LG MU2R15.UL0 4.1kW Multi-Split Outdoor Unit
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The LG MU2R15.UL0 is a high-performance 4.1kW multi-split outdoor unit designed to power up to two indoor units simultaneously. Engineered with LG’s advanced dual inverter compressor technology, this unit provides exceptional energy efficiency and whisper-quiet operation, making it an ideal choice for residential bedrooms or small home offices. Its compact design allows for flexible installation in tight spaces while maintaining robust cooling and heating performance. By using a single outdoor unit, you can maintain a clean exterior aesthetic for your property without compromising on individual climate control for each room. This unit is fully compatible with R32 refrigerant, ensuring a lower environmental impact. Whether you are looking to upgrade your home comfort or provide efficient climate management for a small commercial space, the MU2R15.UL0 offers the reliability and precision that LG is renowned for in the UK market.
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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
The LG MU2R15.UL0 is a professional-grade multi-split outdoor unit that must be installed by an F-GAS certified engineer to comply with safety regulations and maintain the manufacturer's warranty. Installation involves mounting the outdoor unit on a level, vibration-free surface, such as a wall bracket or ground stand, ensuring adequate clearance for airflow. Refrigerant piping must be connected between the outdoor unit and up to two indoor units, followed by a vacuum purge of the lines to remove moisture. Electrical connections must be made according to local wiring codes, ensuring proper grounding. Once installed, the system requires a pressure test for leaks before the refrigerant is released. First power-on should only occur after a full system check. Always consult the specific installation manual provided with the unit for precise torque settings and wiring diagrams.
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 MU2R15.UL0 is a high-performance 4.1kW multi-split outdoor unit designed to power up to two indoor units simultaneously. Engineered with LG’s advanced dual inverter compressor technology, this unit provides exceptional energy efficiency and whisper-quiet operation, making it an ideal choice for residential bedrooms or small home offices. Its compact design allows for flexible installation in tight spaces while maintaining robust cooling and heating performance. By using a single outdoor unit, you can maintain a clean exterior aesthetic for your property without compromising on individual climate control for each room. This unit is fully compatible with R32 refrigerant, ensuring a lower environmental impact. Whether you are looking to upgrade your home comfort or provide efficient climate management for a small commercial space, the MU2R15.UL0 offers the reliability and precision that LG is renowned for in the UK market.
Compare similar units
Side-by-side specs for other multi-split system ac in a similar BTU range.
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Stiebel Eltron
BroughtonReznor
Omega Altalfa
ClarkeBeldrayVYtronIXCostwaySuntec
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Senville
Comfee
AUX
Whynter
Viessmann
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Aermec
NIBE
Sinclair
Blyss
Fral
Whirlpool
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Daitsu
Dimplex
Bosch
Vaillant
Olimpia Splendid
Carrier
Toshiba
Mitsubishi Heavy Industries
DeLonghi
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Meaco
AEGDevola
FujitsuelectriQSamsung
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Haier
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Gree
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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 4 kW heat output used 5 hrs/day over a 150-day UK heating season at £0.27/kWh.
Electric heater / season
£890
This AC / season
£297
You save / season
£593
~67% less electricity
| Heating method | Electricity / season | Cost / season | Efficiency | Summer cooling |
|---|---|---|---|---|
| This heat-pump AC | 1099 kWh | £297 | Up to 300% | |
| Plug-in electric heater | 3297 kWh | £890 | 100% | |
| Electric storage heater | 3297 kWh | £890 | 100% |
Heat output estimated from this unit's 15,000 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 £297/season to heat a room vs £890 for an electric heater - that's £593 saved. https://stockool.store/products/lg-mu2r15-ul0-4-1kw-multi-split-outdoor-unit
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