Midea Portasplit 12000 BTU A++ Smart Inverter Portable Split Air Conditioner with Heating
Experience the best of both worlds with the Midea Portasplit 12K. This smart inverter system brings you the incredible efficiency and whisper-quiet performance of a fixed split system, combined with the ultimate flexibility of a mobile unit. Perfectly designed for rooms up to 42 sqm, it delivers powerful cooling in the summer and an energy-efficient heat pump for winter warming.
Engineered with a factory-sealed flat refrigerant hose, it sets up in minutes through your window without any permanent wall drilling. Boasting an outstanding A++ energy rating and built-in Wi-Fi control, you get premium year-round climate control with beautifully low running costs.
Year-Round Climate Control
Perfectly sized for larger spaces up to 42 sqm, this 12000 BTU split system features a high-performance heat pump. Enjoy powerful summer cooling and up to four times the efficiency of electric heaters during winter.
Smart Wi-Fi & Voice Control
Take complete charge from anywhere using the Midea Smart Home app. Utilise the 24-hour timer, set smart schedules, or simply adjust your climate hands-free with your favourite compatible voice assistants.
Whisper-Quiet Operation
Engineered with smart inverter technology and an outdoor compressor, this system balances output to drastically lower indoor noise levels. Enjoy perfectly regulated temperatures with completely undisturbed rest.
Intelligent ECO Mode
Maintain incredibly stable temperatures whilst keeping household bills low. The energy-conscious ECO mode automatically minimises power waste, ensuring you get maximum comfort with minimum energy expenditure.
Breathe Cleaner Air
A powerful built-in dehumidifier continuously extracts excess moisture, whilst integrated air filters actively capture and remove airborne odours, dust, and pollen for a significantly healthier home environment.
Easy Window Setup
Designed for swift installation without any permanent wall drilling. The indoor and outdoor units are seamlessly connected by a tough, factory-sealed flat refrigerant hose that slots right into your window opening.
Downloads
User manualWhat's in the Box
- 1 × Portasplit 12K Indoor Unit
- 1 × Portasplit 12K Outdoor Unit
- 1 × Remote Control
- 1 × Window / Balcony Mounting Bracket (for outdoor unit)
- 1 × Factory-Fitted Flat Refrigerant Hose (pre-charged)
- 1 × Window Sealing Kit
- 1 × Safety Cable
Key Dimensions & Specifications
- Indoor Unit (H×W×D): 646 × 518 × 340 mm (32.5 kg)
- Outdoor Unit (H×W×D): 438 × 500 × 260 mm (9.9 kg)
- Capacity: 3.49 kW Cooling / 3.49 kW Heating (12000 BTU)
- Energy Rating: A++ Cooling / A++ Heating (ERP Certified)
- Refrigerant: R32 / 620g
- Total Net Weight: 45.5 kg
Installation & Setup Advice
True Split Performance without the Trades Enjoy all the benefits of a fixed air conditioning system without paying thousands in installation costs or breaching your tenancy agreement. The indoor and outdoor modules are fully factory-sealed and linked by a tough, 2.5m flat line. No F-Gas engineer required—simply unpack, mount, and start cooling.
UK Window Adaptability
Check the distance: The indoor and outdoor units are permanently connected by a 2.5-meter flat hose. Plan the route: Before setting up, map out exactly how that 2.5m hose will run from the top of the outdoor unit, through your window opening, to where the indoor unit will sit.
Best suited for inward-opening or sash windows, patio doors, conservatories, balconies and vented corridors where the outdoor module can sit safely outside the room you want to cool while the indoor unit stays inside. For outward-opening windows we recommend permanently mounting the outdoor unit to a wall bracket, such as the ACWALLBKTLPG, for a secure, professional installation.
Important Delivery Info To keep the cooling loop factory-sealed, the indoor unit, outdoor unit, and refrigerant hose ship as one integrated system. The shipping box is large and weighs over 40kg. If you live in a top-floor flat with no lift, we recommend having a second person available on delivery day to help handle the package, or unboxing the modules safely on the ground floor to move them up piece by piece.
Powerful, quiet, and energy efficient comfort
The Portasplit12k is a high performance mobile split air conditioner that combines the efficiency of a fixed split system with the flexibility of a portable solution. Designed for powerful cooling and heating with ultra quiet operation, Portasplit12k delivers personalised, energy efficient climate control for rooms up to 42 sqm in homes and offices.
