LG DualCool EZ12 Deluxe A++ 12000 BTU Smart Wall Mounted Split Air Conditioner with Heat Pump & Voice Control
The LG DualCool 12,000 BTU is a smart-enabled R32 wall split engineered for year-round comfort. Its DUAL Inverter Compressor pairs A++ cooling efficiency with whisper-quiet operation – down to 19 dB(A) in Sleep mode – and built-in LG ThinQ Wi-Fi puts full control on your phone. Suitable for rooms of roughly up to 35 m², subject to insulation, glazing and orientation.
Why buy me
- DUAL Inverter Compressor™: LG's Twin Rotary DC inverter runs continuously rather than cycling on/off – up to 70% lower energy use and up to 40% faster cooling versus a comparable non-inverter unit, backed by a 10-year compressor warranty.
- LG ThinQ™ Wi-Fi (built-in): Control, schedule and monitor from your phone anywhere, plus hands-free voice control via Google Assistant and Amazon Alexa.
- Pre-Cool & Heat: Geofencing through ThinQ starts the unit as you approach home (250m–30km), so the room is already at temperature when you walk in.
- Active Energy Control & kW Manager: Cap consumption at 100 / 80 / 60 / 40% and set live energy limits to keep running costs down.
- Comfort Air: Indirect, draught-free airflow with 6-step vertical and 5-step horizontal louvre control.
- Self-cleaning & healthier air: Auto Cleaning dries the heat exchanger to prevent mould and bacteria build-up and extend unit life.
- Efficient heating & cooling: A++ cooling / A+ heating, consuming just 1.08kW (cooling) and 0.95kW (heating) at rated load.
- Ultra-quiet operation: Sound levels as low as 19dB(A) in Sleep mode – barely noticeable.
The details
Powerful year-round comfort. The DUAL Inverter Compressor delivers fast, stable cooling in summer and efficient heat-pump heating in winter, holding your target temperature even in demanding conditions.
Control your energy consumption. Active Energy Control lets you match output to occupancy – choose 80%, 60% or 40% of full power to trim electricity use without losing comfort, while kW Manager tracks live consumption against limits you set in the app.
Control from anywhere with LG ThinQ. Connect over Wi-Fi to adjust settings, build schedules and check energy use from your smartphone at home, at work or away – with Google and Alexa voice control built in.
Low Heating frost guard. Hold a room between 8–15°C in heating mode to protect against frost and damp while you're away, using minimal energy.
Window Open Detection. The unit senses sudden temperature swings and drops into an energy-saving mode automatically, so an open window doesn't waste power.
Self-cleaning system for healthier air. Automatic internal drying prevents bacteria and mould from forming on the heat exchanger – better air quality, less maintenance and a longer service life.
Built to last outdoors. Gold Fin anti-corrosion coil coating and a cataphoresis-treated galvanised-steel cabinet resist acid rain and coastal salt, while the Wide Louver Fin exchanger and BLDC fan motor lift efficiency and cut noise.
Ultra-quiet operation. With indoor noise as low as 19dB(A), the unit stays in the background during sleep, work or downtime.
Essential info
- Power Supply: 220–240V ~ 50Hz, 1Ph
- Indoor Dimensions (W×H×D): 837 × 308 × 189 mm
- Indoor Net Weight: 8.7 kg
- Outdoor Dimensions (W×H×D): 717 × 495 × 230 mm
- Outdoor Net Weight: 28 kg
Full specification
- Cooling Capacity (Rated / Min–Max): 3.5kW / 0.89–4.04kW (12,000 BTU)
- Heating Capacity +7°C (Rated / Min–Max): 3.71kW / 0.89–5.10kW
- Heating Capacity at −7°C: 3.0kW
- Rated Power Input (Cooling / Heating): 1.08kW / 0.95kW
- SEER (Cooling): 6.6 — Energy Class A++
- SCOP (Heating, Average Climate): 4.0 — Energy Class A+
- EER / COP: 3.24 / 3.91
- Pdesign (Cooling / Heating): 3.5kW / 2.5kW
- Annual Energy (Cooling / Heating): 186kWh / 875kWh
- Indoor Sound Pressure (Sleep / Min / Med / High): 19 / 27 / 35 / 41dB(A)
- Indoor Sound Power: 59dB(A)
- Outdoor Sound Pressure (Cool / Heat, High): 48 / 50dB(A)
- Outdoor Sound Power: 65dB(A)
- Indoor Airflow (Cooling): 4.2–12.5m³/min
- Dehumidification: 1.1L/h
- Refrigerant / GWP: R32 / 675
- Factory Pre-Charge (to 7.5m) / Top-up: 700g / +20g per metre
- Pipe – Liquid / Gas: 6.35mm (1/4") / 9.52mm (3/8")
- Max Pipe Run / Max Elevation: 15m / 7m
- Drain Connection: 21.5mm
- Operating Range (Cooling / Heating): −10 to +48°C / −10 to +24°C
- Circuit Protection (MCB): 15A
- Power / Interconnect Cable: 3 × 1.0mm² / 4 × 1.0mm² (incl. earth)
- Compressor: Twin Rotary DC Inverter (10–130%)
- Warranty: 1-year parts
- Colour: White
Key information
- Brand: LG
- Type: Wall Mounted, Single Split
- Cooling Power: 12,000 BTU (3.5kW)
- Recommended Room Size: Up to ~35m² (guidance)
- Refrigerant: R32 (F-Gas – installer required)
- Energy Rating (Cool / Heat): A++ / A+
- Noise Level: Quiet – from 19dB(A) (Sleep)
- Smart: Wi-Fi via LG ThinQ + Voice Control
- Heating: Heat Pump – year-round use
- Max Dehumidification: ~26L/24h
- Condition / Warranty: New / 1-year
Installation & Compliance
F-Gas: This unit contains R32 refrigerant and must be installed and commissioned by an F-Gas certified engineer; pipekits available (LIST SKUS) or the installer supplies pipework, cabling and drainage to site.
In the box: Indoor wall unit, outdoor condenser, wall-mounting plate, infrared remote and manuals. Copper pipework, cables, drainage and brackets are not included.
Question from Stuart: Asked on 13/07/2026 Can these be installed by a competent DIY person
Hi, this unit is not suitable for DIY installation. As it uses R32 refrigerant, the refrigerant connections and commissioning must be completed by an F-Gas certified engineer.
Thank you.
Question from gerry: Asked on 13/07/2026 Is the installation difficult?
Could it be installed by good diyer or is specialist needed.
Hi, The installation manual is useful for planning, but this is not a straightforward DIY installation. A competent DIYer may be able to prepare the mounting area and install brackets, but as this is a split system using R32 refrigerant, the final installation, connection and commissioning should be completed by a qualified air conditioning installer with the correct equipment and experience. This helps ensure the unit operates safely, efficiently and in line with the manufacturer’s requirements.
Thank you.