
Hisense X4 Series 5.4kW Wall Split System
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Retail prices include VAT.
For larger living spaces, the Hisense X4 Series 5.4kW split system offers robust performance and exceptional versatility. This high-capacity unit is designed to handle larger rooms or open-plan areas up to 50m², providing rapid cooling and efficient heating. The X4 series is packed with features, including a 4-in-1 Catechin filter for superior air purification and Self-Clean Pro technology, which keeps the internal components clean and free from mould. With its 4D Auto Swing functionality, the unit ensures even air distribution throughout the entire room, eliminating hot or cold spots. The system is fully compatible with the ConnectLife app, allowing for seamless smart home integration and remote control. Whether you are looking to maintain a comfortable temperature in a large lounge or a busy family area, the X4 Series provides the power and reliability you need. Its energy-efficient design helps keep running costs low, making it a smart choice for larger homes requiring consistent, year-round climate control.
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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
Technical documents & videos
More from Hisense →Official Hisense manual
The manufacturer's PDF for this model is being sourced and will be downloadable here.
Full Specifications
Description
For larger living spaces, the Hisense X4 Series 5.4kW split system offers robust performance and exceptional versatility. This high-capacity unit is designed to handle larger rooms or open-plan areas up to 50m², providing rapid cooling and efficient heating. The X4 series is packed with features, including a 4-in-1 Catechin filter for superior air purification and Self-Clean Pro technology, which keeps the internal components clean and free from mould. With its 4D Auto Swing functionality, the unit ensures even air distribution throughout the entire room, eliminating hot or cold spots. The system is fully compatible with the ConnectLife app, allowing for seamless smart home integration and remote control. Whether you are looking to maintain a comfortable temperature in a large lounge or a busy family area, the X4 Series provides the power and reliability you need. Its energy-efficient design helps keep running costs low, making it a smart choice for larger homes requiring consistent, year-round climate control.
Compare similar units
Side-by-side specs for other split system ac in a similar BTU range.
Common questions about the Hisense X4 Series 5.4kW Wall Split System
How many BTU is the Hisense X4 Series 5.4kW Wall Split System?
The Hisense X4 Series 5.4kW Wall Split System has a cooling capacity of 18,000 BTU, suitable for Up to 50m².
What room size is the Hisense X4 Series 5.4kW Wall Split System suitable for?
The Hisense X4 Series 5.4kW Wall Split System is recommended for rooms Up to 50m².
Can I install the Hisense X4 Series 5.4kW Wall 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 Hisense X4 Series 5.4kW Wall Split System smart-home compatible?
Yes — the Hisense X4 Series 5.4kW Wall Split System supports Amazon Alexa, Google Home for app and voice control.
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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
173 kWh/yr
EER 11
Standard model
237 kWh/yr
EER 8
Est. saving
£17.48
65 kWh/yr less
Estimate based on the unit's energy-rating efficiency factor and cooling capacity (18,000 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 6 kW heat output used 5 hrs/day over a 150-day UK heating season at £0.27/kWh.
Electric heater / season
£1128
This AC / season
£376
You save / season
£752
~67% less electricity
| Heating method | Electricity / season | Cost / season | Efficiency | Summer cooling |
|---|---|---|---|---|
| This heat-pump AC | 1392 kWh | £376 | Up to 300% | |
| Plug-in electric heater | 4176 kWh | £1128 | 100% | |
| Electric storage heater | 4176 kWh | £1128 | 100% |
Heat output estimated from this unit's 19,000 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 £376/season to heat a room vs £1128 for an electric heater - that's £752 saved. https://stockool.store/products/hisense-x4-series-5-4kw-wall-split-system
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