Smart, year-round climate control
The LG Dual Cool Pro 12k BTU (DCPRO-WZ12) is a premium, smart-enabled split system engineered for precise temperature management throughout the year. Highly regarded for its outstanding A++ energy efficiency and whisper-quiet performance, it seamlessly blends high-performance heating and cooling into one sleek unit.
Stay connected with the LG ThinQ app—allowing you to control, schedule, and monitor your energy usage from anywhere. With eco-friendly R32 refrigerant and automated sleep modes, it is designed to keep your home comfortable whilst keeping running costs beautifully low.
Intelligent Cooling & Heating
Whether you are facing a summer heatwave or a crisp winter morning, the LG Dual Cool Pro adapts instantly. Designed with smart features like Active Energy Control and automatic self-cleaning, it ensures your indoor air is always fresh, perfectly chilled, or cosily warm without wasting energy.
Fast & Powerful Performance
Stay comfortable whatever the British weather brings. The DUAL Inverter compressor provides exceptionally fast cooling in the summer and highly reliable heating during the winter.
Active Energy Control
Take complete charge of your electricity bills. Easily adjust your energy consumption by choosing from 80%, 60%, or 40% settings depending on how many people are in the room.
Smart Wi-Fi Control
Manage your climate on the go with LG ThinQ. Connect via Wi-Fi to tweak settings, set daily schedules, or monitor your energy usage straight from your smartphone.
Eco-Friendly R32 Gas
Keep your home comfortable whilst being kinder to the planet. The next-generation R32 refrigerant offers a superior cooling capacity, meaning your home stays cool using less energy.
Self-Cleaning System
Breathe fresher air every day. The brilliant internal cleaning function automatically prevents bacteria and mould build-up, significantly reducing your maintenance needs.
Ultra-Quiet Sleep Mode
Enjoy an uninterrupted night's rest. Operating at a whisper-quiet 25 dBA, the automated sleep mode gradually shifts the temperature to match your body’s natural cycle.
Downloads
User manualWhat's in the Box
- 1 × LG Dual Cool Pro Indoor Unit
- 1 × LG Dual Cool Pro Outdoor Unit
- 1 × Remote Control
Key Specifications
- Cooling / Heating Capacity: 3.45 kW / 3.5 kW
- Energy Rating: A++ (Cooling) / A+ (Heating)
- Indoor Noise Level: 25 dB(A)
- Power Supply: 220-240V~ 50Hz, 1Ph
- Refrigerant: R32 (0.54 kg)
- Smart Technology: LG ThinQ (Wi-Fi)
Installation & Technical Advice
F-Gas Installation Required To ensure safe and optimal performance, this unit must be installed by a fully qualified F-Gas AC engineer. These units contain a regulated gas which must be handled by certified personnel in accordance with F-Gas regulations. Please ensure your fitter reads the user manual in full prior to installation.
Quick & Hassle-Free Setup LG air conditioners are expertly designed for simpler, more efficient installation, significantly reducing the labour and time required. This streamlined process makes it easier than ever to bring premium climate control into your home.
Energy Saving & Variable Cooling To reduce the Global Warming Potential and provide extra energy savings, our outdoor units have a footprint rating lower than the sum of the indoor units' BTU. Because these are variable cooling inverters, they intelligently balance power among the units to achieve your target temperature in the shortest possible time without compromising individual room comfort.
Question from Alina: Asked on 08/07/2026 Hello,
I would like to ask a few questions before purchasing an air conditioner:
If I buy an air conditioner from you, do you provide an installation service, or will someone come to install it?
Is annual maintenance required for the air conditioner?
Does the gas (refrigerant) need to be refilled or serviced every year, or is it only required if there is a problem?
I would appreciate your guidance. Thank you!
Hi Alina,Yes, installation is available for this air conditioner and is carried out by a qualified F-Gas certified installer. The unit does not require annual refrigerant (gas) refills, as it is a sealed system that comes pre-charged with refrigerant. The gas only needs to be recharged if there is a leak or the system has been opened for repair. Routine maintenance, such as cleaning the filters and having the unit inspected periodically, is recommended to keep it running efficiently, but annual gas servicing is not normally required.Thanks!
Question from john: Asked on 05/07/2026 does it require an outside power socket or are they linked from the inside (fused spur)
Hi John,The LG DC PRO WZ12 air conditioner does not plug into an outside socket—it must be hardwired to a dedicated fused spur (isolator) from your home’s internal electrics, with the indoor unit powered via the outdoor unit through the installation cable.Thanks!
Question from Giga: Asked on 02/07/2026 How many years of warranty does it come with?
Hi,The LG DualCool Pro A++ 12,000 BTU Smart Wall-Mounted Split Air Conditioner with Heat Pump includes a 3-year manufacturer’s warranty.Thanks!
