS
2019
Product class
Class 11

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. Manufacturer: daikin.com.au. How the derived figures are calculated.