LG Multi F 2-Way Multi Split Outdoor Unit 4.1kW
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The LG Multi F 2-Way outdoor unit is a highly efficient solution for residential or small commercial properties requiring climate control in two separate zones. By utilising a single outdoor compressor, this system significantly reduces the external footprint compared to installing multiple individual units. Engineered with LG’s advanced Smart Inverter technology, it provides precise temperature regulation while maintaining whisper-quiet operation and exceptional energy efficiency. This unit is fully compatible with a range of LG indoor wall-mounted or cassette units, allowing for a bespoke interior aesthetic. It is an ideal choice for homeowners looking to heat and cool two bedrooms or a living area and home office simultaneously. With its robust R32 refrigerant system, it offers a sustainable and powerful performance, ensuring year-round comfort regardless of the UK weather. Professional installation is required to ensure optimal performance and to maintain the manufacturer's warranty.
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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
Downloads & specs
More from LG →Manufacturer instructions
Installation of the LG Multi F outdoor unit must be performed by a qualified professional in accordance with local regulations and F-gas requirements. The unit should be mounted on a level, vibration-free surface with adequate clearance for airflow. Refrigerant piping must be installed using high-quality copper tubing, properly insulated, and vacuum-tested to ensure system integrity before opening service valves. Electrical connections require a dedicated power supply, with wiring routed according to the provided terminal block diagrams. Ensure all communication cables between the outdoor and indoor units are correctly terminated. After installation, perform a leak test and purge the lines. Upon first power-on, verify the system operation via the indoor unit controls. Always consult the specific installation manual provided with your unit for precise torque settings and electrical specifications.
Fixed units must be installed by a qualified F-gas engineer. Find an installer — we'll match you with a local HVAC professional.
Full Specifications
Description
The LG Multi F 2-Way outdoor unit is a highly efficient solution for residential or small commercial properties requiring climate control in two separate zones. By utilising a single outdoor compressor, this system significantly reduces the external footprint compared to installing multiple individual units. Engineered with LG’s advanced Smart Inverter technology, it provides precise temperature regulation while maintaining whisper-quiet operation and exceptional energy efficiency. This unit is fully compatible with a range of LG indoor wall-mounted or cassette units, allowing for a bespoke interior aesthetic. It is an ideal choice for homeowners looking to heat and cool two bedrooms or a living area and home office simultaneously. With its robust R32 refrigerant system, it offers a sustainable and powerful performance, ensuring year-round comfort regardless of the UK weather. Professional installation is required to ensure optimal performance and to maintain the manufacturer's warranty.
Compare similar units
Side-by-side specs for other multi-split system ac in a similar BTU range.
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BroughtonReznor
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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
114 kWh/yr
EER 13
Standard model
185 kWh/yr
EER 8
Est. saving
£19.17
71 kWh/yr less
Estimate based on the unit's energy-rating efficiency factor and cooling capacity (14,000 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 5 kW heat output used 5 hrs/day over a 150-day UK heating season at £0.27/kWh.
Electric heater / season
£950
This AC / season
£317
You save / season
£633
~67% less electricity
| Heating method | Electricity / season | Cost / season | Efficiency | Summer cooling |
|---|---|---|---|---|
| This heat-pump AC | 1172 kWh | £317 | Up to 300% | |
| Plug-in electric heater | 3517 kWh | £950 | 100% | |
| Electric storage heater | 3517 kWh | £950 | 100% |
Heat output estimated from this unit's 16,000 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 →
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