10 Best 12000 BTU Air Conditioner Wall Split in UK 2025
Updated on 24/06/2025
#1
Recommended
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- Multi-split controls enable independent climate management for two rooms
- Two indoor units can be connected to one outdoor unit
- Cost-effective in terms of space, installation, and operating expenses
- Highly energy-efficient with A+/A rating
- Suitable for residential or commercial use
- Units contain regulated gas; installation and handling must be performed by certified F-Gas personnel. Warranty terms apply.
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- Multi-split controls enable independent climate management for two rooms
- Two indoor units can be connected to one outdoor unit
- Cost-effective in terms of space, installation, and operating expenses
- Highly energy-efficient with A+/A rating
- Suitable for residential or commercial use
- Units contain regulated gas; installation and handling must be performed by certified F-Gas personnel. Warranty terms apply.
#2
Value for Money
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- Energy efficient A+++ rating
- Suitable for homes and large offices
- 3-in-1 functionality: cooling, heating, and dehumidifying
- Comes with EasyFit pre-gassed 5 m pipe and cable kit
- Powerful yet quiet operation
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- Energy efficient A+++ rating
- Suitable for homes and large offices
- 3-in-1 functionality: cooling, heating, and dehumidifying
- Comes with EasyFit pre-gassed 5 m pipe and cable kit
- Powerful yet quiet operation
#3
6% Off
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- 12,000 BTU cooling capacity for efficient cooling in rooms up to 400 sq. ft. with a circulation rate of 390 m³/h.
- 4-in-1 functionality with cooling, dehumidifying, and fan modes to enhance comfort and reduce humidity.
- Portable design with wheels and handles for easy movement; includes all installation accessories and straightforward instructions.
- Equipped with a removable and washable double-layer filter to trap dust, pet dander, and hair; recommended cleaning every two weeks for optimal performance.
- User-friendly control panel with LED display and remote control for easy adjustment of settings including temperature, mode, and fan speed.
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- 12,000 BTU cooling capacity for efficient cooling in rooms up to 400 sq. ft. with a circulation rate of 390 m³/h.
- 4-in-1 functionality with cooling, dehumidifying, and fan modes to enhance comfort and reduce humidity.
- Portable design with wheels and handles for easy movement; includes all installation accessories and straightforward instructions.
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#4
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- A+++ energy efficiency rating
- Designed for homes or small offices
- Offers cooling, heating, and dehumidifying functions
- Includes EasyFit pre-gassed 5m pipe and cable kit
- Powerful yet operates quietly
- F-Gas regulated gas must be handled by qualified personnel; warranty subject to commissioning and annual service
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- A+++ energy efficiency rating
- Designed for homes or small offices
- Offers cooling, heating, and dehumidifying functions
- Includes EasyFit pre-gassed 5m pipe and cable kit
- Powerful yet operates quietly
- F-Gas regulated gas must be handled by qualified personnel; warranty subject to commissioning and annual service
#5
21% Off
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- 12,000 BTU cooling capacity efficiently cools spaces up to 26 square meters, ideal for various environments including offices and homes.
- Wi-Fi connectivity enables control via the Nethome Plus app, allowing temperature and timer adjustments from mobile devices; compatible with Amazon Alexa and Google Home for basic commands.
- Class A energy efficiency rating with low power consumption, utilizing eco-friendly R290 refrigerant for cost-effective operation.
- Three speed settings (high, low, sleep) and a temperature range of 17-35°C, featuring a 24-hour timer adjustable through touch controls or remote; portable design with wheels for easy movement.
- Product dimensions: 46.7cm x 39.7cm x 76.5cm (32.5kg); Carton dimensions: 51.2cm x 44.2cm x 88cm (36.2kg).
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- 12,000 BTU cooling capacity efficiently cools spaces up to 26 square meters, ideal for various environments including offices and homes.
- Wi-Fi connectivity enables control via the Nethome Plus app, allowing temperature and timer adjustments from mobile devices; compatible with Amazon Alexa and Google Home for basic commands.
- Class A energy efficiency rating with low power consumption, utilizing eco-friendly R290 refrigerant for cost-effective operation.
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#6
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- Portable air conditioner with 4 functions: cooling, heating, fan, and dehumidifier, including a 1.5m expandable exhaust hose.
- Utilizes eco-friendly R290 refrigerant, compliant with 2020 standards, offering energy savings and low greenhouse emissions.
- Features self-evaporating technology that reduces water tank maintenance by recycling condensed water for efficient operation.
- Includes window sheet and remote control with LED display for easy mode switching and temperature setting; designed for low noise operation (49-53 dB) and easy mobility with casters.
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- Portable air conditioner with 4 functions: cooling, heating, fan, and dehumidifier, including a 1.5m expandable exhaust hose.
- Utilizes eco-friendly R290 refrigerant, compliant with 2020 standards, offering energy savings and low greenhouse emissions.
- Features self-evaporating technology that reduces water tank maintenance by recycling condensed water for efficient operation.