Connect Portasplit12k to the Midea Smart Home app to effortlessly adjust temperature, fan speed and operating modes from your smartphone, wherever you are. Enjoy precise comfort control, day or night, with intelligent features designed around your lifestyle.
Use smart scheduling or the built in 24 hour timer to pre cool or pre heat your space before you arrive. Intelligent operation helps reduce energy consumption while keeping comfort exactly where you want it — saving energy without compromise.
Efficient performance with smart split system technology
The Portasplit12k is engineered to deliver powerful cooling and heating with the efficiency of a true split system, without permanent installation. Using advanced inverter technology and a factory sealed refrigeration circuit, Portasplit12k cools and heats rooms faster and more efficiently than conventional portable air conditioners — and does so with noticeably less noise.
Thanks to heat pump heating, it provides up to four times the efficiency of traditional electric heaters, helping to significantly reduce energy consumption while maintaining consistent comfort all year round. Its intelligent operation ensures stable temperatures with minimal energy waste, keeping running costs low.
Customise your comfort
The Portasplit12k gives you precise control over your indoor climate, wherever you are. With smart temperature control via the Midea Smart Home app, you can easily adjust cooling, heating and fan settings to suit your needs, creating personalised comfort throughout the day.
Built in dehumidification helps remove excess moisture from the air, improving air quality and enhancing comfort while reducing the risk of dampness and condensation in your home or office.
Thanks to efficient inverter and heat pump technology, Portasplit12k delivers powerful performance with low running costs, automatically adjusting output to match demand for quieter operation and improved energy efficiency.
Specification
- Air Flow (M3/h): 420 / 390 / 350 m³/h
- Rated capacity Cooling (W): 3490
- Rated capacity Heating (W): 3490
- Power Input Cooling (W):1230
- Power Input heating (W): 950
- Current input Cooling (A): 5-6A
- Current input Heating (A): 5-6A
- SEER/SCOP Cooling (W/W): 6.5/A++
- SEER/SCOP Heating (W/W): 4.0/A++
- Refrigerant type/weight: R32/620g
- A++ / A+ Rating (ERP Certified)
- Digital LED temperature and function display
- Self-diagnostic function
- Save energy by using the ECO mode
- Auto Restart when electricity is restored after a power cut
- Child lock for added peace of mind
- Installed with filters to remove odours, dust and pollen
- Optional advanced air filters are available
- Warranty: 2 years
- Remote control included
- Smart control via Midea Smart Home App
- Air filters (dust / pollen removal)
Dimensions
- Indoor unit dimension (H×W×D): 646 × 518 × 340 mm
- Indoor unit net weight: 32.5 kg
- Outdoor unit dimension (H×W×D): 438 × 500 × 260 mm
- Outdoor unit net weight: 9.9 kg
- Net Weight (total unit): 45.5 kg
- Diameter exhaust air hose: 150 mm
What's in the box
- 1 x Indoor Unit
- 1 x Outdoor Unit
- Remote control
- Window / balcony mounting bracket (for outdoor unit)
- Factory fitted flat refrigerant hose (pre charged, fixed length)
- Window sealing kit
- Safety cable
Optional mounting brackets for the outdoor unit are available separately.
Useful information
The Portasplit12k is designed for fast, simple installation with no permanent building work required. The system consists of a floor standing indoor unit and a compact outdoor unit, connected by a factory fitted, pre charged flat refrigerant hose. No additional pipework, flaring, or refrigerant handling is required, allowing the unit to be set up quickly without specialist tools.
The indoor unit is a free standing appliance and does not require wall mounting. The outdoor unit is securely placed using the supplied window or balcony mounting bracket, with optional mounting accessories available separately for alternative installation scenarios. All essential installation components are included, reducing setup time and eliminating the need to purchase extra parts.
Portasplit12k features a plug and play design and does not require installation by an F Gas certified engineer, as the refrigeration circuit is factory sealed. Simply follow the installation instructions in the user manual to ensure correct placement and safe operation.
The unit comes with a 2 year manufacturer warranty, offering peace of mind and dependable performance for everyday use in homes and offices.
Downloads
Question from Stephen: Asked on 01/06/2026 Can the window fitting kit be used with a side hung casement?
