New Zealand · costs in NZD
Reverse cycle window / wall air conditioner
Gree GJH12AG-K6NRNB3A Heat Pump
Gree GJH12AG-K6NRNB3A is a 3.9 kW reverse cycle window / wall heat pump registered for sale in New Zealand under the trans-Tasman E3 energy rating scheme (registration AAC8639).
- Energy rating (cooling)
- 1.5
- Heating: 0.5
- Annual electricity use
- 2,324 kWh
- 328 cooling + 1,996 heating
- Estimated running cost
- $767 / year
- $64 / month · $7,669 over 10 years
- Capacity
- 3.9 kW cooling
- 3.6 kW heating
About the same electricity as the median of 15 comparable 3.5 kW reverse cycle window / wall registrations (2,316 kWh a year) in the cold zone. Uses less than 13% of them.
Across all 3,611 air conditioner registrations sold in Australia, it uses less than 71% (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.
Gree GJH12AG-K6NRNB3A running cost by climate zone
| Climate zone | kWh / year | Per year | 10 years |
|---|---|---|---|
| Cold zone | 2,324 | $767 | $7,669 |
| Mixed zone | 1,267 | $418 | $4,181 |
| Hot zone | 1,579 | $521 | $5,211 |
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 3.9 kW, at least 3% lower annual kWh in the cold zone.
| Model | Stars | Est. cost / yr | Compare |
|---|---|---|---|
| Midea MWFI36H3.5 kW heating3.6 kW cooling2,030 kWh/yr | 2.5 | $670 | |
| Heller HWA13R3.6 kW heating4.1 kW cooling2,175 kWh/yr | 1.5 | $718 | |
| Kogan KAWDACR41T*3.6 kW heating4.2 kW cooling2,214 kWh/yr | 1.5 | $731 | |
| Bonaire CRC60000423.6 kW heating4.2 kW cooling2,214 kWh/yr | 1.5 | $731 | |
| Dimplex DCB143.6 kW heating4.2 kW cooling2,214 kWh/yr | 1.5 | $731 |
Heat pumps similar to the Gree GJH12AG-K6NRNB3A
Technically comparable registrations: same configuration and type, capacity within 12%.
| Model | Stars | Est. cost / yr | Compare |
|---|---|---|---|
| Kelvinator WH393.6 kW heating3.9 kW cooling2,324 kWh/yr | 1.5 | $767 | |
| Westinghouse WWH39HWA3.6 kW heating3.9 kW cooling2,324 kWh/yr | 1.5 | $767 | |
| Kelvinator KWH39HRF3.6 kW heating3.9 kW cooling2,324 kWh/yr | 1.5 | $767 | |
| TECO TWW40HFWDG3.6 kW heating3.9 kW cooling2,324 kWh/yr | 1.5 | $767 | |
| Kaden KW123.6 kW heating3.9 kW cooling2,324 kWh/yr | 1.5 | $767 | |
| Midea MWFF39H3.5 kW heating3.9 kW cooling2,316 kWh/yr | 2 | $764 | |
| Westinghouse WWH39HWC3.5 kW heating3.9 kW cooling2,316 kWh/yr | 2 | $764 | |
| Heller HWA13R3.6 kW heating4.1 kW cooling2,175 kWh/yr | 1.5 | $718 |
Compare GJH12AG-K6NRNB3A with another model
Gree GJH12AG-K6NRNB3A specifications
- Type
- Reverse cycle
- Configuration
- Window / wall
- Air distribution
- Non-ducted
- Indoor unit
- –
- Rated cooling capacity (35 °C)
- 3.90 kW
- Cooling power input
- 1.18 kW
- Rated heating capacity (7 °C)
- 3.60 kW
- Heating power input
- 1.06 kW
- EER, full load (tested)
- 3.29
- COP, full load (tested)
- 3.46
- Rated AEER
- 3.28
- Rated ACOP
- 3.37
- Standby power (PIA)
- 2.2 W
- Compressor
- Fixed speed
- Refrigerant
- R32
- Power supply
- Single phase
- Indoor sound power
- 60.6 dB(A)
- Outdoor sound power
- 69.1 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.
Gree GJH12AG-K6NRNB3A 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 | – | – | 760 | 635 |
| Coldresidential | residential | 1.5 | 0.5 | 328 | 1,996 |
| Mixedcommercial | commercial | – | – | 936 | 335 |
| Mixedresidential | residential | 1.5 | 1.0 | 496 | 771 |
| Hotcommercial | commercial | – | – | 2,022 | 70 |
| Hotresidential | residential | 1.5 | 1.0 | 1,467 | 112 |
Part-load test points (6 values)
- h__h2_full_cap_power_rated
- 910 W
- h__h3_have_full_cap_results
- No
- h__h2_full_cap_heat_cap_rated
- 2300 W
- c__low_temp_full_cap_power_rated
- 1090 W
- c__low_temp_have_full_cap_results
- Yes
- c__low_temp_full_cap_cooling_cap_rated
- 4250 W
Other model numbers on registration AAC8639
Registered together and sharing the same test results. Usually variants of the same unit.
New Zealand E3 registration details
- Registration number
- AAC8639
- GEMS registration id
- 167582
- Status
- approved, available (self-reported)
- Registration expires
- 31 March 2030
- Registered for sale in
- Australia, Fiji, New Zealand
- Family
- GJH12AG-K6NRNR1A
- 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 19 September 2026; last checked 20 September 2026. How the derived figures are calculated.