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#7
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- 12000 BTU/h cooling capacity with 19 SEER2 efficiency, providing reliable temperature control and dehumidification.
- Equipped with intelligent settings including automatic defrosting, self-diagnosis, sense mode, and eco-friendly options, making operation straightforward and energy-efficient.
- Features a smart sensor that detects ambient temperature via the remote control for precise airflow and temperature adjustments.
- Operates quietly at 30-41 dBa, ensuring comfort without noise disruption; designed for professional installation with required adjustments for line set changes.
- Covers areas up to 100 square feet and can function in temperatures as low as -15°C, making it suitable for various environments. Standard installation kit included.
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- 12000 BTU/h cooling capacity with 19 SEER2 efficiency, providing reliable temperature control and dehumidification.
- Equipped with intelligent settings including automatic defrosting, self-diagnosis, sense mode, and eco-friendly options, making operation straightforward and energy-efficient.
- Features a smart sensor that detects ambient temperature via the remote control for precise airflow and temperature adjustments.
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#8
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- Multi-Functional All-Year Comfort: Experience versatile climate control with this 4-in-1 unit that combines cooling, heating, fan, and dehumidifier modes. Perfect for year-round use in bedrooms, offices, RVs, or garages, it adapts to your needs—whether battling summer heat, winter chills, or humidity. Compact and adaptable, it’s your go-to solution for any season
- Powerful Cooling Performance: Rapidly cool small to medium spaces (up to 25x25 ft) with high-efficiency 12000 BTU. Users praise its ability to tackle intense heat in Texas summers, server rooms, and sunlit RVs. Enjoy quick relief without the wait, even in challenging environments
- Effortless Portability & Setup: Built-in wheels and ergonomic handles let you move this unit effortlessly between rooms, garages, or camping trips. The included window vent kit ensures simple installation, while durable seals resist pet interference. No permanent setup required—ideal for renters or on-the-go lifestyles
- Energy-Saving & Budget-Friendly: Cut costs without sacrificing comfort! This AC operates as a wallet-friendly alternative to central systems or window units, delivering comparable performance at a fraction of the energy cost. Users report significant savings on monthly bills, making it ideal for supplemental heating or cooling
- Whisper-Quiet Cooling: Engineered with advanced noise-reduction technology, this AC unit operates at only 52 dB (quieter than a normal conversation) and drops below 48 dB in Sleep Mode — delivering silent comfort that won't disrupt movie nights or restful sleep
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- Multi-Functional All-Year Comfort: Experience versatile climate control with this 4-in-1 unit that combines cooling, heating, fan, and dehumidifier modes. Perfect for year-round use in bedrooms, offices, RVs, or garages, it adapts to your needs—whether battling summer heat, winter chills, or humidity. Compact and adaptable, it’s your go-to solution for any season
- Powerful Cooling Performance: Rapidly cool small to medium spaces (up to 25x25 ft) with high-efficiency 12000 BTU. Users praise its ability to tackle intense heat in Texas summers, server rooms, and sunlit RVs. Enjoy quick relief without the wait, even in challenging environments
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#9
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- 12000 BTU cooling efficiency suitable for rooms up to 550 square feet; uses eco-friendly R290 refrigerant.
- 4-in-1 functionality: cooling, heating, fan, and dehumidifier modes with temperature control from 18-32°C and a dehumidification capacity of up to 45L/day.
- Features a 24-hour timer for customized operation, including advanced self-evaporating technology to minimize drainage needs.
- Removable air filter with antibacterial technology enhances air quality and is easy to clean and reuse.
- Portable unit with remote control, swing mode for optimal air distribution, and universal wheels for easy mobility.
- Includes a 2-year limited warranty for defects in materials and workmanship.
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- 12000 BTU cooling efficiency suitable for rooms up to 550 square feet; uses eco-friendly R290 refrigerant.
- 4-in-1 functionality: cooling, heating, fan, and dehumidifier modes with temperature control from 18-32°C and a dehumidification capacity of up to 45L/day.
- Features a 24-hour timer for customized operation, including advanced self-evaporating technology to minimize drainage needs.
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#10
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- 7000 BTU air conditioner effectively cools spaces down to 15°C, suitable for various room sizes.
- User-friendly digital LED display and remote control for easy operation, featuring adjustable thermostat and 24-hour timer.
- Class A Energy Efficiency rating with eco-friendly R290 refrigerant, designed to lower energy consumption during use.
- Includes window venting kits for easy installation in slide or hinged windows, featuring a compact design.
- Offers 4 operating modes: auto, cooling, dehumidifying, and fan only, with automatic oscillation for even air distribution.
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- 7000 BTU air conditioner effectively cools spaces down to 15°C, suitable for various room sizes.
- User-friendly digital LED display and remote control for easy operation, featuring adjustable thermostat and 24-hour timer.
- Class A Energy Efficiency rating with eco-friendly R290 refrigerant, designed to lower energy consumption during use.
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