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LG MU5R30.U40 Five Zone Multi-Split Outdoor Unit
LG

LG MU5R30.U40 Five Zone Multi-Split Outdoor Unit

In StockEnergy A++
£1,856.04£2,450.00Save £593.96

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Dispatched in 5-7 working days
UK-Wide Delivery
Free UK mainland delivery on in-stock units

Retail prices include VAT.

For those requiring a comprehensive whole-house climate solution, the LG MU5R30.U40 Five Zone Multi-Split Outdoor Unit stands as the pinnacle of residential air conditioning technology. This powerful 8.8kW (31,000 BTU) unit can support up to five separate indoor units, allowing for tailored comfort in every corner of a large property, from the kitchen and lounge to multiple upstairs bedrooms. Despite its high capacity, the MU5R30 remains remarkably energy-efficient, utilising LG’s signature Dual Inverter technology to precisely match the cooling or heating load of the active zones. This prevents wasted energy and ensures whisper-quiet operation that won't disturb you or your neighbours. The system is fully compatible with the LG ThinQ ecosystem, enabling smart scheduling and energy monitoring through a single app. It is particularly well-suited for UK homeowners undertaking major renovations or new builds who want a discreet, professional-grade HVAC system without the clutter of multiple outdoor condensers. With its ability to provide reliable heating even in low outdoor temperatures, it serves as an excellent year-round heat pump solution, reducing reliance on traditional gas boilers and contributing to a more sustainable home.

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Smart-home ready

Connects natively with the systems below — control by app or voice.

Amazon AlexaGoogle Home
  • Free UK mainland delivery on in-stock units
  • Manufacturer warranty included
  • 14-day returns

Full Specifications

Cooling Capacity31,000 BTU
Recommended Room SizeUp to 110m² total
Energy RatingA++
Smart HomeAmazon Alexa, Google Home
Noise Level—
CategoryMulti-Split System AC
SKUMU5R30.U40

Description

For those requiring a comprehensive whole-house climate solution, the LG MU5R30.U40 Five Zone Multi-Split Outdoor Unit stands as the pinnacle of residential air conditioning technology. This powerful 8.8kW (31,000 BTU) unit can support up to five separate indoor units, allowing for tailored comfort in every corner of a large property, from the kitchen and lounge to multiple upstairs bedrooms. Despite its high capacity, the MU5R30 remains remarkably energy-efficient, utilising LG’s signature Dual Inverter technology to precisely match the cooling or heating load of the active zones. This prevents wasted energy and ensures whisper-quiet operation that won't disturb you or your neighbours. The system is fully compatible with the LG ThinQ ecosystem, enabling smart scheduling and energy monitoring through a single app. It is particularly well-suited for UK homeowners undertaking major renovations or new builds who want a discreet, professional-grade HVAC system without the clutter of multiple outdoor condensers. With its ability to provide reliable heating even in low outdoor temperatures, it serves as an excellent year-round heat pump solution, reducing reliance on traditional gas boilers and contributing to a more sustainable home.

Compare similar units

Side-by-side specs for other multi-split system ac in a similar BTU range.

Cooling Capacity
31,000 BTU
32,000 BTU
30,000 BTU
30,000 BTU
Room Size
Up to 110m² total
Up to 120m² total
Up to 110m²
Up to 100m² total
Energy Rating
A++
A+
A++
A++
Heating Capable
Yes (heat pump)
Yes (heat pump)
Yes (heat pump)
Yes (heat pump)
Smart Home
Amazon Alexa, Google Home
Google Home, Amazon Alexa
Google Home, Amazon Alexa
Amazon Alexa, Google Home
Stock
In Stock
In Stock
In Stock
In Stock
Price inc VAT
£1,856.04
£2,805.00
£3,134.33
£4,253.73

Annual energy savings estimate

How much this A++-rated unit could save versus a standard C-rated model, based on your usage.

This unit

252 kWh/yr

EER 13

Standard model

409 kWh/yr

EER 8

Est. saving

£42.46

157 kWh/yr less

Estimate based on the unit's energy-rating efficiency factor and cooling capacity (31,000 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 10 kW heat output used 5 hrs/day over a 150-day UK heating season at £0.27/kWh.

Electric heater / season

£2018

This AC / season

£673

You save / season

£1345

~67% less electricity

Heating methodElectricity / seasonCost / seasonEfficiencySummer cooling
This heat-pump AC2491 kWh£673Up to 300%
Plug-in electric heater7474 kWh£2018100%
Electric storage heater7474 kWh£2018100%

Heat output estimated from this unit's 34,000 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 £673/season to heat a room vs £2018 for an electric heater - that's £1345 saved. https://stockool.store/products/lg-mu5r30-u40-five-zone-outdoor-unit

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