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LG S12EC A++ 12000 BTU Smart Wall Mounted Air Conditioner with Heat Pump

SKU: S12EC Quickfind Code: 1989482
SAVE 12%
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Air Conditioner Calculator

Use our handy calculator, which will help you figure out exactly what size of unit you require for your office or home.

What are the room dimensions?

How many people and heat sources are in the room?

What is BTU?

A BTU (British Thermal Unit) is a rating used to determine the cooling capacity an Air Conditioner.

Typically a minimum of 7000 BTU is needed to cool a small room, whereas commercial units can reach up to 25,000 BTU and beyond. Simply, the greater the BTU, the larger the space that the unit can cool.

You save: £70.00
£529.98
Installation available at checkout
Product Options
Cooling Power (BTU)
Why buy me
  •   DUAL Inverter Compressor: Delivers year-round, powerful heating & cooling even in extreme weather.
  •   LG Active Energy Control: Adjust energy use easily (80% / 60% / 40%) to save energy when fewer people are home.
  •   LG ThinQ app: Control & schedule your air con from anywhere via WiFi. Smart scheduling saves energy.
  • Self-cleaning: Prevents bacteria and mould build-up, extending the unit’s lifespan.
  • Sleep Mode: Automatically adjusts temperature overnight for a more comfortable sleep.
  • Efficient heating & cooling: Consumes just 1.08 kW (cooling) and 1.05 kW (heating) with A++ cooling and A+ heating ratings.
  • Ultra-quiet operation: Enjoy peace with noise levels as low as 19 dBA.
  • Eco-friendly cooling: R32 refrigerant is both energy-efficient and safer for the environment.
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The details

Fast and powerful cooling & heating: Stay comfortable all year round, no matter the weather. The DUAL Inverter compressor provides fast, efficient cooling in summer and reliable heating in winter, maintaining your ideal indoor temperature even in extreme conditions.

Control your energy consumption: With LG Active Energy Control, you can adjust energy consumption based on how many people are at home. Whether you're relaxing alone or hosting guests, choose from three settings—80%, 60%, or 40%—to optimise performance and reduce electricity costs without compromising comfort.

Control from anywhere with LG ThinQ: Manage your air con on the go with LG ThinQ. Connect via Wi-Fi and adjust settings, set schedules, or monitor energy usage straight from your smartphone—whether you're at home, at work, or on holiday.

Eco-friendly efficiency: The R32 refrigerant is both cost-effective and better for the environment. It offers a higher cooling capacity than older freon-based refrigerants, meaning your home stays cooler while using less energy.

Self-cleaning system for healthier air: Enjoy fresher, cleaner air with automatic internal cleaning. This function prevents bacteria and mould from building up on the heat exchanger, improving air quality, reducing maintenance needs, and extending the life of your unit.

Sleep-friendly comfort: Get a better night’s sleep with automated sleep mode. The temperature gradually adjusts overnight to match your body’s natural cooling cycle, ensuring uninterrupted, comfortable rest while saving energy.

Quick and hassle-free installation: LG air conditioners are designed for simple and more efficient installation, regardless of the environment and the number of people participating in the installation process. By reducinglabor and time required for installation, it's now possible to install more air conditioners in more homes in less time.

Built-in heat pump ensures a pleasant temperature throughout the year: It consumes 1.08 kW in cooling mode and 1.05 kW in heating mode. Additionally, it has an A++ energy rating for cooling and an A+ rating for heating, allowing you to save energy and reduce your electricity bills.

Ultra-quiet operation: Relax in peace with an air con that won’t disturb your sleep, work, or downtime. With noise levels as low as 19 dBA, it operates so quietly that you’ll barely notice it’s there.

