10 Best Air Conditioning Units Wall Mounted in The UK

Last updated on 24/06/2025

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Best Choice

9.7

Exceptional

Electriq

electriQ iQool 10000 BTU Wall Mounted Smart Air Conditioner with Heat Pump - No Outdoor Unit Needed

Why We Love It

Minimal outdoor visibility with vents.
Efficient heating and cooling system.
Smartphone control for convenience.

Main Highlights

Wall mounted with no outdoor unit, only two air vents are visible from outside
10,000 BTU - Ideal for cooling/heating large spaces up to 35 square metres (377 square feet)
It cools, fans and heats, making it great for all year round use
Control and monitor your room temperature from anywhere by using your smartphone
Sleek and compact design â€“ Just 20cm thickness

18000 BTU Air Conditioner Wall Split Wi Fi 5 In 1 Air Cooler Dehumidifier Heater Air Purifier Fan With Heat Pump Remote Control 5.1 kW A++ Rating Pipe and Installation Kit Included

Why We Love It

Complete temperature control via Wi-Fi.
Multifunctional unit saves space.
Pre-gassed for easy installation.

Main Highlights

INSTALLATION KIT INCLUDED: 1 set of 3 meters copper pipe, 1 x 3 meters electrical wires, 1 x 304 stainless steel outdoor wall bracket, 1 x 2 meters drain pipe and Remote Control are all included.
WI FI AND REMOTE CONTROL: Imagine controlling the temperature of your home or office from your smartphone, so you're greeted with a cozy room every time you arrive. Thanks to this latest air conditioner with built-in Wi-Fi, this is now a reality. Connect it to your home Wi-Fi and use your smartphone to monitor and manage temperature, fan speed, and more from anywhere. For example, you can set it to turn on later if you're working overtime, to help avoid unnecessary energy waste. You also have the added option to control it wirelessly through a remote control.
5 in 1 Cooling, Heating, Fan, Air Purifier and Dehumidifier - Multiple options and modes with this complete all in one Unit. Save space and cost at the same time by not buying separate units to perform all these functions.
18000 BTU: With Super strong 850 M3/h Air Flow this is more powerful and stronger than average 18000 BTU Units. Get more for your money with maximum air flow. It's designed with double the BTU rating for efficient cooling or heating of large areas, saving up to 60% on energy bills compared to non-inverter models. Plus, it's self-cleaning for long-term performance with minimal maintenance.
EASY INSTALLATION: Our units are designed to reduce the installation time. The indoor and outdoor units are pre-gassed and sealed enabling the qualified fitter to easily install them. The indoor unit should be fitted to the wall. The condenser should be fixed on the ground or wall mounted on the outside of the wall. These units contain a gas which is governed by F-Gas regulations.

LG S18EC 18,000 BTU A++ Smart Wall Split Air Conditioner with Heat Pump, Wi‑Fi (ThinQ), Dual Inverter, R32 Refrigerant, Dehumidifier, A+ Heat Rating – Ideal for 40–50 m² Rooms

Why We Love It

Year-round comfort and convenience.
Quiet and efficient operation.
Affordable cooling and heating solution.

Main Highlights

High‑Capacity 18,000 BTU Cooling & Heating Dual-zone capacity delivers about 5.0 kW cooling and 5.4 kW heating—perfect for rooms around 40–50 m²
Dual Inverter Compressor Provides fast, consistent temperature control with quieter, more efficient operation, even in extreme weather
Smart Wi‑Fi Control with LG ThinQ Schedule, monitor, and control your air conditioner remotely via the ThinQ app; also compatible with voice assistants
Active Energy Control You can limit energy usage to 40%, 60%, 80%, or 100%, helping reduce electricity costs
Self‑Cleaning Function Prevents mould and bacteria buildup—keeps air fresh and improves longevity of the heat exchanger
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 that 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

18000 BTU Air Conditioner Wall Split Wi Fi 5 In 1 Air Cooler Heater Dehumidifier Air Purifier Fan With Heat Pump Remote Control 5.1 kW A++ Rating 2 Pipes and Installation Kit Included

Why We Love It

All-in-one unit saves space.
Wi-Fi control offers convenience.
Easy installation, minimal maintenance.

