c/kWh
Energy rating (cooling)
1.5
Annual electricity use
13,829 kWh
Estimated running cost
$4,425 / year
$369 / month Β· $44,253 over 10 years
Capacity
109.7 kW cooling

18% more electricity than the median of 10 comparable 80 kW and above cooling only ducted packaged registrations (11,738 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 5% (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 Γ— 32c/kWh in AUD; change the price above to your tariff.

Diamond RT109 running cost by climate zone

Climate zonekWh / yearPer year10 years
Cold zone 9,101$2,912$29,123
Mixed zone 13,829$4,425$44,253
Hot zone 41,358$13,235$132,346

At 32c/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.

Air conditioners that use less electricity

Same configuration and type, cooling capacity within 12% of 109.7 kW, at least 3% lower annual kWh in the mixed zone.

ModelStarsEst. cost / yrCompare
Diamond RT09697.9 kW cooling11,774 kWh/yr2$3,768

Air conditioners similar to the Diamond RT109

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

No comparable registrations from other brands.

Other Diamond models of similar capacity

ModelStarsEst. cost / yrCompare
Diamond RT09697.9 kW cooling11,774 kWh/yr2$3,768

Compare RT109 with another model

Diamond RT109 specifications

Type
Cooling only
Configuration
Packaged
Air distribution
Ducted
Indoor unit
–
Rated cooling capacity (35 Β°C)
109.68 kW
Cooling power input
33.46 kW
Rated heating capacity (7 Β°C)
–
Heating power input
–
EER, full load (tested)
3.28
COP, full load (tested)
–
Rated AEER
3.28
Rated ACOP
–
Standby power (PIA)
3.0 W
Compressor
Fixed speed
Refrigerant
R407
Power supply
Three phase
Indoor sound power
–
Outdoor sound power
–
Demand response (AS/NZS 4755)
No
Country of manufacture
Australia

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

Diamond RT109 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––21,289–
Coldresidential1.5–9,101–
Mixedcommercial––26,296–
Mixedresidential1.5–13,829–
Hotcommercial––57,053–
Hotresidential1.5–41,358–
Part-load test points (1 values)
c__low_temp_have_full_cap_results
No

Australian GEMS registration details

Registration number
AAC7135
GEMS registration id
150817
Status
approved, available (self-reported)
Registration expires
7 November 2027
Registered for sale in
Australia
Family
–
Regulatory standard
[SEER Non Multi-Split >65kW] GEMS (Air Conditioners above 65kW) Determination 2022
Test standard
Simulation
MEPS
2020
Product class
Class 24

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. How the derived figures are calculated.