
Samsung FJM 2-Port Multi Split Outdoor Unit 4.0kW
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Retail prices include VAT.
The Samsung FJM 4.0kW dual-zone outdoor unit is the perfect solution for homeowners looking to manage the climate in two separate rooms without the clutter of multiple outdoor compressors. Designed for efficiency and reliability, this unit features advanced inverter technology that adjusts power consumption based on real-time demand, significantly reducing energy bills. Its compact, lightweight design makes it an ideal choice for properties with limited exterior space, such as apartments or terraced houses. Whether you are looking to cool a home office and a bedroom simultaneously or provide heating during the colder months, this versatile system delivers consistent, quiet performance. As a heat-pump enabled unit, it provides year-round comfort, ensuring your living spaces remain at the perfect temperature regardless of the season. This unit is a professional-grade choice for those seeking a discreet, high-performance multi-room climate control system that integrates seamlessly into modern UK homes.
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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
The Samsung FJM 4.0kW dual-zone outdoor unit is the perfect solution for homeowners looking to manage the climate in two separate rooms without the clutter of multiple outdoor compressors. Designed for efficiency and reliability, this unit features advanced inverter technology that adjusts power consumption based on real-time demand, significantly reducing energy bills. Its compact, lightweight design makes it an ideal choice for properties with limited exterior space, such as apartments or terraced houses. Whether you are looking to cool a home office and a bedroom simultaneously or provide heating during the colder months, this versatile system delivers consistent, quiet performance. As a heat-pump enabled unit, it provides year-round comfort, ensuring your living spaces remain at the perfect temperature regardless of the season. This unit is a professional-grade choice for those seeking a discreet, high-performance multi-room climate control system that integrates seamlessly into modern UK homes.
Compare similar units
Side-by-side specs for other multi-split system ac in a similar BTU range.
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Stiebel Eltron
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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
111 kWh/yr
EER 13
Standard model
180 kWh/yr
EER 8
Est. saving
£18.70
69 kWh/yr less
Estimate based on the unit's energy-rating efficiency factor and cooling capacity (13,650 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 4 kW heat output used 5 hrs/day over a 150-day UK heating season at £0.27/kWh.
Electric heater / season
£850
This AC / season
£283
You save / season
£567
~67% less electricity
| Heating method | Electricity / season | Cost / season | Efficiency | Summer cooling |
|---|---|---|---|---|
| This heat-pump AC | 1050 kWh | £283 | Up to 300% | |
| Plug-in electric heater | 3150 kWh | £850 | 100% | |
| Electric storage heater | 3150 kWh | £850 | 100% |
Heat output estimated from this unit's 14,330 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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