Mitsubishi Heavy Industries 3.5kW Diamond Flagship Split System (SRK35ZSX-WF / SRC35ZSX-W)
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The Mitsubishi Heavy Industries SRK35ZSX-WF / SRC35ZSX-W is a flagship Diamond Series split system engineered for discerning UK homeowners. Outputting 3.5kW (12,000 BTU) cooling and 4.3kW (14,600 BTU) heating, it delivers peak climate comfort for spaces up to 35m². Rated at a flawless A+++ for cooling and heating efficiency, it combines advanced inverter compressors with an intelligent human presence sensor that adjusts cooling or switches to standby when the room is empty. Integrated Wi-Fi connects directly to your smartphone through the Smart M-Air application, allowing remote programming and smart home integration with Amazon Alexa and Google Home. Dual-flap air vectoring ensures precision climate control, while high-efficiency allergen filtration traps fine particulate matter and destroys allergens. F-Gas certified installation mandatory.
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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 SRK35ZSX-WF / SRC35ZSX-W is a flagship Diamond Series split system engineered for discerning UK homeowners. Outputting 3.5kW (12,000 BTU) cooling and 4.3kW (14,600 BTU) heating, it delivers peak climate comfort for spaces up to 35m². Rated at a flawless A+++ for cooling and heating efficiency, it combines advanced inverter compressors with an intelligent human presence sensor that adjusts cooling or switches to standby when the room is empty. Integrated Wi-Fi connects directly to your smartphone through the Smart M-Air application, allowing remote programming and smart home integration with Amazon Alexa and Google Home. Dual-flap air vectoring ensures precision climate control, while high-efficiency allergen filtration traps fine particulate matter and destroys allergens. F-Gas certified installation mandatory.
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
£867
This AC / season
£289
You save / season
£578
~67% less electricity
| Heating method | Electricity / season | Cost / season | Efficiency | Summer cooling |
|---|---|---|---|---|
| This heat-pump AC | 1070 kWh | £289 | Up to 300% | |
| Plug-in electric heater | 3209 kWh | £867 | 100% | |
| Electric storage heater | 3209 kWh | £867 | 100% |
Heat output estimated from this unit's 14,600 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 →