Australia · costs in AUD
Cooling only packaged air conditioner
Diamond RT 018 Air Conditioner
Diamond RT 018 is a 18 kW cooling only ducted packaged air conditioner registered under Australia’s Energy Rating (GEMS) scheme (registration AAC10232).
- Energy rating (cooling)
- 1.5
- Annual electricity use
- 2,308 kWh
- Estimated running cost
- $739 / year
- $62 / month · $7,386 over 10 years
- Capacity
- 18 kW cooling
Only 2 comparable registrations in this cohort, so no percentile is shown.
Across all 3,680 air conditioner registrations sold in Australia, it uses less than 46% (this compares very different sizes, so the cohort figure above is the useful one).
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.
Diamond RT 018 running cost by climate zone
| Climate zone | kWh / year | Per year | 10 years |
|---|---|---|---|
| Cold zone | 1,519 | $486 | $4,861 |
| Mixed zone | 2,308 | $739 | $7,386 |
| Hot zone | 6,897 | $2,207 | $22,070 |
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 18 kW, at least 3% lower annual kWh in the mixed zone.
| Model | Stars | Est. cost / yr | Compare |
|---|---|---|---|
| Diamond RT01717 kW cooling2,192 kWh/yr | 1.5 | $701 |
Air conditioners similar to the Diamond RT 018
Technically comparable registrations: same configuration and type, capacity within 12%.
No comparable registrations from other brands.
Other Diamond models of similar capacity
| Model | Stars | Est. cost / yr | Compare |
|---|---|---|---|
| Diamond RT01717 kW cooling2,192 kWh/yr | 1.5 | $701 |
Compare RT 018 with another model
Diamond RT 018 specifications
- Type
- Cooling only
- Configuration
- Packaged
- Air distribution
- Ducted
- Indoor unit
- –
- Rated cooling capacity (35 °C)
- 18.00 kW
- Cooling power input
- 5.58 kW
- Rated heating capacity (7 °C)
- –
- Heating power input
- –
- EER, full load (tested)
- 3.21
- COP, full load (tested)
- –
- Rated AEER
- 3.22
- Rated ACOP
- –
- Standby power (PIA)
- 1.0 W
- Compressor
- Fixed speed
- Refrigerant
- R407C
- 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 RT 018 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 |
|---|---|---|---|---|---|
| Coldcommercial | commercial | – | – | 3,551 | – |
| Coldresidential | residential | 1.5 | – | 1,519 | – |
| Mixedcommercial | commercial | – | – | 4,386 | – |
| Mixedresidential | residential | 1.5 | – | 2,308 | – |
| Hotcommercial | commercial | – | – | 9,514 | – |
| Hotresidential | residential | 1.5 | – | 6,897 | – |
Part-load test points (1 values)
- c__low_temp_have_full_cap_results
- No
Australian GEMS registration details
- Registration number
- AAC10232
- GEMS registration id
- 179929
- Status
- approved, available (self-reported)
- Registration expires
- 21 June 2031
- Registered for sale in
- Australia
- Family
- –
- Regulatory standard
- [SEER Non Multi-Split <=65kW] GEMS (Air Conditioners up to 65kW) Determination 2019
- Test standard
- Simulation
- MEPS
- 2019
- Product class
- Class 6
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.