Hi,The LG DualCool Pro A++ 12,000 BTU Smart Wall-Mounted Split Air Conditioner with Heat Pump includes a 3-year manufacturer’s warranty.Thanks!
Question from Scott: Asked on 01/07/2026 How long approximately does it take for a qualified engineer to fit this unit in a very standard simple installation ?
Hi, The LG DualCool Pro 12000 BTU air conditioner must be installed by a qualified F-Gas engineer. In a standard back-to-back installation, fitting typically takes around 4–8 hours (half a day to one day), including full installation and commissioning. Timing may vary depending on access, pipe run length, and site conditions.
Thank you.
Question from Elli: Asked on 30/06/2026 Hello, can I have the indoor unit in a front room and the outside unit at the back of the property (three rooms over)?
Hi, Yes, it can be possible to install the indoor unit in a front room and the outdoor unit at the rear of the property, as long as the total pipe run stays within the LG installation limits (typically up to around 15m depending on conditions). The exact feasibility depends on the measured pipe route, so this would need confirming by a qualified F-Gas installer on site.
Thank you.
Question from Haval: Asked on 28/06/2026 The unit is connected via a 13 A plug ?
Hi,Yes, the LG DualCool Pro DCPRO-WZ12 is designed to run from a standard UK 13A fused plug and works on a normal 230V household socket, so it does not require a special high-current supply.Thanks!
Question from James: Asked on 28/06/2026 What’s does it come with.
Thank you.
Hi James,It comes with the indoor wall-mounted unit, the outdoor condenser unit, a remote control, a mounting bracket for the indoor unit, and the instruction manuals, and it is pre-charged with refrigerant, but it does not include the copper pipework, electrical cables, drainage piping, or installation materials, which need to be supplied and fitted by a qualified installer.Thanks!
Question from S&N: Asked on 26/06/2026 Does the condenser connect to multiple interior units or just one?
Hi,The condenser on the LG DCPRO-WZ12 is designed to connect to a single indoor unit only, so it can only serve one room rather than multiple indoor units.Thanks!
Question from Iliyan: Asked on 26/06/2026 Is it DIY installation or we need a professional to instal it? Thank you
Hi,The LG DC PRO WZ12 air conditioner is not suitable for DIY installation and must be installed by a qualified professional.Thanks!
Question from Sadler: Asked on 25/06/2026 Is this system suitable for use in a loft room?
Hi,The LG DualCool Pro A++ 12,000 BTU Smart Wall Mounted Split Air Conditioner with Heat Pump (DCPRO-WZ12) is a suitable choice for a loft room, offering efficient cooling and heating, provided its capacity matches the size and heat load of the space.Thanks!
Question from Dawn: Asked on 25/06/2026 How often does the refrigerant need replenishing/re-gasing?
Hi Dawn,The LG DualCool Pro does not require routine refrigerant replenishment or re-gassing, as it has a sealed refrigeration system. The refrigerant should last for the lifetime of the unit unless a leak develops or the system is opened for repairs.Thanks!
Question from Doug: Asked on 25/06/2026 Can the external unit be mounted to a wall vertically, turned through 90° or alternatively laid flat on a flat roof ?
Thanks
Hi, The LG general installation guidance supports standard split-system installation only. The outdoor unit must be installed in an upright, vertical position and kept level on a suitable base or wall bracket. It must not be laid flat, mounted on its side, or rotated through 90°, as this is not covered or permitted by manufacturer installation instructions and may affect performance and warranty. All installations must be carried out by a qualified F-Gas engineer in accordance with LG’s installation requirements.
Thank you.
Question from David Shaw: Asked on 24/06/2026 Good afternoon, can the outside unit lawn more than one inside unit i.e. two separate rooms close together thank you
Hi David,The LG DualCool Pro DCPRO-WZ12 is a single-split air conditioning system, so the outdoor unit can only support one indoor unit and therefore one room. If you want to cool or heat two separate rooms, you would need either two separate single-split systems or a multi-split system designed to connect one outdoor unit to multiple indoor units.Thanks!
Question from David Shaw: Asked on 24/06/2026 Hi do your Aircon units need mains gas please? Thank you.
Hi David,No, the LG DualCool Pro 12000 BTU air conditioner does not require mains gas or any connection to your home gas supply, as it runs entirely on electricity and uses a sealed refrigerant system that is installed and charged by a qualified installer.Thanks!
Question from Alan Wynded: Asked on 24/06/2026 Does this unit need to be fitted on a vertical wall
Hi, This LG split air conditioning unit is designed for standard wall-mounted installation. The indoor unit must be fixed to a vertical internal wall using the supplied mounting bracket/plate, and it must be installed level to ensure correct drainage and optimal performance. It is not suitable for installation on sloped surfaces, ceilings, or freestanding use.