Main Highlights

* 5 IN 1 FEATURES: Cooling, Heating, Fan, Air Purifier and Dehumidifier - Multiple options and modes with this complete all in one Unit. Save space and cost at the same time by not buying separate units to perform all these functions.
* 18000 SUPER STRONG 850 M3/H AIR FLOW: More powerful and stronger than average 18000 BTU Units. Get more for your money with maximum air flow. It's designed with double the BTU rating for efficient cooling or heating of large areas, saving up to 60% on energy bills compared to non-inverter models. Plus, it's self-cleaning for long-term performance with minimal maintenance.
* WI FI AND REMOTE CONTROL: Imagine controlling the temperature of your home or office from your smartphone, so you're greeted with a cozy room every time you arrive. Thanks to this latest air conditioner with built-in Wi-Fi, this is now a reality. Connect it to your home Wi-Fi and use your smartphone to monitor and manage temperature, fan speed, and more from anywhere. For example, you can set it to turn on later if you're working overtime, to help avoid unnecessary energy waste. You also have the added option to control it wirelessly through a remote control.
* INSTALLATION KIT INCLUDED: 1 set of 3 meters copper pipes (2 pipes), 1 x 304 stainless steel outdoor wall bracket, 1 x 2 meters drain pipe and Remote Control are all included (electrical wire not included). Cost effective and convenient saving you time and money from spending extra purchasing additional parts.
* TURBO FUNCTION: When you turn on this mode, air conditioning provides the most rapid cooling or heating, to create comfortable conditions in the shortest possible time.
* EASY INSTALLATION: Our units are designed to reduce the installation time. The indoor and outdoor units are pre-gassed and sealed enabling the qualified fitter to easily install them. The indoor unit should be fitted to the wall. The condenser should be fixed on the ground or wall mounted on the outside of the wall. These units contain a gas which is governed by F-Gas regulations.
* DIGITAL POWER DISPLAY: Closely monitor the performance and temperature with the LED display on the indoor unit so you are fully aware at all times ensuring it is at the correct level and adjusting it wirelessly when necessary.

12000 BTU Smart WiFi A++ Easy-fit DC Inverter Wall Split Air Conditioner with 5 Meters Pipe kit - Wall Mounted Air Conditioning Unit with 5 Years Warranty

Why We Love It

Eco-friendly with A+++ rating.
Ideal for both home, offices.
Offers cooling, heating, dehumidification.

Main Highlights

Extremely energy efficient with an A+++ rating
Perfect for use in the home or large offices
3-in-1: Cooling, heating and dehumidifying
EasyFit pre-gassed with 5 m pipe and cable kit supplied as standard
Really powerful but quiet in operation

12000 BTU Air Conditioner Wall Split Wi Fi 5 In 1 Air Cooler Heater Dehumidifier Air Purifier Fan With Heat Pump Remote Control 3.4 kW A++ Rating 2 Pipes and Installation Kit Included

Why We Love It

Convenient remote control access.
Exceptional energy savings.
Multifunctional 5-in-1 unit.

Main Highlights

* 12000 BTU SUPER STRONG 600 M3/H AIR FLOW: More powerful and stronger than average 12000 BTU Units. Get more for your money with maximum air flow. It's designed with double the BTU rating for efficient cooling or heating of large areas, saving up to 60% on energy bills compared to non-inverter models. Plus, it's self-cleaning for long-term performance with minimal maintenance.
* 5 IN 1 FEATURES: Cooling, Heating, Fan, Air Purifier and Dehumidifier - Multiple options and modes with this complete all in one Unit. Save space and cost at the same time by not buying separate units to perform all these functions.
* EASY INSTALLATION: Our units are designed to reduce the installation time. The indoor and outdoor units are pre-gassed and sealed enabling the qualified fitter to easily install them. The indoor unit should be fitted to the wall. The condenser should be fixed on the ground or wall mounted on the outside of the wall. These units contain a gas which is governed by F-Gas regulations.
* TURBO FUNCTION: When you turn on this mode, air conditioning provides the most rapid cooling or heating, to create comfortable conditions in the shortest possible time.
* INSTALLATION KIT INCLUDED: 1 set of 3 meters copper pipes (2 pipes), 1 x 304 stainless steel outdoor wall bracket, 1 x 2 meters drain pipe and Remote Control are all included (electrical wire not included). Cost effective and convenient saving you time and money from spending extra purchasing additional parts.
* WI FI AND REMOTE CONTROL: Imagine controlling the temperature of your home or office from your smartphone, so you're greeted with a cozy room every time you arrive. Thanks to this latest air conditioner with built-in Wi-Fi, this is now a reality. Connect it to your home Wi-Fi and use your smartphone to monitor and manage temperature, fan speed, and more from anywhere. For example, you can set it to turn on later if you're working overtime, to help avoid unnecessary energy waste. You also have the added option to control it wirelessly through a remote control.
* DIGITAL POWER DISPLAY: Closely monitor the performance and temperature with the LED display on the indoor unit so you are fully aware at all times ensuring it is at the correct level and adjusting it wirelessly when necessary.