Hi Stephen,Yes, the Midea PortaSplit 12000 can generally be installed on a side-hung casement window, provided the window opens wide enough for the outdoor unit and the supplied mounting bracket and sealing kit can be securely fitted to the window frame.Thanks!
Question from Mohsen: Asked on 01/06/2026 Hi, I have reading Q&A’s and noticed in one the length of pipe between the inner & outer units is quoted as 2 meters and in another 5 meters. Please confirm which is the correct answer
Hi, For the Midea PortaSplit 12000 BTU (PortaSplit12K), the connection between the indoor and outdoor units uses a fixed, pre-charged refrigerant hose that is 2 metres in length. This is a sealed system and the hose length is not extendable or available in alternative lengths such as 5 metres.
Thank you.
Question from Phil: Asked on 01/06/2026 Hi , what are the dimensions of the unit that goes outside
Hi, The outdoor unit dimensions for the Midea PortaSplit 12000 BTU (PortaSplit12k) are 500mm (W) × 260mm (D) × 438mm (H), with a weight of approximately 9.9kg, as per manufacturer specification.
Thank you.
Question from Sean: Asked on 29/05/2026 How long is the hose connecting the indoor and outdoor unit?
Hi, Yes, I’ve checked the official PortaSplit documentation. The connecting refrigerant hose between the indoor and outdoor units is a fixed 2 metre pre-charged line. It is factory sealed and cannot be extended or altered.
Thank you.
Question from Matt: Asked on 28/05/2026 Can you run the unit off a standard 13amp plug?
Hi, Yes — the Midea PortaSplit 12000 BTU air conditioner is designed to run from a standard UK 13A household plug socket. It operates on a normal 220–240V domestic supply and has a typical running current of around 5–6 amps, which is well within the 13A limit, so no special wiring or installation is required. For best practice, we recommend plugging it directly into a wall socket rather than using an extension lead where possible.
Thank you.
Question from Marcella: Asked on 27/05/2026 Does it come with a sliding door kit like in picture 7?
Hi Marcella,Yes — it does include a sliding window/door kit, but it’s a basic adjustable panel for the hose outlet rather than a full-height sliding door insert like the one shown in picture 7.Thanks!
Question from Leo: Asked on 27/05/2026 does it come with a window mount?
Hi Leo,Yes — the Midea PortaSplit 12000 BTU usually comes with a window or balcony mounting kit for the outdoor unit, but it’s not a universal fit-for-any-window frame, so depending on your window type you may still need a suitable bracket or setup.Thanks!
Question from Dave: Asked on 26/05/2026 Can connecting hose be disconnected to pass through hole in wall then reconnected?
Hi, The connecting hose on the Midea PortaSplit is part of a factory-sealed, pre-charged refrigerant circuit between the indoor and outdoor units. It is not designed to be disconnected, opened, or reconnected at any point. Because it carries refrigerant under pressure, breaking the seal would damage the system and invalidate the unit’s operation and warranty. For installation, the unit should be positioned using the full assembly with the supplied window sealing kit, rather than attempting to pass the hose through a wall or separate the units.
Thank you.
Question from KimPeck: Asked on 26/05/2026 Hi, A couple of questions if you don't mind. 1) Is the outdoor unit ok to be outside in the UK all year. 2) What is the length of the hose.
Regards
Kim
Hi Kim,Yes, the outdoor unit is designed to stay outside all year round in the UK and is built to handle normal weather conditions like rain, wind, and cold temperatures.The hose (refrigerant pipe) that connects the indoor and outdoor units is usually about 5 metres long as standard, and longer lengths may be possible depending on the installation setup, but most people use the supplied length.Thanks!
Question from Mike: Asked on 25/05/2026 hi. May I know if the outer unit is waterproof? Many thanks.
Hi Mike,The outdoor unit is not fully waterproof, but it is designed to be weather-resistant and can safely withstand normal outdoor conditions such as rain and wind when properly installed.Thanks!
Question from Alex: Asked on 24/05/2026 Can it be used for a living room with a kitchen area , 8.17x7.5 sqm?
Hi Alex,Yes, you can use the Midea PortaSplit 12000 BTU in a 61 m² combined living room and kitchen, but it is slightly underpowered for that size, so it will cool the area well near the unit and in the main living space, but it may struggle to evenly cool the entire open-plan room, especially the kitchen or farther areas.Thanks!