Mitsubishi Heavy Industries SRK50ZS-WF / SRC50ZS-W Kireia 5.0kW Inverter Split System
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Designed for substantial living zones, open-plan kitchen diners, and commercial workspaces up to 50m², the Mitsubishi Heavy Industries SRK50ZS-WF Kireia unit produces a robust 5.0kW (18,000 BTU) cooling and 5.8kW (19,790 BTU) heating output. Operating on eco-conscious R32 refrigerant with DC Inverter control, it delivers rapid climate adjustment with remarkable A++ seasonal energy efficiency. Standard features include factory-integrated Smart M-Air Wi-Fi for intuitive smartphone control, comprehensive weekly timers, and voice assistant automation. The advanced Allergen Clear operation neutralises microbial organisms in under 90 minutes, while intelligent louvre oscillation ensures widespread, gentle airflow distribution throughout deeper open interiors. Requires professional F-Gas certified 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
Designed for substantial living zones, open-plan kitchen diners, and commercial workspaces up to 50m², the Mitsubishi Heavy Industries SRK50ZS-WF Kireia unit produces a robust 5.0kW (18,000 BTU) cooling and 5.8kW (19,790 BTU) heating output. Operating on eco-conscious R32 refrigerant with DC Inverter control, it delivers rapid climate adjustment with remarkable A++ seasonal energy efficiency. Standard features include factory-integrated Smart M-Air Wi-Fi for intuitive smartphone control, comprehensive weekly timers, and voice assistant automation. The advanced Allergen Clear operation neutralises microbial organisms in under 90 minutes, while intelligent louvre oscillation ensures widespread, gentle airflow distribution throughout deeper open interiors. Requires professional F-Gas certified installation.
Winter heating cost: this AC vs electric heaters
This unit reverses to heat your room in winter. Based on its 6 kW heat output used 5 hrs/day over a 150-day UK heating season at £0.27/kWh.
Electric heater / season
£1175
This AC / season
£392
You save / season
£783
~67% less electricity
| Heating method | Electricity / season | Cost / season | Efficiency | Summer cooling |
|---|---|---|---|---|
| This heat-pump AC | 1450 kWh | £392 | Up to 300% | |
| Plug-in electric heater | 4350 kWh | £1175 | 100% | |
| Electric storage heater | 4350 kWh | £1175 | 100% |
Heat output estimated from this unit's 19,790 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 →