Thank you.
Question from Jayne: Asked on 23/06/2026 Do these Unit run on just "Electricity" & "Water"????
Hi Jayne,The LG DualCool Pro air conditioner runs only on electricity; it does not use a water supply, as the only water involved is condensation from the air that is collected and drained away automatically.Thanks!
Question from Jason: Asked on 19/06/2026 Hi,
Im a qualified and certified fgas installer and service engineer, i have a client interested in this, what size pipework does it require?
Hi, The LG DCPRO-WZ12 uses standard 1/4” liquid and 3/8” gas pipework. This is confirmed in LG’s general installation guidance and is consistent across the DualCool Pro 12,000 BTU range. Pipework is not included and is supplied by the installing F-Gas engineer based on site requirements (max run approx. 15m depending on installation conditions).
Thank you.
Question from Mark Rowland: Asked on 17/06/2026 Is this unit supplied complete with refrigerant, or is that product installed by others?
Hi, The unit is pre-charged with R32 refrigerant from the factory and does not require a refrigerant fill at installation. A qualified installer will only adjust or top up the gas if non-standard pipe lengths are used.
Thank you.
Question from Ritchie: Asked on 03/06/2026 How many indoor units will the inverter take?
Hi Ritchie,The LG DualCool Pro A++ 12000 BTU (DCPRO-WZ12) is a single-split inverter system, so it is designed to operate with one indoor wall-mounted unit only.Thanks!
Question from Paul: Asked on 31/05/2026 Hi. Can i purchase this unit without a fgas licence?
Hi Paul,You can buy the LG DualCool Pro 12000 BTU unit without an F-Gas licence, but you cannot legally install or commission it yourself in the UK because it involves handling refrigerant, which must be done by an F-Gas certified engineer.Thanks!
Question from Michael matthews: Asked on 29/05/2026 Can I install this myself without specialist equipment?
Hi, The user manual is helpful for understanding how to operate and maintain the air conditioner, but it does not cover or replace the installation requirements. This LG split-system unit must be installed and commissioned by a qualified F-Gas registered engineer, as it involves refrigerant handling and specialist equipment. DIY installation is not recommended and may invalidate the warranty or breach UK regulations.
Thank you.
Question from Ronnie: Asked on 27/05/2026 Can you give the measurements for both units please
Hi Ronnie,The LG DualCool Pro A++ 12000 BTU Smart Wall Mounted Split Air Conditioner (model DCPRO-WZ12) has an indoor unit measuring 913 × 309 × 204 mm (about 35.9 × 12.2 × 8.0 inches), while the outdoor unit measures 787 × 290 × 498 mm (about 31.0 × 11.4 × 19.6 inches).Thanks!
Question from Lee: Asked on 26/05/2026 Hi can you tell me if this unit comes with pipe and fittings or do you have to buy separate
Hi Lee,The LG DualCool Pro A++ 12000 BTU air conditioner (DCPRO-WZ12) does not come with the refrigerant pipework or full installation fittings, so these need to be purchased separately and supplied by the installer based on your specific setup.Thanks!
Question from John: Asked on 26/05/2026 Hi
I want to place an order for this unit but I need to know ahead does it comes with the pipes ?
Hi John,No, this unit does not include the pipes or other installation materials. The refrigerant pipework, cables, and drainage components are supplied separately and fitted by the installer during installation.Thanks!
Question from AC: Asked on 26/05/2026 How many kilo wats
Hi,The LG DualCool Pro A++ 12000 BTU Smart Wall Mounted Split Air Conditioner with Heat Pump (DCPRO-WZ12) provides around 3.5 kW of cooling and heating power, while typically using about 1 kW of electricity during normal operation.Thanks!
Question from Steven: Asked on 17/05/2026 Hi, what is the square metre coverage of this unit?
Thanks
Hi Steven,The LG DualCool Pro A++ 12,000 BTU wall-mounted split air conditioner with heat pump can typically cool or heat a room of around 35 square metres, depending on factors like ceiling height, insulation, and sun exposure.Thanks!
Question from David: Asked on 12/05/2026 Can the indoor wall unit be screwed on the ceiling and the wall at the same time as our wall lining thickness is thin thanks
Hi David,The indoor unit should be mounted securely to a solid wall structure rather than supported by both the wall and ceiling, so if your wall lining is too thin, the usual solution is to fix a reinforced plywood backing board or anchor into the studs/framework behind the lining before installing the LG mounting bracket.Thanks!
Question from Rosie: Asked on 02/05/2026 Hi, is this unit suitable for a 3.6x6m garden room?
