New Zealand · costs in NZD
Reverse cycle split system air conditioner, floor mounted
Mitsubishi Electric MUFZ-KW42VG2/MFZ-KW42VGK Heat Pump
Mitsubishi Electric MUFZ-KW42VG2/MFZ-KW42VGK is a 4.2 kW reverse cycle split system heat pump registered for sale in New Zealand under the trans-Tasman E3 energy rating scheme (registration AAC8315).
- Energy rating (cooling)
- 3
- Heating: 2
- Annual electricity use
- 2,168 kWh
- 255 cooling + 1,913 heating
- Estimated running cost
- $715 / year
- $60 / month · $7,154 over 10 years
- Capacity
- 4.2 kW cooling
- 5.4 kW heating
55% more electricity than the median of 187 comparable 3.5 kW reverse cycle split system registrations (1,395 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 74% (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.
Mitsubishi Electric MUFZ-KW42VG2 running cost by climate zone
| Climate zone | kWh / year | Per year | 10 years |
|---|---|---|---|
| Cold zone | 2,168 | $715 | $7,154 |
| Mixed zone | 1,104 | $364 | $3,643 |
| Hot zone | 1,265 | $417 | $4,175 |
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 4.2 kW, at least 3% lower annual kWh in the cold zone.
| Model | Stars | Est. cost / yr | Compare |
|---|---|---|---|
| Hisense HAWU12KR3.9 kW heating3.7 kW cooling1,332 kWh/yr | 6 | $440 | |
| Hisense HAWH12KR3.9 kW heating3.7 kW cooling1,360 kWh/yr | 5 | $449 | |
| 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 | |
| Toshiba RAS-13U2AVSG-NZ / RAS-13U2FVG-NZ4.2 kW heating4 kW cooling1,756 kWh/yr | 4 | $579 |
Heat pumps similar to the Mitsubishi Electric MUFZ-KW42VG2
Technically comparable registrations: same configuration and type, capacity within 12%.
| Model | Stars | Est. cost / yr | Compare |
|---|---|---|---|
| Fujitsu AOTG14KVCA/AGTG14KVCA5.2 kW heating4.2 kW cooling2,113 kWh/yr | 4 | $697 | |
| Toshiba RAS-16E2AVG-A/RAS-16E2KV2G-A5.4 kW heating4.2 kW cooling2,324 kWh/yr | 3 | $767 | |
| Fujitsu AOTH14KNCA/ASTH14KNCA4.7 kW heating4.2 kW cooling1,822 kWh/yr | 4 | $601 | |
| Toshiba RAS-16ZAVSG-A / RAS-16ZKVSG-A5.4 kW heating4.2 kW cooling2,099 kWh/yr | 4 | $693 | |
| Mitsubishi Heavy Industries SRC42ZTA-W/SRK42ZTA-WF5.4 kW heating4.2 kW cooling1,950 kWh/yr | 4.5 | $644 | |
| Panasonic CU-RZ42DKR / CS-RZ42DKRW5 kW heating4.2 kW cooling1,969 kWh/yr | 3.5 | $650 | |
| Mitsubishi Heavy Industries SRC42ZTA-W* / SRK42ZTA-WF*5.4 kW heating4.2 kW cooling1,950 kWh/yr | 4.5 | $644 | |
| Panasonic CU-*Z42DKR / CS-*Z42DKRW5 kW heating4.2 kW cooling1,969 kWh/yr | 3.5 | $650 |
Compare MUFZ-KW42VG2/MFZ-KW42VGK with another model
Mitsubishi Electric MUFZ-KW42VG2 specifications
- Type
- Reverse cycle
- Configuration
- Split system
- Air distribution
- Non-ducted
- Indoor unit
- Floor mounted
- Rated cooling capacity (35 °C)
- 4.20 kW
- Cooling power input
- 1.11 kW
- Rated heating capacity (7 °C)
- 5.40 kW
- Heating power input
- 1.43 kW
- EER, full load (tested)
- 3.81
- COP, full load (tested)
- 3.92
- Rated AEER
- 3.76
- Rated ACOP
- 3.76
- Standby power (PIA)
- 2.3 W
- Compressor
- Variable speed, Inverter
- Refrigerant
- R32
- Power supply
- Single phase
- Indoor sound power
- 56.4 dB(A)
- Outdoor sound power
- 56.8 dB(A)
- Demand response (AS/NZS 4755)
- No
- Country of manufacture
- Japan
Dimensions are not collected for registrations under the 2019 Determination, so they are shown only where the source has them.
Mitsubishi Electric MUFZ-KW42VG2 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 | – | – | 572 | 605 |
| Coldresidential | residential | 3.0 | 2.0 | 255 | 1,913 |
| Mixedcommercial | commercial | – | – | 715 | 314 |
| Mixedresidential | residential | 2.5 | 2.5 | 395 | 709 |
| Hotcommercial | commercial | – | – | 1,573 | 65 |
| Hotresidential | residential | 3.0 | 3.0 | 1,162 | 103 |
Part-load test points (20 values)
- h__h2_ext_cap_power_rated
- 1680 W
- c__t1_half_cap_power_rated
- 470 W
- c__t1_have_min_cap_results
- No
- h__h1_half_cap_power_rated
- 530 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
- 4900 W
- h__h1_half_cap_heat_cap_rated
- 2700 W
- h__h2_is_capable_extended_load
- Yes
- c__low_temp_full_cap_power_rated
- 1014.5400000000001 W
- c__low_temp_half_cap_power_rated
- 429.58000000000004 W
- c__low_temp_have_min_cap_results
- No
- c__t1_half_cap_cooling_cap_rated
- 2100 W
- c__low_temp_have_half_cap_results
- No
- c__low_temp_full_cap_cooling_cap_rated
- 4523.4 W
- c__low_temp_half_cap_cooling_cap_rated
- 2261.7 W
New Zealand E3 registration details
- Registration number
- AAC8315
- GEMS registration id
- 162780
- Status
- approved, available (self-reported)
- Registration expires
- 27 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 25 September 2026; last checked 26 September 2026. Manufacturer: MitsubishiElectric.com.au. How the derived figures are calculated.