New Zealand · costs in NZD
Reverse cycle split system air conditioner, wall hung
LG WS24SLU-23 / WS24SLN-23 Heat Pump
LG WS24SLU-23 / WS24SLN-23 is a 7.1 kW reverse cycle split system heat pump registered for sale in New Zealand under the trans-Tasman E3 energy rating scheme (registration AAC7755).
- Energy rating (cooling)
- 4
- Heating: 1.5
- Annual electricity use
- 3,684 kWh
- 342 cooling + 3,342 heating
- Estimated running cost
- $1,216 / year
- $101 / month · $12,157 over 10 years
- Capacity
- 7.1 kW cooling
- 7.7 kW heating
17% more electricity than the median of 203 comparable 7 kW reverse cycle split system registrations (3,143 kWh a year) in the cold zone. Uses less than 3% of them.
Across all 3,611 air conditioner registrations sold in Australia, it uses less than 51% (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 WS24SLU-23 running cost by climate zone
| Climate zone | kWh / year | Per year | 10 years |
|---|---|---|---|
| Cold zone | 3,684 | $1,216 | $12,157 |
| Mixed zone | 1,703 | $562 | $5,620 |
| Hot zone | 1,800 | $594 | $5,940 |
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 7.1 kW, at least 3% lower annual kWh in the cold zone.
| Model | Stars | Est. cost / yr | Compare |
|---|---|---|---|
| Mitsubishi Heavy Industries SRK63/DXK21ZRA-WF17.1 kW heating6.3 kW cooling2,507 kWh/yr | 4 | $827 | |
| Mitsubishi Heavy Industries DXC21ZRA-W / DXK21ZRA-WF17.1 kW heating6.3 kW cooling2,507 kWh/yr | 4 | $827 | |
| Panasonic U-71PZ3R5/S-6071PT3E6.8 kW heating6.8 kW cooling2,584 kWh/yr | 3 | $853 | |
| Panasonic U-71PZ4R5 / S-6071PT3E6.8 kW heating6.8 kW cooling2,606 kWh/yr | 3 | $860 | |
| Solar Acdc DGWA5-ACDCBLW-24KR27 kW heating6.5 kW cooling2,612 kWh/yr | 5 | $862 |
Heat pumps similar to the LG WS24SLU-23
Technically comparable registrations: same configuration and type, capacity within 12%.
| Model | Stars | Est. cost / yr | Compare |
|---|---|---|---|
| Gree GWH24AVEXH-K6DNA1D/O / GWH24AVEXH-K6DNA1D/I7.8 kW heating7.1 kW cooling3,034 kWh/yr | 3.5 | $1,001 | |
| Kogan KASSSAC71H*7.5 kW heating7.1 kW cooling2,824 kWh/yr | 4.5 | $932 | |
| Mitsubishi Heavy Industries SRK/DXK_71/24ZRA-W8 kW heating7.1 kW cooling3,062 kWh/yr | 3.5 | $1,010 | |
| Braemar WCHV70D1T/WSHV70D1T7.1 kW heating7.1 kW cooling2,879 kWh/yr | 3.5 | $950 | |
| Kogan KASSSAC71HB7.5 kW heating7.1 kW cooling2,824 kWh/yr | 4.5 | $932 | |
| Haier 1U71TPHRA / AS71TPHRA7.5 kW heating7.1 kW cooling2,815 kWh/yr | 4 | $929 | |
| Daikin RXM71AVMA / FTXM71AVMA8 kW heating7.1 kW cooling2,764 kWh/yr | 3.5 | $912 | |
| Gree GWH24AVEXH-K6DNA1C/O / GWH24AVEXH-K6DNA1C/I7.8 kW heating7.1 kW cooling2,992 kWh/yr | 4.5 | $987 |
Compare WS24SLU-23 / WS24SLN-23 with another model
LG WS24SLU-23 specifications
- Type
- Reverse cycle
- Configuration
- Split system
- Air distribution
- Non-ducted
- Indoor unit
- Wall hung
- Rated cooling capacity (35 °C)
- 7.10 kW
- Cooling power input
- 2.15 kW
- Rated heating capacity (7 °C)
- 7.70 kW
- Heating power input
- 2.10 kW
- EER, full load (tested)
- 3.38
- COP, full load (tested)
- 3.84
- Rated AEER
- 3.30
- Rated ACOP
- 3.66
- Standby power (PIA)
- 0.6 W
- Compressor
- Variable speed, Inverter
- Refrigerant
- R32
- Power supply
- Single phase
- Indoor sound power
- 65.3 dB(A)
- Outdoor sound power
- 63.4 dB(A)
- Demand response (AS/NZS 4755)
- Yes
- 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 WS24SLU-23 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 | – | – | 2,238 | 1,012 |
| Coldresidential | residential | 4.0 | 1.5 | 342 | 3,342 |
| Mixedcommercial | commercial | – | – | 408 | 470 |
| Mixedresidential | residential | 4.0 | 2.0 | 542 | 1,161 |
| Hotcommercial | commercial | – | – | 2,826 | 86 |
| Hotresidential | residential | 4.0 | 3.0 | 1,663 | 137 |
Part-load test points (23 values)
- c__t1_min_cap_power_rated
- 500 W
- h__h2_ext_cap_power_rated
- 1800 W
- c__t1_half_cap_power_rated
- 710 W
- c__t1_have_min_cap_results
- Yes
- h__h1_half_cap_power_rated
- 740 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
- 5200 W
- h__h1_half_cap_heat_cap_rated
- 3850 W
- h__h2_is_capable_extended_load
- Yes
- c__low_temp_min_cap_power_rated
- 265 W
- c__t1_min_cap_cooling_cap_rated
- 2600 W
- c__low_temp_full_cap_power_rated
- 1965.1000000000001 W
- c__low_temp_half_cap_power_rated
- 630 W
- c__t1_half_cap_cooling_cap_rated
- 3550 W
- c__low_temp_have_half_cap_results
- Yes
- c__low_temp_min_cap_cooling_cap_rated
- 1900 W
- c__low_temp_full_cap_cooling_cap_rated
- 7646.7 W
- c__low_temp_half_cap_cooling_cap_rated
- 3760 W
New Zealand E3 registration details
- Registration number
- AAC7755
- GEMS registration id
- 156387
- Status
- approved, available (self-reported)
- Registration expires
- 2 September 2028
- 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 9
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.