Sinclair Keyon SIH-18BIK 4.6kW Inverter Wall Mounted Split System
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Engineered for open-plan living areas, commercial retail floors, and expansive master suites, the Sinclair Keyon SIH-18BIK wall split air conditioner delivers 4.6kW (16,000 BTU) of dependable cooling. Operating on an advanced DC inverter compressor, it minimises electrical load fluctuations to achieve notable running cost reductions with an A++ energy classification. In addition to potent chilling performance, the reverse-cycle heat pump outputs 5.2kW of clean warmth, providing year-round thermal balance across UK seasonal variations. Integrated Wi-Fi ensures total remote control through dedicated mobile apps, easily coordinating with popular digital assistants for voice activation. The unit includes an intuitive I Feel remote sensor, ensuring that room conditions are measured where occupants sit rather than up on the wall. Its durable outdoor casing incorporates anti-corrosion condenser fins, delivering extended operational life even in damp British climates.
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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
Full Specifications
Description
Engineered for open-plan living areas, commercial retail floors, and expansive master suites, the Sinclair Keyon SIH-18BIK wall split air conditioner delivers 4.6kW (16,000 BTU) of dependable cooling. Operating on an advanced DC inverter compressor, it minimises electrical load fluctuations to achieve notable running cost reductions with an A++ energy classification. In addition to potent chilling performance, the reverse-cycle heat pump outputs 5.2kW of clean warmth, providing year-round thermal balance across UK seasonal variations. Integrated Wi-Fi ensures total remote control through dedicated mobile apps, easily coordinating with popular digital assistants for voice activation. The unit includes an intuitive I Feel remote sensor, ensuring that room conditions are measured where occupants sit rather than up on the wall. Its durable outdoor casing incorporates anti-corrosion condenser fins, delivering extended operational life even in damp British climates.
Winter heating cost: this AC vs electric heaters
This unit reverses to heat your room in winter. Based on its 5 kW heat output used 5 hrs/day over a 150-day UK heating season at £0.27/kWh.
Electric heater / season
£1050
This AC / season
£350
You save / season
£700
~67% less electricity
| Heating method | Electricity / season | Cost / season | Efficiency | Summer cooling |
|---|---|---|---|---|
| This heat-pump AC | 1297 kWh | £350 | Up to 300% | |
| Plug-in electric heater | 3891 kWh | £1050 | 100% | |
| Electric storage heater | 3891 kWh | £1050 | 100% |
Heat output estimated from this unit's 17,700 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 →