 

Essential info

  • Power Supply: 220-240V~ 50Hz, 1Ph
  • Indoor Dimensions (L*W*H) (CM): 83.7×18.9×30.8
  • Indoor Net Weight : 8.7kg
  • Outdoor Dimensions (L*W*H) (CM): 71.7x23x49.5
  • Outdoor Net Weight : 25.1kg

More info

  •   Cooling Capacity: 3.5kW
  •   Heating Capacity : 4.0kW
  •   Max. Cooling Power (W): 4040
  •   Max. Heating Power (W): 5100
  •   Rated/Minimum Cooling Energy Consumption (W):1080
  •   Rated/Minimum Heating energy consumption (W): 1050
  •   SEER: 6.6 (A++)
  •   SCOP: Average 4.0 (A+)
  •   Copper Pipe Type length Max.:15m
  •   Refrigerant type: R32
  •  Liquid pipe diameter: 1/4
  •  Gas pipe diameter: 3/8
  •  Sound pressure level indoor unit (dB(A)): 41/19
  •  Max sound pressure level outdoor unit (dB(A)): 48/50
  •  Energy Class: Cooling/ Heating : A++/A+
  •  ThinQ (Wi-Fi): Yes
  •   Dual Inverter Compressor
  •   Cooling, Heating, purifying & Dehumidifying
  •   Quick and Easy installation
  •   Energy Saving Dual Inverter Technology
  •   Heat Pump for efficient heating
  •   Ultra-Quiet Operation
  •   Digital Led temperature and function display
  •   24 Hour Timer
  •   Self-diagnostic function
  •   Silent Mode
  •   Auto Restart
  •   Comfort Air (Indirect Cooling)

 

Tech stuff

The unit must be installed by a F-Gas qualified AC engineer. Please ensure the qualified fitter reads the user manual in full before installing.

These units contain a gas which is governed by F-Gas regulations. The gas must be handled by a qualified F-Gas personnel. Further information on the requirements and ensuring the engineer is qualified can be found at: Government Guidance

* Note: In order to reduce the Global Warming Potential, the outdoor unit footprint and provide extra energy savings; our outdoor units have a rating lower than the sum of indoor units BTU. Please note this will not affect the cooling or heating in individual rooms as those units are variable cooling inverters and they balance the cooling or heating power among the indoor units to achieve the target temperature in the shortest time. Please make sure you size the units as per our room guidance or call for tech support.

 
 
Power & Running Costs
Power Input (Cooling) 1.08kW
Cost Per Day (Average)
*Based on average use of 4 hours a day.
£1.07
Cost Per Hour (Average) 27p
Features
Timer Programmable
Heating Function
Heat pump for efficient heating, perfect for year round use
Quiet
Control Type Electronic
Smart
Can be operated or scheduled using your smart phone or tablet.
Dehumidifies
Removes moisture from the air in your home, for a more comfortable humidity level. Reduces mould and mildew.
Key Information
Brand LG
Type Wall mounted
Split Type
Multi split air cons connect a number of indoor units to one outdoor unit, to cool more than one room while saving space and running costs. Single room split air con units have one indoor unit connected to an outdoor system. Air cons with no outdoor unit are vented straight through the wall, making them perfect for anywhere outdoor space is difficult to access.
Split
Maximum Cooling Area 35sqm
Cooling Power (BTU)
The maximum cooling power of your air con in British Thermal Units. The greater the BTU, the larger the space the unit can cool.
12,000
Refrigeration Gas
R290 is an energy-efficient refrigerant, an eco-friendly alternative with zero ozone depletion potential (ODP). R290 does also not require installation by an F-Gas certified engineer, whereas R32 requires installation by an F-Gas certified engineer.
R32
Cooling Power (kW)
The maximum cooling power of your air con in kilowatts. The greater the kW, the larger the space the unit can cool.
3.5kW
Power Supply (V/hz) 220-240V/50hz
Energy Rating A++/A+
Noise level
How loud your Air Con is. A normal conversation is about 60dB
Quiet
Max Dehumidification Capacity
Max volume of water the unit can extract per day in litres
26.4L/24hrs
Colour White
Condition New
Warranty 3 years
Dimensions & Weight
Max. Hose Length 15Metres
Suitable For
Home
Office

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