10 Best Air Conditioning Unit With Heater in The UK

Last updated on 16/07/2025

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Best Choice

9.9

Exceptional

Sealey

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

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.

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.

Inventor Portable Air Conditioner Magic 5-1, Powerful 12000BTU Mobile AC, Heating, Dehumidifier, 3 fan speeds, Digital Display, Remote, Window Kit, 24 Hr Timer (WEE/MM0449AA) [Energy Class A]

Why We Love It

Versatile climate control options.
Convenient remote and display.
Eco-friendly refrigerant choice.

Main Highlights

OUR MOST POWERFUL AIR CONDITIONER: This high-performance portable AC unit delivers an impressive 12,000 BTU of cooling power, making it ideal for efficiently cooling large to extra-large spaces. Its mobile design makes it a versatile solution for any room.
REAL-TIME DISPLAY & REMOTE CONTROL: Magic Mobile Air Conditioner includes a digital display indicating the current temperature, view in °F or °C. Its multi-functional control panel plus the remote control allows you to set time, adjust the temperature & switch between modes easily.
5-in-1 FUNCTIONS: Magic, integrates 5 convenient modes: cooling mode, to chill your room in hot weather conditions; heat your room in cold winter; fan mode to deliver either gentle or powerful air stream; dry mode to dehumidify the air and keep the room humidity from 40% to 60%.
PORTABLE & HASSLE-FREE INSTALLATION: Expandable exhaust hose that fits with any Standard Slider or Double Hung Window. The exhaust hose may be stretched out to 1.6 meters of length making the initial installation a breeze. Free Flexible Window Kit included.
HUMANISED DESIGN: Space-saving design with easy-roll omnidirectional & durable casters that help you move your “Magic” around spaces.
CLIMATE-FRIENDLY REFRIGERANT: R290 is a natural and safe refrigerant. It has no ozone depletion potential, only a low global warming potential (GWP) and is energy-saving and efficient.
WASHABLE AIR FILTER: To ensure clean, cool air, this AC unit includes a specially designed removable and reusable air filter that helps protect against dust and pet hair. For optimal performance and longevity, it's recommended to clean the filter every two weeks.
AIR COOLING EXPERTS: We stay connected with our customers through multiple communication channels, so you can purchase and enjoy your experience with confidence.

BLU12 12,000BTU Portable Air Conditioner, Heating, Cooling, Dehumidification and Fan, Remote Control, Window Sheet for UK Windows Included, for Rooms Up to 30 Square Metres

Why We Love It

Versatile all-year appliance.
Eco-friendly with energy savings.
Self-evaporating, maintenance-free operation.

Main Highlights

4-in1 Multi Functional: Portable air conditioning unit with cooling, heating, fan and dehumidifier function, complete with 1.5m expandable exhaust hose included. The BLU12HP 12,000 BTU portable air conditioner delivers an instant cooling relief for your home or work place. It can be used all year round due to it's heating and dehumidifying function.
New R290 Refrigerant: uses natural high efficiency R290, which has no greenhouse emissions. The natural refrigerant is non-toxic, eco friendly and also offers energy savings. Already respecting the 2020 requirements you can be sure you are purchasing an air conditioning unit which already complies and will last you very many years, unlike air conditioning units that still use polluting gases.
Self Evaporating Function: Reduces the need to regularly empty the water tank as the unit recycles approximately half of the condensed water and uses it to cool off the inner cooling coils, which allows the unit to run more efficiently. It then disperses, or evaporates, the remaining water, along with the hot air, via the hot air duct. This cuts out any unnecessary water collecting inside the unit or in an outside container.
Complimentary Window Sheet, Remote Control with LED Display to switch between Modes, Set Temperature & View °F & °C. Easy-roll omnidirectional casters help you move your "BLU12HP" wherever it is needed most. Sound Pressure Level 49 - 53 dB(A). Sound Power Level 62 - 64dBA. PLEASE NOTE: The BLU12 does NOT have a swing function. It is designed to cool down spaces by distributing air evenly without the need to have a swing function.

12V RV AC Unit Van Air Conditioning Roof Heater Combo, 12 Volt Silent Roof Air Conditioner Unit with Heating, for Camper, Truck, Trailer, Boat, Tractor

15% Off

Why We Love It

Cost-effective cooling year-round.
Quick temperature regulation in minutes.
Quiet operation enhances travel comfort.

