10 Best 18000 Btu Portable Air Conditioner in The UK

Last updated on 02/08/2025

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De'Longhi Pinguino PACEX120 Silent | Portable Air Conditioner with Real Feel Technology | 110m³, 11,500 BTU, A Energy Efficiency, Black

Why We Love It

Eco-friendly with no emissions.
Impressive cooling and efficiency.
Quiet, disturbance-free operation.

Main Highlights

The PACEX120 uses a natural high efficiency gas, propane R290, which has no greenhouse emissions
Maximum cooling 11,500 BTU (coverage area: British thermal unit), this machine has the greatest coverage area of the De'Longhi portable range and yet still offers A energy efficiency
12 hour digital timer and thermostat with Real Feel technology
Innovative LED display, designed to provide an immediate feedback about comfort status
This Pinguino unit operates 49-53 dB(A). No sound interference with your relaxation, with the complete insulation package.

De'Longhi Pinguino AP98 Gentle Jet Portable Air Conditioning Unit, 11500 BTU/h, For Rooms up to 100m3

Why We Love It

Rapid cooling for ultimate comfort.
Efficient, gentle air distribution.
Whisper-quiet operation enhances relaxation.

Main Highlights

Arctic Gentle Surround technology - optimizing air distribution we decreased 30% the time to cooling down the room
Dual Mode & Efficient technology - combination of the innovative gentle air distribution which improves the comfort around you with a more efficient cooling circuit
EcoRealFeel - Comfort is the result of correct matching between temperature and humidity. ECO REAL FEEL tracks and acts on both to automatically reach and maintain your desired comfort
Silent Technology - The silence of power, Silent mode up to 50% more quiet*****

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.

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.

De’Longhi PAC EL110 ERF Bluetooth Wifi Silent Portable Air Conditioner 11,000 BTU 110m3 A Energy Efficient 24hr Timer & Thermostat 0151462012

Why We Love It

Automates temperature and humidity control.
Eco-friendly, energy-saving technology.
Easily portable with quiet operation.

Main Highlights

REAL FEEL TECHNOLOGY: unique DeLonghi technology, enabling PAC to act AUTOMATICALLY on temperature and relative humidity simultaneously, to reach optimal comfort and keep it over time
Maximum cooling capacity 11,000 Btu/h*
R290 propane gas: natural refrigerant gas, non-toxic, eco-friendly and offering energy saving
Fan function
Dehumidifying function
3 fan speed to have the maximum power or the minimum noise level
Handles and castors for easy transportation
Airflow 350
Cost Pence Per Hour 30.105
For Rooms Upto m2 36 M²

De'Longhi Pinguino PACEL112CST Smart Portable 11,000 BTU Air Conditioner, WiFi App & Alexa Voice Control, 3 in 1 Air Conditioning Unit, Rooms up to 110m³, Window Kit, A+ Energy Efficiency

Why We Love It

Versatile climate control.
Intuitive LED panel.
Efficient moisture removal.

Main Highlights

POWERFUL AND QUIET COOLING - Pinguino Care4Me, the intelligent 11,000 BTU air conditioner that makes ideal comfort personal, for any space up to 110m³. Using Silent Technology, this Pinguino unit 50% noise reduction from max to min speed
SMART CONTROL - Easily control Pinguino from home or outside through the De'Longhi Comfort app or voice assistance, Adapt comfort to your personal liking through MyEcoRealFeel via the app, Geofencing feature to turn on when you're close to home
VOICE ASSISTANCE ENABLED - This portable air conditioner can be paired with voice-enabled speakers like Amazon Alexa and Google Assistant, so you can control it from wherever you're sitting, as well as through the mobile app
COOL SURROUND TECHNOLOGY - Experience perfect cooling with the Smart Sensing feature, which monitors temperature and humidity around the smart control unit, Keep the remote unit near you and it will keep you as cool as you like
3 IN 1 FUNCTIONALITY - Enjoy ideal comfort thanks to this multifunctional 3-in-1 unit with 3 speed settings, Separate dehumidifying function (41l/ 24 hours) for especially wet seasons or humid rooms and separate fan function to simply circulate air
ENERGY EFFICIENT - Class A+ Energy Efficiency rating. Personal comfort plus 30% energy savings thanks to MyEcoRealFeel (Internal test, initial condition 30° C and 40%RH)

