LG Multi Split 4-Port Outdoor Condenser MU4R25.U40 (7.0 kW)
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The LG MU4R25.U40 is a high-performance 4-zone multi split outdoor heat pump condenser, engineered to manage cooling and heating across up to four individual rooms simultaneously. Delivering 7.0 kW (24,000 BTU) cooling output and 7.8 kW of high-efficiency heating, this unit operates with R32 refrigerant to satisfy modern UK eco-design building standards. Its electrostatically coated steel body offers robust corrosion protection against harsh weather, while integrated anti-vibration damping ensures ultra-quiet suburban performance. With independent multi-circuit control, homeowners can independently condition bedrooms, lounge areas, and home workspaces. When paired with smart LG indoor units, the system unlocks smart home convenience with full LG ThinQ app monitoring and voice commands through Alexa and Google Home.
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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 LG MU4R25.U40 is a high-performance 4-zone multi split outdoor heat pump condenser, engineered to manage cooling and heating across up to four individual rooms simultaneously. Delivering 7.0 kW (24,000 BTU) cooling output and 7.8 kW of high-efficiency heating, this unit operates with R32 refrigerant to satisfy modern UK eco-design building standards. Its electrostatically coated steel body offers robust corrosion protection against harsh weather, while integrated anti-vibration damping ensures ultra-quiet suburban performance. With independent multi-circuit control, homeowners can independently condition bedrooms, lounge areas, and home workspaces. When paired with smart LG indoor units, the system unlocks smart home convenience with full LG ThinQ app monitoring and voice commands through Alexa and Google Home.
Winter heating cost: this AC vs electric heaters
This unit reverses to heat your room in winter. Based on its 8 kW heat output used 5 hrs/day over a 150-day UK heating season at £0.27/kWh.
Electric heater / season
£1579
This AC / season
£526
You save / season
£1052
~67% less electricity
| Heating method | Electricity / season | Cost / season | Efficiency | Summer cooling |
|---|---|---|---|---|
| This heat-pump AC | 1949 kWh | £526 | Up to 300% | |
| Plug-in electric heater | 5847 kWh | £1579 | 100% | |
| Electric storage heater | 5847 kWh | £1579 | 100% |
Heat output estimated from this unit's 26,600 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 →