Australia · costs in AUD
Reverse cycle window / wall air conditioner
Midea MWFF39H Air Conditioner
Midea MWFF39H is a 3.9 kW reverse cycle window / wall air conditioner registered under Australia’s Energy Rating (GEMS) scheme (registration AAC8248).
- Energy rating (cooling)
- 2
- Heating: 0.5
- Annual electricity use
- 1,230 kWh
- 457 cooling + 773 heating
- Estimated running cost
- $394 / year
- $33 / month · $3,936 over 10 years
- Capacity
- 3.9 kW cooling
- 3.5 kW heating
1% less electricity than the median of 16 comparable 3.5 kW reverse cycle window / wall registrations (1,243 kWh a year) in the mixed zone. Uses less than 69% of them.
Across all 3,680 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 mixed zone (Richmond NSW climate: Sydney, Melbourne, Adelaide, Perth). Mixed climate zone shown by default (Sydney, Melbourne, Adelaide, Perth); switch to cold or hot. Cost = kWh × 32c/kWh in AUD; 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 | $741 | $7,411 |
| Mixed zone | 1,230 | $394 | $3,936 |
| Hot zone | 1,468 | $470 | $4,698 |
At 32c/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.
Air conditioners that use less electricity
Same configuration and type, cooling capacity within 12% of 3.9 kW, at least 3% lower annual kWh in the mixed zone.
| Model | Stars | Est. cost / yr | Compare |
|---|---|---|---|
| Midea MWFI36H3.5 kW heating3.6 kW cooling1,002 kWh/yr | 2.5 | $321 |
Air conditioners similar to the Midea MWFF39H
Technically comparable registrations: same configuration and type, capacity within 12%.
| Model | Stars | Est. cost / yr | Compare |
|---|---|---|---|
| Westinghouse WWH39HWA3.6 kW heating3.9 kW cooling1,267 kWh/yr | 1.5 | $405 | |
| Gree GJH12AG-K6NRND6A3.6 kW heating3.9 kW cooling1,267 kWh/yr | 1.5 | $405 | |
| Kelvinator KWH39HRF3.6 kW heating3.9 kW cooling1,267 kWh/yr | 1.5 | $405 | |
| Kelvinator WH393.6 kW heating3.9 kW cooling1,267 kWh/yr | 1.5 | $405 | |
| Kaden KW123.6 kW heating3.9 kW cooling1,267 kWh/yr | 1.5 | $405 | |
| Gree GJH12AG-K6NRNG1A3.6 kW heating3.9 kW cooling1,267 kWh/yr | 1.5 | $405 | |
| TECO TWW40HFWDG3.6 kW heating3.9 kW cooling1,267 kWh/yr | 1.5 | $405 | |
| Westinghouse WWH39HWC3.5 kW heating3.9 kW cooling1,230 kWh/yr | 2 | $394 |
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
Australian GEMS 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: Australian Government Energy Rating (GEMS) registration data, DCCEEW via data.gov.au (CC BY 3.0 AU). Dataset published 19 September 2026; last checked 20 September 2026. How the derived figures are calculated.