New Zealand · costs in NZD
Reverse cycle split system air conditioner, wall hung
LG WH18SLU-19 / WH18SLN-19 Heat Pump
LG WH18SLU-19 / WH18SLN-19 is a 5 kW reverse cycle split system heat pump registered for sale in New Zealand under the trans-Tasman E3 energy rating scheme (registration AAC8303).
- Energy rating (cooling)
- 4.5
- Heating: 2
- Annual electricity use
- 2,327 kWh
- 219 cooling + 2,108 heating
- Estimated running cost
- $768 / year
- $64 / month · $7,679 over 10 years
- Capacity
- 5 kW cooling
- 6 kW heating
8% more electricity than the median of 236 comparable 5 kW reverse cycle split system registrations (2,154 kWh a year) in the cold zone. Uses less than 22% 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.
LG WH18SLU-19 running cost by climate zone
| Climate zone | kWh / year | Per year | 10 years |
|---|---|---|---|
| Cold zone | 2,327 | $768 | $7,679 |
| Mixed zone | 1,116 | $368 | $3,683 |
| Hot zone | 1,151 | $380 | $3,798 |
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 5 kW, at least 3% lower annual kWh in the cold zone.
| Model | Stars | Est. cost / yr | Compare |
|---|---|---|---|
| Daikin RXM46AVMA / FTXM46AVMA4.7 kW heating4.6 kW cooling1,543 kWh/yr | 4.5 | $509 | |
| Daikin RXM46WVMA / FTXM46WVMA4.7 kW heating4.6 kW cooling1,571 kWh/yr | 4.5 | $518 | |
| Gree GWH15AGDXD-K6DNA1A/O / GWH15AGDXD-K6DNA1A/I4.7 kW heating4.6 kW cooling1,835 kWh/yr | 4 | $606 | |
| Gree GWH15QDXE-K6DNA1A/O / GWH15QDXE-K6DNA1A/I4.7 kW heating4.6 kW cooling1,839 kWh/yr | 3 | $607 | |
| Midea MFCA50VA-W/MFCA50VA-N5.2 kW heating5.2 kW cooling1,841 kWh/yr | 4.5 | $608 |
Heat pumps similar to the LG WH18SLU-19
Technically comparable registrations: same configuration and type, capacity within 12%.
| Model | Stars | Est. cost / yr | Compare |
|---|---|---|---|
| Actron Air WRC-050CS / WRE-050CS5 kW heating5 kW cooling1,936 kWh/yr | 5 | $639 | |
| Daikin RXM50AVMA / FTXM50AVMA6 kW heating5 kW cooling1,881 kWh/yr | 5.5 | $621 | |
| Panasonic CU-HZ50DKR / CS-HZ50DKR6 kW heating5 kW cooling1,940 kWh/yr | 5.5 | $640 | |
| Haier 1U50PFHRA / AS50PFHRA5.3 kW heating5 kW cooling1,973 kWh/yr | 4 | $651 | |
| Hisense HAWG18KR5.3 kW heating5 kW cooling1,993 kWh/yr | 4 | $658 | |
| Pioneer International HPR-18A25.1 kW heating5 kW cooling1,968 kWh/yr | 4 | $649 | |
| Kaden KS185.1 kW heating5 kW cooling2,008 kWh/yr | 3.5 | $663 | |
| Daikin RXM50WVMA / FTXM50WVMA6 kW heating5 kW cooling1,903 kWh/yr | 5 | $628 |
Compare WH18SLU-19 / WH18SLN-19 with another model
LG WH18SLU-19 specifications
- Type
- Reverse cycle
- Configuration
- Split system
- Air distribution
- Non-ducted
- Indoor unit
- Wall hung
- Rated cooling capacity (35 °C)
- 5.00 kW
- Cooling power input
- 1.22 kW
- Rated heating capacity (7 °C)
- 6.00 kW
- Heating power input
- 1.38 kW
- EER, full load (tested)
- 4.29
- COP, full load (tested)
- 4.51
- Rated AEER
- 4.09
- Rated ACOP
- 4.34
- Standby power (PIA)
- 0.6 W
- Compressor
- Variable speed, Inverter
- Refrigerant
- R32
- Power supply
- Single phase
- Indoor sound power
- 65 dB(A)
- Outdoor sound power
- 60 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 WH18SLU-19 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 | – | – | 406 | 673 |
| Coldresidential | residential | 4.5 | 2.0 | 219 | 2,108 |
| Mixedcommercial | commercial | – | – | 551 | 345 |
| Mixedresidential | residential | 4.5 | 2.5 | 349 | 767 |
| Hotcommercial | commercial | – | – | 1,330 | 70 |
| Hotresidential | residential | 4.5 | 3.0 | 1,040 | 111 |
Part-load test points (23 values)
- c__t1_min_cap_power_rated
- 300 W
- h__h2_ext_cap_power_rated
- 1800 W
- c__t1_half_cap_power_rated
- 460 W
- c__t1_have_min_cap_results
- Yes
- h__h1_half_cap_power_rated
- 600 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
- 3000 W
- h__h2_is_capable_extended_load
- Yes
- c__low_temp_min_cap_power_rated
- 241 W
- c__t1_min_cap_cooling_cap_rated
- 1700 W
- c__low_temp_full_cap_power_rated
- 1115.0800000000002 W
- c__low_temp_half_cap_power_rated
- 370 W
- c__t1_half_cap_cooling_cap_rated
- 2500 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
- 5385 W
- c__low_temp_half_cap_cooling_cap_rated
- 2675 W
New Zealand E3 registration details
- Registration number
- AAC8303
- GEMS registration id
- 162207
- Status
- approved, available (self-reported)
- Registration expires
- 19 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 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.