Mitsubishi Heavy Industries SRK35ZS-WF / SRC35ZS-W Kireia 3.5kW Inverter Split System
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Offering a balanced combination of elegant Italian styling and heavy-duty engineering, the Mitsubishi Heavy Industries SRK35ZS-WF 3.5kW (12,000 BTU) Kireia split system delivers high-efficiency cooling and powerful 4.0kW (13,650 BTU) heating. Designed for medium-sized UK lounges, master bedroom suites, and retail office areas up to 35m², this R32 inverter system reaches an outstanding A+++ energy efficiency rating. Built-in Smart M-Air Wi-Fi functionality makes remote programming effortless across iOS and Android devices, as well as smart home voice setups. The integrated allergen filter and photocatalytic deodorising filter work continuously to destroy airborne allergens, fine pollen, and household odours, while 3D Auto multi-vane louvres create an even temperature envelope without cold draughts. Certified F-Gas installation required.
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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
Offering a balanced combination of elegant Italian styling and heavy-duty engineering, the Mitsubishi Heavy Industries SRK35ZS-WF 3.5kW (12,000 BTU) Kireia split system delivers high-efficiency cooling and powerful 4.0kW (13,650 BTU) heating. Designed for medium-sized UK lounges, master bedroom suites, and retail office areas up to 35m², this R32 inverter system reaches an outstanding A+++ energy efficiency rating. Built-in Smart M-Air Wi-Fi functionality makes remote programming effortless across iOS and Android devices, as well as smart home voice setups. The integrated allergen filter and photocatalytic deodorising filter work continuously to destroy airborne allergens, fine pollen, and household odours, while 3D Auto multi-vane louvres create an even temperature envelope without cold draughts. Certified F-Gas installation required.
Winter heating cost: this AC vs electric heaters
This unit reverses to heat your room in winter. Based on its 4 kW heat output used 5 hrs/day over a 150-day UK heating season at £0.27/kWh.
Electric heater / season
£810
This AC / season
£270
You save / season
£540
~67% less electricity
| Heating method | Electricity / season | Cost / season | Efficiency | Summer cooling |
|---|---|---|---|---|
| This heat-pump AC | 1000 kWh | £270 | Up to 300% | |
| Plug-in electric heater | 3000 kWh | £810 | 100% | |
| Electric storage heater | 3000 kWh | £810 | 100% |
Heat output estimated from this unit's 13,650 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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