12000 BTU Air Conditioner Wall Split Wi Fi 5 In 1 Air Cooler Dehumidifier Heater Air Purifier Fan With Heat Pump Remote Control 3.5 kW A++ Rating Pipe and Installation Kit Included

Why We Love It

Includes comprehensive installation kit.
Smart home compatible.
Multifunctional and energy-efficient.

Main Highlights

INSTALLATION KIT INCLUDED: 1 set of 3 meters copper pipe, 1 x 3 meters electrical wires, 1 x 304 stainless steel outdoor wall bracket, 1 x 2 meters drain pipe and Remote Control are all included.
WI FI AND REMOTE CONTROL: Imagine controlling the temperature of your home or office from your smartphone, so you're greeted with a cozy room every time you arrive. Thanks to this latest air conditioner with built-in Wi-Fi, this is now a reality. Connect it to your home Wi-Fi and use your smartphone to monitor and manage temperature, fan speed, and more from anywhere. For example, you can set it to turn on later if you're working overtime, to help avoid unnecessary energy waste.
5 in 1 Cooling, Heating, Fan, Air Purifier and Dehumidifier - Multiple options and modes with this complete all in one Unit. Save space and cost at the same time by not buying separate units to perform all these functions.
12000 BTU: With Super strong 550 M3/h Air Flow this is more powerful and stronger than average 12000 BTU Units. Get more for your money with maximum air flow. It's designed with double the BTU rating for efficient cooling or heating of large areas, saving up to 60% on energy bills compared to non-inverter models. Plus, it's self-cleaning for long-term performance with minimal maintenance.
EASY INSTALLATION: Our units are designed to reduce the installation time. The indoor and outdoor units are pre-gassed and sealed enabling the qualified fitter to easily install them. The indoor unit should be fitted to the wall. The condenser should be fixed on the ground or wall mounted on the outside of the wall. These units contain a gas which is governed by F-Gas regulations.

12000 BTU Air Conditioner Wall Split Wi Fi 5 In 1 Air Cooler Heater Dehumidifier Air Purifier Fan With Heat Pump Remote Control 3.4 kW A++ Rating 2 Pipes and Installation Kit Included

Why We Love It

Powerful airflow saves energy costs.
Multi-functional with easy installation.
Wi-Fi and remote control.

Main Highlights

* 12000 BTU SUPER STRONG 600 M3/H AIR FLOW: More powerful and stronger than average 12000 BTU Units. Get more for your money with maximum air flow. It's designed with double the BTU rating for efficient cooling or heating of large areas, saving up to 60% on energy bills compared to non-inverter models. Plus, it's self-cleaning for long-term performance with minimal maintenance.
* 5 IN 1 FEATURES: Cooling, Heating, Fan, Air Purifier and Dehumidifier - Multiple options and modes with this complete all in one Unit. Save space and cost at the same time by not buying separate units to perform all these functions.
* EASY INSTALLATION: Our units are designed to reduce the installation time. The indoor and outdoor units are pre-gassed and sealed enabling the qualified fitter to easily install them. The indoor unit should be fitted to the wall. The condenser should be fixed on the ground or wall mounted on the outside of the wall. These units contain a gas which is governed by F-Gas regulations.
* TURBO FUNCTION: When you turn on this mode, air conditioning provides the most rapid cooling or heating, to create comfortable conditions in the shortest possible time.
* INSTALLATION KIT INCLUDED: 1 set of 3 meters copper pipes (2 pipes), 1 x 304 stainless steel outdoor wall bracket, 1 x 2 meters drain pipe and Remote Control are all included (electrical wire not included). Cost effective and convenient saving you time and money from spending extra purchasing additional parts.
* WI FI AND REMOTE CONTROL: Imagine controlling the temperature of your home or office from your smartphone, so you're greeted with a cozy room every time you arrive. Thanks to this latest air conditioner with built-in Wi-Fi, this is now a reality. Connect it to your home Wi-Fi and use your smartphone to monitor and manage temperature, fan speed, and more from anywhere. For example, you can set it to turn on later if you're working overtime, to help avoid unnecessary energy waste. You also have the added option to control it wirelessly through a remote control.
* DIGITAL POWER DISPLAY: Closely monitor the performance and temperature with the LED display on the indoor unit so you are fully aware at all times ensuring it is at the correct level and adjusting it wirelessly when necessary.

18000 BTU Air Conditioner Wall Split Wi Fi 5 In 1 Air Cooler Heater Dehumidifier Air Purifier Fan With Heat Pump Remote Control 5.1 kW A++ Rating 2 Pipes and Installation Kit Included

Why We Love It

All-in-one functionality.
Strong, efficient air flow.
Convenient Wi-Fi control.