Sealey 4-in-1 Portable Air Conditioning Unit 16,000Btu/hr with Window Sealing Kit - SAC16000

14% Off

Why We Love It

Compact and portable design.
Thermostatically controlled timer.
Eco-friendly refrigerant included.

Main Highlights

4-IN-1 HIGH CAPACITY - Compact, portable air conditioner, air cooling with ventilation, dehumidifying and heating functions.
THERMOSTATICALLY CONTROLLED - Built-in 24hr timer and sleep mode.
SOFT TOUCH CONTROL PANEL - LED digital display and remote control.
WIND SPEED – Three powerful wind speeds
SELF-EVAPORATING SYSTEM - Allows better efficiency, low maintenance and powerful cooling.
WATER-FULL INDICATOR - Auto-shut-off.
EXTENDABLE EXHAUST DUCTING - With window seal kits for extraction.
DEHUMIDIFYING FUNCTION - Capable of removing up to 50.4L/day and includes continuous drain hose.
ECO-FRIENDLY R290 REFRIGERANT.

DeLonghi PAC EM82 63 dB White

Why We Love It

Effortless room-to-room mobility.
Optimizes air purity.
Smart energy-efficient cooling.

Main Highlights

Cooling, Fan and Dehumidifying functions
Energy Efficiency Class: A
Great for bedrooms and living spaces
3 fan speeds for optimal cooling
Highly Portable and easy to use

Morphy Richards Flexifreeze Portable Air Conditioning Unit, 12k BTU, Remote Control, Water Full Indicator, Timer Function, 3 Fan Speeds, A Energy Rating, Home, Office, LED Display, 824000

Why We Love It

Efficient cooling for large rooms.
Powerful moisture extraction capabilities.
Versatile three-in-one functionality.

Main Highlights

12k BTU Cooling Power with Class A Energy Rating: Combines reliable cooling performance with low environmental impact, efficiently cooling and conditioning large rooms up to 24m² while helping to minimise running costs.
Powerful Dehumidification: Extracts up to 40 litres of moisture daily with a large 1.5L water tray and self-evaporating system, maintaining a healthier home atmosphere.
3-in-1 Multi-Functional Design: Offers air conditioning, dehumidifying, and cooling modes to suit your needs, making it a versatile solution for year-round use.
Intuitive LED Display and Remote Control: Provides seamless and convenient adjustments to settings from anywhere in the room for effortless operation.
Convenient 24-Hour Timer: Allows you to programme your cooling schedule with ease, enhancing control and ensuring comfort throughout the day or night.

ELECCI 4-in-1 Portable Air Conditioner - 12000 BTU Cooling/Heating for 60m² Rooms | WiFi-Enabled Dehumidifier, Heater & Fan with Compressor | All-Season Smart Climate Control

15% OffFree Shipping

Why We Love It

Highly efficient cooling and heating.
Four personalized air treatment modes.
Convenient drainage for hassle-free use.

