Hitachi airHome 400 2.5kW Inverter Wall Mounted Split System
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The Hitachi airHome 400 2.5kW inverter split system brings intelligent, energy-saving climate control to residential and light commercial settings across the UK. Designed for bedrooms, modern home offices, and small lounges up to 25m², it delivers 9,000 BTU of cooling power alongside reliable reverse-cycle heating. Featuring Hitachi's revolutionary FrostWash self-cleaning technology, the indoor unit freezes airborne dust, pollen, and impurities before washing them away automatically, maintaining optimal hygiene and peak performance year after year. The integrated airCloud Go Wi-Fi platform provides complete smartphone management, smart geo-fencing to adjust temperatures before you arrive home, and seamless hands-free control via Amazon Alexa and Google Home. Its sleek, minimalist white chassis blends discretely with British home decor while delivering ultra-quiet sound output down to 20dB(A). Boasting A++ seasonal energy efficiency, this eco-friendly R32 wall-mounted split system is an exceptional long-term investment for year-round domestic climate control.
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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
Specifications
Description
The Hitachi airHome 400 2.5kW inverter split system brings intelligent, energy-saving climate control to residential and light commercial settings across the UK. Designed for bedrooms, modern home offices, and small lounges up to 25m², it delivers 9,000 BTU of cooling power alongside reliable reverse-cycle heating. Featuring Hitachi's revolutionary FrostWash self-cleaning technology, the indoor unit freezes airborne dust, pollen, and impurities before washing them away automatically, maintaining optimal hygiene and peak performance year after year. The integrated airCloud Go Wi-Fi platform provides complete smartphone management, smart geo-fencing to adjust temperatures before you arrive home, and seamless hands-free control via Amazon Alexa and Google Home. Its sleek, minimalist white chassis blends discretely with British home decor while delivering ultra-quiet sound output down to 20dB(A). Boasting A++ seasonal energy efficiency, this eco-friendly R32 wall-mounted split system is an exceptional long-term investment for year-round domestic climate control.
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
£688
This AC / season
£229
You save / season
£459
~67% less electricity
| Heating method | Electricity / season | Cost / season | Efficiency | Summer cooling |
|---|---|---|---|---|
| This heat-pump AC | 850 kWh | £229 | Up to 300% | |
| Plug-in electric heater | 2550 kWh | £688 | 100% | |
| Electric storage heater | 2550 kWh | £688 | 100% |
Heat output estimated from this unit's 11,600 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 →