Hi Rosie,Yes, the LG DualCool Pro 12,000 BTU unit is suitable for a 3.6 × 6 m (21.6 m²) garden room, as it falls within the typical coverage range for that size of space, assuming the room is reasonably well insulated.Thanks!
Question from Sam: Asked on 26/04/2026 Can this be installed by anyone or do you need a aircon engineer to install this unit?
Hi Sam,You can’t install that unit yourself — it’s a split air conditioner, so it must be fitted by a qualified F-Gas certified air conditioning engineer because it involves handling refrigerant gas and setting up an outdoor unit.Thanks!
Question from B: Asked on 25/04/2026 Hi there,
Does this air conditioner come with the mounts for both the indoor and outdoor units?
Many thanks
Hi,This air conditioner comes with a wall mounting plate for the indoor unit, but it does not include mounting brackets or a full installation kit for either the indoor or outdoor unit.Thanks!
Question from Rob Biagioni: Asked on 19/04/2026 Hi, do you have units that push the air side to side as well as up and down?
Hi Rob,Yes, the LG DualCool Pro DCPRO-WZ12 has motorised louvres that allow the airflow to move both up and down as well as side to side, so it can direct air across different parts of the room rather than in just one fixed direction.Thanks!
Question from Dave: Asked on 15/04/2026 Hello, please can you confirm what is the minimum breaker size in amps that this unit can be connected to? also, can this be installed from a fused spur off a ring main on a 32amp circuit breaker?
Hi Dave,The LG DualCool Pro 12000 BTU (DCPRO-WZ12) should be installed on a dedicated radial circuit protected by a breaker of around 16A to 20A, depending on the manufacturer’s exact specification, and it should not be connected via a fused spur off a 32A ring main, as it requires its own dedicated supply in line with installation and safety requirements.Thanks!
Question from Thili: Asked on 11/04/2026 1/ Is this suitable for a 2.5x3 m garden office?
2/ Sufficient heating for winter and enough ac for summer?
3/ Can I purchase this as an individual and get a f gas certified engineer to fix this from my end?
Hi Thili,Yes, this 12,000 BTU LG unit is more than sufficient for a 2.5 × 3 m garden office—if anything slightly oversized—but it will comfortably provide both cooling in summer and heating in winter, and you can buy it yourself as an individual as long as a certified F-Gas engineer installs and commissions it.Thanks!
Question from Paul: Asked on 19/03/2026 What is the lowest temperature i can set the Aircon unit to please
Hi Paul,For the LG DualCool Pro A++ 12,000?BTU Smart Wall-Mounted Split Air Conditioner (DCPRO-WZ12), the lowest temperature you can set in cooling mode is typically around 16?°C (60?°F), though in practice, most users find 18?°C a more comfortable and efficient lower limit.Thanks!
Question from Gabs: Asked on 18/03/2026 Hi there
Can you please tell me how many meters of ducting is including in the box i need about 4 meters thanks
Hi, The LG DualCool Pro 12,000?BTU split air conditioner (DCPRO-WZ12) comes with the indoor and outdoor units, remote control, and basic mounting accessories. It does not include ducting or refrigerant piping — those must be provided separately by the installer based on your installation. The system can handle pipe runs up to about 15?meters, but the piping itself isn’t included.
Thank you.
Question from Paula: Asked on 10/02/2026 LG DualCool Pro A++ 12000 BTU Smart Wall-Mounted Split Air Conditioner with Heat Pump
With this a/c is the inside unit powered from the outside unit.
Hi, For this LG DualCool Pro 12,000?BTU split air conditioner, only the outdoor unit is connected to mains power. The indoor unit gets all its electricity through the cable from the outdoor unit, which is standard for wall-mounted split AC systems.
Thank you.
Question from Tash: Asked on 26/01/2026 Hi, am i able to purchase this unit even though i am a standard customer and not with a company? I have somebody that can potentially fit the unit.
Hi Tash,You can purchase the LG DualCool Pro A++ 12,000 BTU wall-mounted split air conditioner as a standard customer — it’s not restricted to businesses. However, while you may have someone who can physically fit the unit, UK law requires that the refrigerant be handled and the system commissioned by an F-Gas certified installer, so the installation must be done by a qualified professional.Thanks!
Question from Chan Yu: Asked on 23/01/2026 Hi I’m interested in this AC unit but do you offer installation or any air con installer you can recommend please?
Hi,Yes, we can install the LG DualCool Pro A++ 12,000?BTU Smart Wall-Mounted Split Air Conditioner with Heat Pump (DCPRO-WZ12). As this unit uses R32 refrigerant, installation must be carried out by an F-Gas certified engineer. You can add our professional installation service directly to your order, ensuring your unit is fitted safely, correctly, and comes with full warranty coverage.Thanks!