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
In stock now — closest alternatives
This unit is out of stock. These ship now, matched on cooling capacity and price.
Mitsubishi Heavy Industries 2.5kW Avanti Premium Wall Mounted Split System (SRK25ZS-WF / SRC25ZS-W)
Gree Amber 2.5kW Inverter Wall Split
Gree Sapphire 2.5kW Ultra-Quiet Inverter
Toshiba Haori 2.5kW Inverter Wall Mounted Split System (RAS-B10N4KVRG-E / RAS-10J2AVSG-E1)
Technical documents & videos
More from Mitsubishi Heavy Industries →Full Specifications
Physical dimensions
Exact dimensions for this model are being confirmed with Mitsubishi Heavy Industries — ask us and we will send the cut sheet with mounting and clearance figures.
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.
Compare similar units
Side-by-side specs for other split system ac in a similar BTU range.
Common questions about the Mitsubishi Heavy Industries SRK25ZS-WF / SRC25ZS-W Kireia 2.5kW Inverter Split System
How many BTU is the Mitsubishi Heavy Industries SRK25ZS-WF / SRC25ZS-W Kireia 2.5kW Inverter Split System?
The Mitsubishi Heavy Industries SRK25ZS-WF / SRC25ZS-W Kireia 2.5kW Inverter Split System has a cooling capacity of 9,000 BTU, suitable for Up to 25m².
What room size is the Mitsubishi Heavy Industries SRK25ZS-WF / SRC25ZS-W Kireia 2.5kW Inverter Split System suitable for?
The Mitsubishi Heavy Industries SRK25ZS-WF / SRC25ZS-W Kireia 2.5kW Inverter Split System is recommended for rooms Up to 25m².
Can I install the Mitsubishi Heavy Industries SRK25ZS-WF / SRC25ZS-W Kireia 2.5kW Inverter 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 Mitsubishi Heavy Industries SRK25ZS-WF / SRC25ZS-W Kireia 2.5kW Inverter Split System smart-home compatible?
Yes — the Mitsubishi Heavy Industries SRK25ZS-WF / SRC25ZS-W Kireia 2.5kW Inverter Split System supports Amazon Alexa, Google Home for app and voice control.
How long does delivery of the Mitsubishi Heavy Industries SRK25ZS-WF / SRC25ZS-W Kireia 2.5kW Inverter Split System take?
The Mitsubishi Heavy Industries SRK25ZS-WF / SRC25ZS-W Kireia 2.5kW Inverter Split System is currently out of stock. Join the stock alert and we will email you the moment it is available.
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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
68 kWh/yr
EER 14
Standard model
119 kWh/yr
EER 8
Est. saving
£13.74
51 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
£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 →
Share your savings
This heat-pump AC costs only £216/season to heat a room vs £648 for an electric heater - that's £432 saved. https://stockool.store/products/mhi-srk25zs-wf-kireia-2-5kw-inverter-split
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