Main Highlights

Economical Comfort at All Times: Experience cost-effective cooling with our 12V DC air conditioner, powered by vehicle battery or external power source. Whether on a long trip or with the vehicle parked, you can enjoy uninterrupted comfort in the cab of your truck even when the engine is off. With an estimated fuel cost savings of up to $6,000 per year, it's both an enjoyable and practical investment.
Quick Cooling/Heating No Waiting - Our RV air conditioning units quickly regulate the temperature inside your truck in as little as 8 minutes during a long trip or a break. Feel the cool breeze in the summer and cozy warmth in the cold winter months, ensuring your RV instantly becomes an oasis in the face of extreme weather conditions.
Quiet Retreat on the Move: Enter a serene space during your trip with our RV inverter air conditioner. With its innovative frequency adjustment technology and low noise features, whether you're cruising highways or lounging in a quiet campsite, enjoy a peaceful retreat in the car with less than 50dB.
STURDY AND EASY TO INSTALL: Ensures impact and corrosion resistance thanks to its high quality ABS material. Comes with a full set of accessories and detailed instructions to realize a simple air conditioning installation. Our units integrate seamlessly into your RV, giving you peace of mind and ensuring durability for long-lasting adventures.
Versatility that Unleashes Limitless Exploration: Explore diverse landscapes and climates effortlessly with our truck air conditioner. From rugged terrain to urban environments, whether you're crossing mountain passes, navigating city streets or camping under the stars, it's your essential companion. With its wide range of applications and an adaptable outdoor unit, transform your truck into a comfortable space wherever you go.

Polar G-Series Portable Air Conditioner and Heater GE959

18% Off

Why We Love It

Durable with easy-clean ABS construction.
Powerful cooling for bigger rooms.
Ensures good air with filter.

Main Highlights

STACKABLE DESIGN: Space-saving solution with the ability to stack up to 5 chairs when not in use.
MODERN WOOD FINISH: Beech veneer seat and backrest offer a clean, minimalist look that suits various interiors.
DURABLE FRAME: Chrome-plated steel legs ensure strength and stability for frequent daily use in busy venues.
COMFORTABLE SEATING: Padded seat and ergonomic backrest provide support for long sitting periods.
SUITABLE FOR INDOORS: Ideal for cafes, bistros and restaurants operating in indoor environments.

COSTWAY 6-in-1 Portable Air Conditioner 12000BTU, Mobile Heater, AC Unit, Dehumidifier, Fan with WiFi Smart APP, Automatic Mode, Sleep Mode, 3 Fan Speeds, 24H Timer, Remote Control (Curved Pattern)

Why We Love It

Versatile with 6 modes.
Smart WiFi for convenience.
Powerful cooling and timer.

Main Highlights

【6 Modes & 3 Fan Speeds】 This portable air conditioner combines 5 modes in one, including automatic, cool, heat, fan, dehumidify and sleep mode, which is perfect for all-season use. There are 3 fan speeds to choose from: high/medium/low speed and the temperature setting range is 15-31℃.
【3 Control Methods】 The smart WiFi technology allows you to adjust settings, switch modes, and set schedules via your mobile phone conveniently. In addition, this portable AC unit features a touch panel with LED display and a handy remote control for simple operation.
【Powerful Cooling, Auto Swing & 24H Timer】 Featuring a strong cooling capacity of 12000 BTU, this portable air conditioning unit can cool down the room of up to 25 ㎡ effectively. Plus, the 60-degree auto-swing function circulates air smoothly and evenly. Besides, thanks to the 24-hour timer, the AC unit can turn on or off automatically based on your needs.
【Humanized Details】 The low noise sleep mode ensures interference-free sleep throughout the night. Equipped with 2 built-in handles and 4 universal wheels, this floor AC unit can be easily moved around. Additionally, there are 2 ways to drain: continuous drainage (connect the included drain hose to the drain port); manual drainage (remove the bottom drainage plug).
【Easy & Flexible Installation】 This mobile air conditioner comes with complete accessories and clear instructions, allowing for quick setup. With the adjustable window kit, the exhaust hose can be connected to any vertical sliding windows or horizontal sliding windows.

12000 BTU Portable Air Conditioner Unit with Remote Control - Energy Class A - Evaporative Coolers Cooling And Heating - Mobile Heater And Cooler Fan

Why We Love It

Powerful and efficient cooling.
Environmentally friendly refrigerant.
Includes easy setup components.

Main Highlights

1. Powerful and efficient portable air cooler with a cooling capacity of up to 12,000 BTU/h and a heating power of 10,000 BTU/h.
2. Environmentally friendly R290 refrigerant for cooling and heating functions.
3. Energy-efficient and low noise air conditioner with a 470m3/h airflow for optimal comfort.
4. Includes window mounting kit, venting hose, and extraction duct for easy setup.
5. Multifunctional features include cooling and heating fan, Auto mode, Turbo, Dehumidifier, and Extra Cool for year-round comfort.

