New Zealand · costs in NZD
Reverse cycle window / wall air conditioner
Midea MWFF39H Heat Pump
Midea MWFF39H 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 AAC8248).
- Energy rating (cooling)
- 2
- Heating: 0.5
- Annual electricity use
- 2,316 kWh
- 301 cooling + 2,015 heating
- Estimated running cost
- $764 / year
- $64 / month · $7,643 over 10 years
- Capacity
- 3.9 kW cooling
- 3.5 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 40% 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.
Midea MWFF39H running cost by climate zone
| Climate zone | kWh / year | Per year | 10 years |
|---|---|---|---|
| Cold zone | 2,316 | $764 | $7,643 |
| Mixed zone | 1,230 | $406 | $4,059 |
| Hot zone | 1,468 | $484 | $4,844 |
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 | |
| 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 | |
| Kogan KAWDACR41T*3.6 kW heating4.2 kW cooling2,214 kWh/yr | 1.5 | $731 |
Heat pumps similar to the Midea MWFF39H
Technically comparable registrations: same configuration and type, capacity within 12%.
| Model | Stars | Est. cost / yr | Compare |
|---|---|---|---|
| Kaden KW123.6 kW heating3.9 kW cooling2,324 kWh/yr | 1.5 | $767 | |
| Gree GJH12AG-K6NRNG1A3.6 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 | |
| Westinghouse WWH39HWC3.5 kW heating3.9 kW cooling2,316 kWh/yr | 2 | $764 | |
| Westinghouse WWH39HWA3.6 kW heating3.9 kW cooling2,324 kWh/yr | 1.5 | $767 | |
| Gree GJH12AG-K6NRND6A3.6 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 | |
| Kelvinator WH393.6 kW heating3.9 kW cooling2,324 kWh/yr | 1.5 | $767 |
Compare MWFF39H with another model
Midea MWFF39H specifications
- Type
- Reverse cycle
- Configuration
- Window / wall
- Air distribution
- Non-ducted
- Indoor unit
- –
- Rated cooling capacity (35 °C)
- 3.90 kW
- Cooling power input
- 1.10 kW
- Rated heating capacity (7 °C)
- 3.50 kW
- Heating power input
- 1.02 kW
- EER, full load (tested)
- 3.28
- COP, full load (tested)
- 3.26
- Rated AEER
- 3.54
- Rated ACOP
- 3.43
- Standby power (PIA)
- 0.5 W
- Compressor
- Fixed speed
- Refrigerant
- R32
- Power supply
- Single phase
- Indoor sound power
- 57.1 dB(A)
- Outdoor sound power
- 67.3 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.
Midea MWFF39H 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 | – | – | 702 | 627 |
| Coldresidential | residential | 2.0 | 0.5 | 301 | 2,015 |
| Mixedcommercial | commercial | – | – | 867 | 327 |
| Mixedresidential | residential | 2.0 | 0.5 | 457 | 773 |
| Hotcommercial | commercial | – | – | 1,879 | 64 |
| Hotresidential | residential | 2.0 | 1.0 | 1,363 | 105 |
Part-load test points (6 values)
- h__h2_full_cap_power_rated
- 893 W
- h__h3_have_full_cap_results
- No
- h__h2_full_cap_heat_cap_rated
- 2129 W
- c__low_temp_full_cap_power_rated
- 1000 W
- c__low_temp_have_full_cap_results
- Yes
- c__low_temp_full_cap_cooling_cap_rated
- 4167 W
New Zealand E3 registration details
- Registration number
- AAC8248
- GEMS registration id
- 161685
- Status
- approved, available (self-reported)
- Registration expires
- 20 May 2029
- Registered for sale in
- Australia, Fiji, 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 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.