New Zealand · costs in NZD
Reverse cycle window / wall air conditioner
Kaden KW21 Heat Pump
Kaden KW21 is a 6 kW reverse cycle window / wall heat pump registered for sale in New Zealand under the trans-Tasman E3 energy rating scheme (registration AAC10169).
- Energy rating (cooling)
- 1.5
- Heating: 0.5
- Annual electricity use
- 3,734 kWh
- 503 cooling + 3,231 heating
- Estimated running cost
- $1,232 / year
- $103 / month · $12,322 over 10 years
- Capacity
- 6 kW cooling
- 5.5 kW heating
6% less electricity than the median of 7 comparable 6 kW reverse cycle window / wall registrations (3,964 kWh a year) in the cold zone. Uses less than 86% of them.
Across all 3,612 air conditioner registrations sold in Australia, it uses less than 50% (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 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 × 33c/kWh in NZD; change the price above to your tariff.
Kaden KW21 running cost by climate zone
| Climate zone | kWh / year | Per year | 10 years |
|---|---|---|---|
| Cold zone | 3,734 | $1,232 | $12,322 |
| Mixed zone | 2,012 | $664 | $6,640 |
| Hot zone | 2,444 | $807 | $8,065 |
At 33c/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.
Heat pumps that use less electricity
Same configuration and type, cooling capacity within 12% of 6 kW, at least 3% lower annual kWh in the cold zone.
| Model | Stars | Est. cost / yr | Compare |
|---|---|---|---|
| Gree GJH18AH-K6DRNG1A4.8 kW heating5.3 kW cooling2,357 kWh/yr | 2.5 | $778 | |
| Gree GJH18AH-K6DRNB3A4.8 kW heating5.3 kW cooling2,357 kWh/yr | 2.5 | $778 | |
| TECO TWW53HVAG4.8 kW heating5.3 kW cooling2,357 kWh/yr | 2.5 | $778 | |
| Midea MWFF53H4.8 kW heating5.4 kW cooling3,190 kWh/yr | 1.5 | $1,053 | |
| TECO TWW53HFWDG4.8 kW heating5.3 kW cooling3,193 kWh/yr | 1.5 | $1,054 |
Heat pumps similar to the Kaden KW21
Technically comparable registrations: same configuration and type, capacity within 12%.
| Model | Stars | Est. cost / yr | Compare |
|---|---|---|---|
| Westinghouse WH605.8 kW heating6.1 kW cooling3,964 kWh/yr | 1.5 | $1,308 | |
| TECO TWW61HFWEG5.8 kW heating6.1 kW cooling3,964 kWh/yr | 1.5 | $1,308 | |
| Gree GJH21AE-K6NRN**A5.7 kW heating6.1 kW cooling3,840 kWh/yr | 1.5 | $1,267 | |
| TECO TWW61HFWDG5.7 kW heating6.1 kW cooling3,840 kWh/yr | 1.5 | $1,267 | |
| Westinghouse WWH60HWA5.8 kW heating6.1 kW cooling3,964 kWh/yr | 1.5 | $1,308 | |
| Gree GJH21AE-K6NRNB3A5.7 kW heating6.1 kW cooling3,840 kWh/yr | 1.5 | $1,267 | |
| Kelvinator KWH60HRF5.8 kW heating6.1 kW cooling3,964 kWh/yr | 1.5 | $1,308 |
Other Kaden models of similar capacity
| Model | Stars | Est. cost / yr | Compare |
|---|---|---|---|
| Kaden KW215.8 kW heating6.1 kW cooling3,964 kWh/yr | 1.5 | $1,308 |
Compare KW21 with another model
Kaden KW21 specifications
- Type
- Reverse cycle
- Configuration
- Window / wall
- Air distribution
- Non-ducted
- Indoor unit
- –
- Rated cooling capacity (35 °C)
- 6.00 kW
- Cooling power input
- 1.81 kW
- Rated heating capacity (7 °C)
- 5.52 kW
- Heating power input
- 1.69 kW
- EER, full load (tested)
- 3.37
- COP, full load (tested)
- 3.20
- Rated AEER
- 3.30
- Rated ACOP
- 3.25
- Standby power (PIA)
- 1.9 W
- Compressor
- Fixed speed
- Refrigerant
- R32
- Power supply
- Single phase
- Indoor sound power
- 65.3 dB(A)
- Outdoor sound power
- 73 dB(A)
- Demand response (AS/NZS 4755)
- No
- Country of manufacture
- China
Dimensions are not collected for registrations under the 2019 Determination, so they are shown only where the source has them.
Kaden KW21 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 | – | – | 1,180 | 1,019 |
| Coldresidential | residential | 1.5 | 0.5 | 503 | 3,231 |
| Mixedcommercial | commercial | – | – | 1,452 | 535 |
| Mixedresidential | residential | 1.5 | 0.5 | 763 | 1,249 |
| Hotcommercial | commercial | – | – | 3,135 | 108 |
| Hotresidential | residential | 1.5 | 1.0 | 2,268 | 176 |
Part-load test points (6 values)
- h__h2_full_cap_power_rated
- 1470 W
- h__h3_have_full_cap_results
- No
- h__h2_full_cap_heat_cap_rated
- 3450 W
- c__low_temp_full_cap_power_rated
- 1650 W
- c__low_temp_have_full_cap_results
- Yes
- c__low_temp_full_cap_cooling_cap_rated
- 6350 W
Related Kaden model numbers starting with KW21
1 model numbers on 1 other registration. Variants registered separately can carry different star ratings and energy figures; check the registration number on the label.
| Model | Registration | Stars | kWh / yr | Registration expires |
|---|---|---|---|---|
| KW21 | AAC8296 | 1.5 | 3,964 | 13 June 2029 |
New Zealand E3 registration details
- Registration number
- AAC10169
- GEMS registration id
- 179544
- Status
- approved, available (self-reported)
- Registration expires
- 18 August 2031
- Registered for sale in
- Australia, Fiji, 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 5
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: reece.com.au. How the derived figures are calculated.