Mitsubishi Heavy Industries SRK25ZS-WF / SRC25ZS-W Kireia 2.5kW Inverter Split System
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The Mitsubishi Heavy Industries SRK25ZS-WF Kireia split system delivers premium climate comfort engineered with renowned Japanese precision. Providing a nominal 2.5kW (9,000 BTU) cooling output and 3.2kW (10,920 BTU) heating output, this system is ideal for UK bedrooms, modern home offices, and nursery spaces up to 25m². Powered by advanced R32 inverter technology, it achieves an exceptional A+++ seasonal energy efficiency rating to keep running costs ultra-low year-round. Built-in Smart M-Air Wi-Fi control allows you to monitor room temperatures and set schedules directly from your smartphone or via voice assistants. Features include MHI's proprietary Allergen Clear filtration system that neutralises airborne viruses, bacteria, and dust, alongside 3D Auto airflow and whisper-quiet operation as low as 19 dB(A). Requires F-Gas certified professional installation.
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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 Mitsubishi Heavy Industries SRK25ZS-WF Kireia split system delivers premium climate comfort engineered with renowned Japanese precision. Providing a nominal 2.5kW (9,000 BTU) cooling output and 3.2kW (10,920 BTU) heating output, this system is ideal for UK bedrooms, modern home offices, and nursery spaces up to 25m². Powered by advanced R32 inverter technology, it achieves an exceptional A+++ seasonal energy efficiency rating to keep running costs ultra-low year-round. Built-in Smart M-Air Wi-Fi control allows you to monitor room temperatures and set schedules directly from your smartphone or via voice assistants. Features include MHI's proprietary Allergen Clear filtration system that neutralises airborne viruses, bacteria, and dust, alongside 3D Auto airflow and whisper-quiet operation as low as 19 dB(A). Requires F-Gas certified professional installation.
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
£648
This AC / season
£216
You save / season
£432
~67% less electricity
| Heating method | Electricity / season | Cost / season | Efficiency | Summer cooling |
|---|---|---|---|---|
| This heat-pump AC | 800 kWh | £216 | Up to 300% | |
| Plug-in electric heater | 2400 kWh | £648 | 100% | |
| Electric storage heater | 2400 kWh | £648 | 100% |
Heat output estimated from this unit's 10,920 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 →
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