New Zealand · costs in NZD
Reverse cycle split system air conditioner, wall hung
LG WS09TWU / WS09TWN Heat Pump
LG WS09TWU / WS09TWN is a 2.6 kW reverse cycle split system heat pump registered for sale in New Zealand under the trans-Tasman E3 energy rating scheme (registration AAC8308).
- Energy rating (cooling)
- 4
- Heating: 2.5
- Annual electricity use
- 1,162 kWh
- 125 cooling + 1,037 heating
- Estimated running cost
- $383 / year
- $32 / month · $3,835 over 10 years
- Capacity
- 2.6 kW cooling
- 3.2 kW heating
8% more electricity than the median of 178 comparable 2.5 kW reverse cycle split system registrations (1,074 kWh a year) in the cold zone. Uses less than 27% of them.
Across all 3,612 air conditioner registrations sold in Australia, it uses less than 86% (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.
LG WS09TWU running cost by climate zone
| Climate zone | kWh / year | Per year | 10 years |
|---|---|---|---|
| Cold zone | 1,162 | $383 | $3,835 |
| Mixed zone | 584 | $193 | $1,927 |
| Hot zone | 622 | $205 | $2,053 |
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 2.6 kW, at least 3% lower annual kWh in the cold zone.
| Model | Stars | Est. cost / yr | Compare |
|---|---|---|---|
| Hitachi RAC-VJ25NHAE/RAI-VJ25RHAE3.5 kW heating2.5 kW cooling653 kWh/yr | 4 | $215 | |
| Midea MFEP26VA-W/MFEP26VA-N2.7 kW heating2.6 kW cooling776 kWh/yr | 6.5 | $256 | |
| Actron Air WRC-026DS / WRE-026DS2.7 kW heating2.6 kW cooling790 kWh/yr | 7 | $261 | |
| Midea MFEP26VB-W/MFEP26VB-N2.7 kW heating2.6 kW cooling790 kWh/yr | 7 | $261 | |
| Actron Air WRC-026CS / WRE-026CS2.8 kW heating2.6 kW cooling804 kWh/yr | 7 | $265 |
Heat pumps similar to the LG WS09TWU
Technically comparable registrations: same configuration and type, capacity within 12%.
| Model | Stars | Est. cost / yr | Compare |
|---|---|---|---|
| Rinnai HONRPX25/HINRPX25M3.3 kW heating2.6 kW cooling1,009 kWh/yr | 6.5 | $333 | |
| Midea MFEP26VA-W/MFEP26VA-N2.7 kW heating2.6 kW cooling776 kWh/yr | 6.5 | $256 | |
| Kaden KSI092.7 kW heating2.6 kW cooling923 kWh/yr | 5 | $305 | |
| Midea MFCA26VA-W/MFCA26VA-N2.6 kW heating2.6 kW cooling815 kWh/yr | 6.5 | $269 | |
| Kaden KS092.8 kW heating2.6 kW cooling1,018 kWh/yr | 4.5 | $336 | |
| TCL TAC-10CHSD/XA72IG3.3 kW heating2.6 kW cooling1,122 kWh/yr | 5 | $370 | |
| Kogan KASSSAC26TB3.3 kW heating2.6 kW cooling1,122 kWh/yr | 5 | $370 | |
| Kogan KASSSAC26T*3.3 kW heating2.6 kW cooling1,122 kWh/yr | 5 | $370 |
Compare WS09TWU / WS09TWN with another model
LG WS09TWU specifications
- Type
- Reverse cycle
- Configuration
- Split system
- Air distribution
- Non-ducted
- Indoor unit
- Wall hung
- Rated cooling capacity (35 °C)
- 2.60 kW
- Cooling power input
- 0.60 kW
- Rated heating capacity (7 °C)
- 3.20 kW
- Heating power input
- 0.74 kW
- EER, full load (tested)
- 4.68
- COP, full load (tested)
- 4.72
- Rated AEER
- 4.28
- Rated ACOP
- 4.27
- Standby power (PIA)
- 2.0 W
- Compressor
- Variable speed, Inverter
- Refrigerant
- R32
- Power supply
- Single phase
- Indoor sound power
- 60.2 dB(A)
- Outdoor sound power
- 55.9 dB(A)
- Demand response (AS/NZS 4755)
- Yes (mode 1 on off, mode 2 50 percent, mode 3 75 percent)
- Dimensions (W×H×D)
- 837 × 308 × 189 mm
- Country of manufacture
- Thailand
Dimensions are not collected for registrations under the 2019 Determination, so they are shown only where the source has them.
LG WS09TWU 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 | – | – | 195 | 335 |
| Coldresidential | residential | 4.0 | 2.5 | 125 | 1,037 |
| Mixedcommercial | commercial | – | – | 282 | 176 |
| Mixedresidential | residential | 4.0 | 3.0 | 193 | 391 |
| Hotcommercial | commercial | – | – | 699 | 38 |
| Hotresidential | residential | 4.5 | 3.0 | 562 | 60 |
Part-load test points (23 values)
- c__t1_min_cap_power_rated
- 220 W
- h__h2_ext_cap_power_rated
- 1280 W
- c__t1_half_cap_power_rated
- 280 W
- c__t1_have_min_cap_results
- Yes
- h__h1_half_cap_power_rated
- 300 W
- h__h1_have_min_cap_results
- No
- 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__h2_ext_cap_heat_cap_rated
- 3420 W
- h__h1_half_cap_heat_cap_rated
- 1600 W
- h__h2_is_capable_extended_load
- Yes
- c__low_temp_min_cap_power_rated
- 151 W
- c__t1_min_cap_cooling_cap_rated
- 950 W
- c__low_temp_full_cap_power_rated
- 548.4 W
- c__low_temp_half_cap_power_rated
- 218 W
- c__t1_half_cap_cooling_cap_rated
- 1300 W
- c__low_temp_have_half_cap_results
- Yes
- c__low_temp_min_cap_cooling_cap_rated
- 1000 W
- c__low_temp_full_cap_cooling_cap_rated
- 2800.2 W
- c__low_temp_half_cap_cooling_cap_rated
- 1400 W
New Zealand E3 registration details
- Registration number
- AAC8308
- GEMS registration id
- 162458
- Status
- approved, available (self-reported)
- Registration expires
- 23 June 2029
- 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 3823.1.1:2012
- MEPS
- 2019
- Product class
- Class 8
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.