Main Highlights

* 5 IN 1 FEATURES: Cooling, Heating, Fan, Air Purifier and Dehumidifier - Multiple options and modes with this complete all in one Unit. Save space and cost at the same time by not buying separate units to perform all these functions.
* 18000 SUPER STRONG 850 M3/H AIR FLOW: More powerful and stronger than average 18000 BTU Units. Get more for your money with maximum air flow. It's designed with double the BTU rating for efficient cooling or heating of large areas, saving up to 60% on energy bills compared to non-inverter models. Plus, it's self-cleaning for long-term performance with minimal maintenance.
* WI FI AND REMOTE CONTROL: Imagine controlling the temperature of your home or office from your smartphone, so you're greeted with a cozy room every time you arrive. Thanks to this latest air conditioner with built-in Wi-Fi, this is now a reality. Connect it to your home Wi-Fi and use your smartphone to monitor and manage temperature, fan speed, and more from anywhere. For example, you can set it to turn on later if you're working overtime, to help avoid unnecessary energy waste. You also have the added option to control it wirelessly through a remote control.
* INSTALLATION KIT INCLUDED: 1 set of 3 meters copper pipes (2 pipes), 1 x 304 stainless steel outdoor wall bracket, 1 x 2 meters drain pipe and Remote Control are all included (electrical wire not included). Cost effective and convenient saving you time and money from spending extra purchasing additional parts.
* TURBO FUNCTION: When you turn on this mode, air conditioning provides the most rapid cooling or heating, to create comfortable conditions in the shortest possible time.
* EASY INSTALLATION: Our units are designed to reduce the installation time. The indoor and outdoor units are pre-gassed and sealed enabling the qualified fitter to easily install them. The indoor unit should be fitted to the wall. The condenser should be fixed on the ground or wall mounted on the outside of the wall. These units contain a gas which is governed by F-Gas regulations.
* DIGITAL POWER DISPLAY: Closely monitor the performance and temperature with the LED display on the indoor unit so you are fully aware at all times ensuring it is at the correct level and adjusting it wirelessly when necessary.

Ambista Electric ALPHA Indoor unit of 9000 BTU high wall split air conditioner, 2018 model, SEER 6.2, SCOP 4.0, 2.2/3.2 kW, Energy Class A+++

Why We Love It

Impressive cooling and heating capacity.
Highest energy efficiency rate.
Environmentally-friendly refrigerant used.

Main Highlights

Cooling/Heating Capacity - BTU 9000
Cooling/Heating Capacity (kW) - 2.6(1.0-4.1) / 4.1(0.75~7.0)
SEER 9.7 / SCOP 5.3
Energy Rate A+++/A++++
Eco-friendly R32 Refrigerant. Tolerance (°C) -30

8.7

Excellent

We scanned 1348 products

We reviewed these offers relevant to the Air Conditioning Units Wall Mounted within online retailers such as Amazon, eBay and other local retailers, ensuring we covered all major brands and models. The products we selected come from trusted brands like Electriq, Generic, LG, Ambista Electric, all of which have a reputation for consistently delivering high-quality products that users love and innovative approaches for function & design.

For the best Air Conditioning Units Wall Mounted in the market, we considered we took a deep dive into 6741 online reviews , focusing on elements like user satisfaction, performance in real-world conditions, and long-term reliability. Our ranking also evaluates each review’s relevancy, authenticity, up-to-dateness and depth so that the comparison is more sound.

We concluded that:

The clear winner of our analysis is electriQ iQool 10000 BTU Wall Mounted Smart Air Conditioner with Heat Pump - No Outdoor Unit Needed. We love many things about this product by Electriq. What sets it apart from the competition is Minimal outdoor visibility with vents. , Efficient heating and cooling system, Smartphone control for convenience.
The best value product for most shoppers and where user satisfaction is continuously the highest is 18000 BTU Air Conditioner Wall Split Wi Fi 5 In 1 Air Cooler Dehumidifier Heater Air Purifier Fan With Heat Pump Remote Control 5.1 kW A++ Rating Pipe and Installation Kit Included by Generic based on online reviews by bloggers, experts and online shoppers.
The biggest bargain at the moment for Air Conditioning Units Wall Mounted and the best cost-to-value ratio is Ambista Electric ALPHA Indoor unit of 9000 BTU high wall split air conditioner, 2018 model, SEER 6.2, SCOP 4.0, 2.2/3.2 kW, Energy Class A+++at Ambista Electric with a % discount.
Our list of the best Air Conditioning Units Wall Mounted is updated regularly to reflect new releases and changes in product availability, so be sure to check back often for the latest rankings and discounts.

10 Best Air Conditioning Units Wall Mounted in The UK

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We scanned 1348 products

We concluded that: