Haier 3U55S2SR5FA 5.5kW Multi-Split Outdoor Unit
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Retail prices include VAT.
The Haier 3U55S2SR5FA multi-split outdoor heat pump condenser provides reliable, energy-efficient heating and cooling for up to three independent indoor rooms from a single exterior unit. Delivering a nominal 5.5kW cooling capacity and 6.8kW heating output, this system utilizes eco-friendly R32 refrigerant alongside advanced DC inverter technology to reduce running costs throughout the UK seasons. It is fully compatible with Haier Expert, Flexis, Revive, and compact cassette indoor units featuring integrated Wi-Fi and hOn smart controls. Ideal for multi-room UK residential homes, small offices, or ground-floor expansions where quiet, discreet outdoor equipment is required without cluttering garden or patio spaces.
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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 Haier 3U55S2SR5FA multi-split outdoor heat pump condenser provides reliable, energy-efficient heating and cooling for up to three independent indoor rooms from a single exterior unit. Delivering a nominal 5.5kW cooling capacity and 6.8kW heating output, this system utilizes eco-friendly R32 refrigerant alongside advanced DC inverter technology to reduce running costs throughout the UK seasons. It is fully compatible with Haier Expert, Flexis, Revive, and compact cassette indoor units featuring integrated Wi-Fi and hOn smart controls. Ideal for multi-room UK residential homes, small offices, or ground-floor expansions where quiet, discreet outdoor equipment is required without cluttering garden or patio spaces.
Winter heating cost: this AC vs electric heaters
This unit reverses to heat your room in winter. Based on its 7 kW heat output used 5 hrs/day over a 150-day UK heating season at £0.27/kWh.
Electric heater / season
£1377
This AC / season
£459
You save / season
£918
~67% less electricity
| Heating method | Electricity / season | Cost / season | Efficiency | Summer cooling |
|---|---|---|---|---|
| This heat-pump AC | 1700 kWh | £459 | Up to 300% | |
| Plug-in electric heater | 5100 kWh | £1377 | 100% | |
| Electric storage heater | 5100 kWh | £1377 | 100% |
Heat output estimated from this unit's 23,200 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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