SereneLife Portable Air Conditioner - 9000 BTU Air Conditioning Unit, 4-in-1 Digital Display with Heat, Dehumidifier, Cooling, Fan & Sleep Mode with 24 Hour Timer, Remote Control, Window Kit

Free Shipping

Why We Love It

Lightweight and easy to move.
Cools and dehumidifies effectively.
Versatile four operating modes.

Main Highlights

🌟 Handy and Portable: The Serene Life Portable Air Conditioner System features a lightweight, sleek body design intended for use in the bedroom, living room, or garage at home or office. It includes rolling wheels for easy portability. Controller type: Remote Control.
💧 Built-In Dehumidifier: Enjoy the cooling effect of the portable AC while also reducing humidity levels, offering significant financial and space savings.
🌀 4 Operating Modes: The compact floor AC indoor cooler unit features simple plug-in operation with 4 modes - cooling, heating, dehumidifier, and fan. It also includes automatic swing mode with a moving wind vent for maximum air circulation.
🎛️ Remote Control: Features a digital touch button control panel with settings for power, mode, timer, temperature, and fan speed. Other functions such as unit selector (°C/°F) and sleep key can be adjusted using the included remote control.
❄️ Great for All Year Round: With 9,000 BTU (ASHRAE) / 6,000 BTU (SACC) cooling power and 9,000 BTU heating power, this unit is ideal for saving space and money. The cold air can cover a room up to 42 square meters. Airflow is rated at 290 cubic meters per hour, and moisture removal/dehumidifier at 1.5 litres per hour, with an operating noise level of only 52-56 dBa.

Air Conditioning Unit, 7000BTU Air Conditioner with 2 Control Ways, Digital Display, Installation Kit, Low Energy, 1-24 H Timer, 4 IN 1 Ventilation Conditioning Cooling Modes for Room up to 25m²

Free Shipping

Why We Love It

Versatile four modes to choose.
Compact design fits any space.
Convenient remote control operation.

Main Highlights

4 Modes Selection: Cooling mode cools your large room in hot weather conditions; Fan mode provides powerful airflow; Dehumidification mode dehumidifies the air and keeps the room humidity around 50%. Silent mode operates quietly with effective cooling.
Compact & Portable with Night Sleep Mode: This air conditioner is compact in size and does not take up space. It is usually suitable for placing in every corner of the living room, room, and kitchen. In the night sleep mode, the fan speed will change to low speed, which cools down quietly and effectively, allowing you to have a good sleep.
4 In 1 Portable Air Conditioner: Cooling/ventilation/dehumidifier - the four-in-one air conditioning unit can accelerate indoor air circulation in the shortest time, reduce the temperature of the surrounding environment, let you feel cool instantly, and relieve the stuffiness in the air.
Easy Installation & Dual Window Kit: The configured ventilation kit and window seal are very simple and easy to understand. Even beginners can quickly master the installation method. Its size is suitable for most types of windows and meets the cooling needs of most families.
LED Display & Remote Control: The LED digital display of the portable air conditioner shows the current temperature, allowing you to easily understand the indoor temperature. The choice of remote control and touch control makes your life more convenient. Whether it is set at a close distance or a long distance, you can feel the comfort and coolness brought by the air conditioner.

9.2

Superb

We scanned 1504 products

We reviewed these offers relevant to the Air Conditioning Unit With Heater 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 Sealey, Generic, Inventor, BLU, Bailigo, POLAR REFRIGERATION, COSTWAY, SereneLife, NELGOLLE, 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 Unit With Heater in the market, we considered we took a deep dive into 7521 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 Sealey 4-in-1 Portable Air Conditioning Unit 16,000Btu/hr with Window Sealing Kit - SAC16000. We love many things about this product by Sealey. What sets it apart from the competition is Compact and portable design, Thermostatically controlled timer, Eco-friendly refrigerant included.
The best value product for most shoppers and where user satisfaction is continuously the highest is 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 by Generic based on online reviews by bloggers, experts and online shoppers.
The biggest bargain at the moment for Air Conditioning Unit With Heater and the best cost-to-value ratio is Polar G-Series Portable Air Conditioner and Heater GE959at POLAR REFRIGERATION with a 18% discount.
Our list of the best Air Conditioning Unit With Heater 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 Unit With Heater in The UK

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mini air conditioner

We scanned 1504 products

We concluded that: