Daikin Alira X 2.5 kW split system
$1,500–$2,500
estimated installed price
Cooling
2.5 kW
5.5 stars
Heating
3.2 kW
4 stars
Indoor noise
57
dB(A) sound power, quieter than 11% of its size
Running cost
$147
a year, average zone, at 33c/kWh
Short answer
The Daikin Alira X 2.5 kW split system (RXM25AVMA / FTXM25AVMA) is a 2.5 kW reverse cycle wall split rated 5.5 stars for cooling and 4 stars for heating in the average climate zone. Installed, expect $1,500 to $2,500; the label's figures put running costs near $147 a year in an average-zone home.
Prices are estimates, not quotes (how we estimate them). Rebate rules checked September 2026.
Compare 3 quotes for my houseFull specifications
- Brand
- Daikin
- Series
- Daikin Alira X
- Model numbers
- RXM25AVMA / FTXM25AVMA
- Type
- Wall split, reverse cycle (heats and cools)
- Cooling capacity
- 2.5 kW
- Cooling power input
- 0.47 kW
- Heating capacity
- 3.2 kW
- Heating power input
- 0.57 kW
- Annual efficiency, cooling (AEER)
- 5.27
- Annual efficiency, heating (ACOP)
- 5.57
- Indoor sound power
- 57 dB(A)
- Outdoor sound power
- 59 dB(A)
- Refrigerant
- R32
- Power supply
- Single-phase
- Demand response capable
- Yes
- Country of manufacture
- Thailand
- Energy Rating registration
- AAC10031
- Registration valid until
- 2031-04-06
Star ratings and running cost by climate
The Zoned Energy Rating Label rates each unit for three climates. Annual energy is the label's estimate for typical use in that zone; the cost applies 33c/kWh, around the 2026–27 default electricity offer. Use the running cost calculator for your own hours and tariff.
| Climate zone | Cooling stars | Heating stars | Energy a year | Cost a year |
|---|---|---|---|---|
| HotBrisbane, Darwin | 6.5 stars | 4.5 stars | 443 kWh 397 cooling, 46 heating | $146 |
| AverageSydney, Adelaide, Perth | 5.5 stars | 4 stars | 446 kWh 139 cooling, 307 heating | $147 |
| ColdCanberra, Hobart, Melbourne | 6 stars | 3.5 stars | 888 kWh 88 cooling, 800 heating | $293 |
How it compares with other 2.5 kW units
- Cooling stars (average zone): 5.5 against a median of 5 across 247 2.5 kW wall split units, better than 79% of them.
- Indoor sound power: 57 dB(A) against a median of 54.5 dB(A), quieter than 11%.
- Estimated installed price for this size: $1,500 to $2,500. Brand and install difficulty move it within that band.
See the quietest and most efficient rankings.
Other sizes in the Daikin Alira X range
Alternatives at 2.5 kW from other brands
AUX 2.6 kW split system
ASW-H27A4/CAR3DI
7 stars cooling · 52.4 dB(A)
Rinnai JX Series 2.6 kW split system
HONRJX25/HINRJX25
7 stars cooling · 52.4 dB(A)
Rinnai T Series 2.6 kW split system
HONRT25B / HINRT25B
7 stars cooling · 54.3 dB(A)
Hisense Air Q 2.5 kW split system
HAWU9KR
7 stars cooling · 59.2 dB(A)
Haier 600 Series Q 2.5 kW split system
1U25MAEFRA / AS25QCEHRA
7 stars cooling · 61.9 dB(A)
ActronAir Serene 2.6 kW split system
WRC-026CS / WRE-026CS
6.5 stars cooling · 50 dB(A)
FAQ
Daikin RXM25AVMA / FTXM25AVMA: common questions
How much does the Daikin Alira X 2.5 kW split system cost installed?
Typically $1,500 to $2,500 supplied and installed in 2026 for a standard job at this size. Longer pipe runs, a new circuit, a second storey or removing an old unit add to it. Get up to three local quotes for your actual install.
How much does the Daikin Alira X 2.5 kW split system cost to run?
Using the energy label's annual figures at 33c/kWh: about $146 a year in a hot zone, $147 in an average zone and $293 in a cold zone. The label assumes typical use; yours will differ with hours, set temperature and insulation.
Where is the Daikin RXM25AVMA / FTXM25AVMA made?
The Energy Rating register lists the country of manufacture as Thailand.
Is the Daikin Alira X 2.5 kW split system quiet?
Its registered indoor sound power is 57 dB(A), against a median of 54.5 dB(A) for 2.5 kW wall split units, so it's quieter than about 11% of them. Brochures quote a lower sound pressure figure on the lowest fan speed; the register measures every model the same way.
Sources
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