
Fujitsu Airstage KM Series 2.5kW Wall Mounted Split System
Available to order — dispatched on the lead time shown below.
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Retail prices include VAT.
The Fujitsu Airstage KM Series 2.5kW wall-mounted split system is a premium climate control solution for modern UK homes. Engineered for efficiency and comfort, this unit features advanced inverter technology that maintains your desired temperature with minimal energy consumption. Its sleek, compact design ensures it blends seamlessly into bedrooms or home offices, while the integrated Wi-Fi connectivity allows you to manage your indoor climate from anywhere using your smartphone. The system is exceptionally quiet, making it ideal for overnight use, and its reverse-cycle heat pump capability provides efficient heating during colder months, ensuring year-round comfort. With its high-performance R32 refrigerant, this unit is both environmentally conscious and highly effective, offering rapid cooling and heating to suit your needs. Professional installation is required to ensure optimal performance and safety, making this a reliable, long-term investment for any residential space.
Need it installed?
We'll match you with a local HVAC engineer.
Smart-home ready
Connects natively with the systems below — control by app or voice.
- Free UK mainland delivery on in-stock units
- Manufacturer warranty included
- 14-day returns
Technical documents & videos
More from Fujitsu →Official Fujitsu manual
The manufacturer's PDF for this model is being sourced and will be downloadable here.
Airstage Digital Catalogue
Fujitsu catalogue — open the official flipbook in a new tab.
Full Specifications
Physical dimensions
Exact dimensions for this model are being confirmed with Fujitsu — ask us and we will send the cut sheet with mounting and clearance figures.
Description
The Fujitsu Airstage KM Series 2.5kW wall-mounted split system is a premium climate control solution for modern UK homes. Engineered for efficiency and comfort, this unit features advanced inverter technology that maintains your desired temperature with minimal energy consumption. Its sleek, compact design ensures it blends seamlessly into bedrooms or home offices, while the integrated Wi-Fi connectivity allows you to manage your indoor climate from anywhere using your smartphone. The system is exceptionally quiet, making it ideal for overnight use, and its reverse-cycle heat pump capability provides efficient heating during colder months, ensuring year-round comfort. With its high-performance R32 refrigerant, this unit is both environmentally conscious and highly effective, offering rapid cooling and heating to suit your needs. Professional installation is required to ensure optimal performance and safety, making this a reliable, long-term investment for any residential space.
Compare similar units
Side-by-side specs for other split system ac in a similar BTU range.
Common questions about the Fujitsu Airstage KM Series 2.5kW Wall Mounted Split System
How many BTU is the Fujitsu Airstage KM Series 2.5kW Wall Mounted Split System?
The Fujitsu Airstage KM Series 2.5kW Wall Mounted Split System has a cooling capacity of 9,000 BTU, suitable for Up to 25m².
What room size is the Fujitsu Airstage KM Series 2.5kW Wall Mounted Split System suitable for?
The Fujitsu Airstage KM Series 2.5kW Wall Mounted Split System is recommended for rooms Up to 25m².
Can I install the Fujitsu Airstage KM Series 2.5kW Wall Mounted Split System myself?
No — this unit requires professional installation by a qualified F-gas engineer. Use our Find an Installer service to get matched with a local HVAC professional.
Is the Fujitsu Airstage KM Series 2.5kW Wall Mounted Split System smart-home compatible?
Yes — the Fujitsu Airstage KM Series 2.5kW Wall Mounted Split System supports Google Home, Amazon Alexa for app and voice control.
How long does delivery of the Fujitsu Airstage KM Series 2.5kW Wall Mounted Split System take?
This unit is dispatched in 2-3 working days. Delivery is then 1–2 working days to most UK mainland addresses, and 3–6 working days into the EU.
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Mitsubishi ElectricAnnual energy savings estimate
How much this A++-rated unit could save versus a standard C-rated model, based on your usage.
This unit
73 kWh/yr
EER 13
Standard model
119 kWh/yr
EER 8
Est. saving
£12.33
46 kWh/yr less
Estimate based on the unit's energy-rating efficiency factor and cooling capacity (9,000 BTU). Actual savings vary with room size, climate and usage patterns.
Winter heating cost: this AC vs electric heaters
This unit reverses to heat your room in winter. Based on its 3 kW heat output used 5 hrs/day over a 150-day UK heating season at £0.27/kWh.
Electric heater / season
£593
This AC / season
£198
You save / season
£396
~67% less electricity
| Heating method | Electricity / season | Cost / season | Efficiency | Summer cooling |
|---|---|---|---|---|
| This heat-pump AC | 733 kWh | £198 | Up to 300% | |
| Plug-in electric heater | 2198 kWh | £593 | 100% | |
| Electric storage heater | 2198 kWh | £593 | 100% |
Heat output estimated from this unit's 10,000 BTU/hr rating. A heat pump moves heat (COP ≈ 3), so it uses about a third of the electricity of a direct-electric heater for the same warmth. Actual savings vary with room size, insulation, tariff and usage. See the full comparison →
Share your savings
This heat-pump AC costs only £198/season to heat a room vs £593 for an electric heater - that's £396 saved. https://stockool.store/products/fujitsu-airstage-km-2-5kw-split
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