Main Highlights

【Highly efficient in Cooling and Hot Air】 With a highly efficient compressor, this powerful air conditioner coolers is the perfect addition to any room, providing COOL AIR to a 60 square meters space and HOT AIR to a 40 square meters space, giving you a wonderful feeling in both hot and cold weather. Temperature Control Range is between 61℉ (16℃）and 90℉ (32℃), operating a variety of controls to let it be the more comfortable temperature range for the human body in different seasons.
【Powerful Four Air Treatment Mode You Need】This portable air conditioner coolers has 4 personalized function modes for you to choose from - Cooling, Heater, Dehumidify and Air Supply it also has a built-in temperature sensor that automatically adjusts the compressor operation according to the current temperature environment to reduce energy consumption.
【Super Convenient to Drain】No more frequent empting of bucket or pan for condensate. Not only does this cooler have a inner water tank, but also it can be drained through two drain holes for cooling, heating and dehumidification modes. After the drainage pipe is connected to the upper drain hose, it can drain water for cooling and heater mode, and the lower drain hose can discharge condensate for dehumidification function. More convenient to use, peace of mind.
【Humanized design-double LCD display】 This multifunctional air treatment air conditioner cooler is equipped with an easy-to-read LCD data display in the front of cooler that lets you know the operating status of the machine, which also allows you to check the temperature from a distance or from a distance in the dark, in addition, it is also designed with an intelligent control panel in the top, which allows you adjust its mode or temp as you need, with the portable remote control you can adjust the temperature.
【Low Maintainance-Safe to Use】With auto defrost function under dehumidify and cooling mode. And continuous drainage is available when working. It also can automatically detect the machine temperature and determine whether antifreeze is needed, so that the machine still has good performance when the ambient temperature is low. This is very important the compressor also has stop and start protection functions when the machine is running, maximizing the safety of use.
【Advantage in Low Noise】 There is no special sleep mode, but through intelligent detection and wind speed regulation, it can accompany you to spend a comfortable home life 24 hours a day throughout the year! When you rest on the sofa or bed, adjust the wind speed to low, the decibel value of the machine is about 50dB. When the wind speed is adjusted to run at high speed, the decibel level will increase by 60dB. Don't worry too much, it will not affect your ability to concentrate on your own business.
【Refrigerant compatibility R32】 The refrigerant compatibility of this portable air conditioner is R32/0.34kg (12OZ). relevant indices: ODP=0, GWP=2200. Its advantages are that it does not damage the ozone layer, is environment friendly, and high refrigeration efficiency, it has good safety performance (non-flammable, non-explosive, non-toxic, non-irritating, non-corrosive)
【Why can't the temperature be lowered in a large room? 】 To achieve the best cooling effect. Please be sure to connect the exhaust pipe, because the compressor will discharge heat when working, and this heat must be discharged to avoid affecting the indoor temperature. In addition, the air output of this machine is 400m³/h. When you need it to run the cooling mode in a space of 40-60 sq m, please check whether the room is relatively empty and there is no other heat source that generates heat. Under normal circumstances, it takes 30-40 minutes to cool down to the ideal value. Thank you for your understanding!

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We scanned 1525 products

We reviewed these offers relevant to the 18000 Btu Portable Air Conditioner 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 De'Longhi, Generic, Sealey, Morphy Richards, ELECCI, all of which have a reputation for consistently delivering high-quality products that users love and innovative approaches for function & design.

For the best 18000 Btu Portable Air Conditioner in the market, we considered we took a deep dive into 7626 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 De'Longhi Pinguino PACEX120 Silent | Portable Air Conditioner with Real Feel Technology | 110m³, 11,500 BTU, A Energy Efficiency, Black. We love many things about this product by De'Longhi. What sets it apart from the competition is Eco-friendly with no emissions, Impressive cooling and efficiency, Quiet, disturbance-free operation.
The best value product for most shoppers and where user satisfaction is continuously the highest is De'Longhi Pinguino AP98 Gentle Jet Portable Air Conditioning Unit, 11500 BTU/h, For Rooms up to 100m3 by De'Longhi based on online reviews by bloggers, experts and online shoppers.
The biggest bargain at the moment for 18000 Btu Portable Air Conditioner and the best cost-to-value ratio is ELECCI 4-in-1 Portable Air Conditioner - 12000 BTU Cooling/Heating for 60m² Rooms | WiFi-Enabled Dehumidifier, Heater & Fan with Compressor | All-Season Smart Climate Controlat ELECCI with a 15% discount.
Our list of the best 18000 Btu Portable Air Conditioner 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 18000 Btu Portable Air Conditioner in The UK

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We scanned 1525 products

We concluded that: