The best wall-mounted air conditioners (stationary air conditioners) in the UK 2023

The onset of the heat wave phenomenon has led to the rise of air conditioning in a big way. For those looking to cool a single room or who are concerned that a mobile or other model will take up too much space, wall-mounted air conditioners can be a great option to consider. To help you choose the right model, we have a selection of the best wall-mounted air conditioners on the market.

Daikin Sensira FTXC35B 1
9/10

Best value for money

Daikin Sensira FTXC35B

The best wall air conditioner in 2021

How could we do a wall air conditioner comparison without talking about Daikin? With a power of 3.5 kW in heating and 12,000 BTU in cooling the Daikin Sensira FTXC35B is a must.

426 £ on Manomano

Daikin is the gold standard when it comes to wall mounted air conditioners. And for this year, what better than the Daikin Sensira FTXC35B to open this comparison? This is one of the latest wall-mounted air conditioners released by the Japanese giant. It features self-diagnosis, 24-hour timer, maximum power mode, energy saving mode (reducing consumption to 30% per year), comfort mode that prevents air from blowing directly at people's height and many others.

Particularly quiet, the Daikin Sensira FTXC35B emits only 20 dB(A) in night mode. It delivers 3.50 kW of heating power and 3.30 kW or 12,000 BTUs of cooling power. Note that this wall-mounted air conditioner is suitable for different environments: homes, offices, hotels, etc. Thanks to the vertical oscillation of the exhaust deflector and the 5-stage speed control, it can distribute the air evenly and constantly.

Haier Geos Plus 2
7/10

Best value for money

Haier Geos Plus

The best entry-level wall air conditioner

Haier introduces its new Geos Plus wall air conditioner with R32 refrigerant. Thanks to the Intelligent Air function, it ensures a more uniform air distribution. Given the price, it will be perfect for small budgets.

392 £ on Manomano

While the Japanese are the undisputed masters of air conditioning, the Chinese dominate the world market with their low-cost units. In this sense, the Haier Geos Plus is primarily aimed at those looking for an efficient wall-mounted air conditioner at a low price. This one offers a nominal capacity of 3.2 kW or 12,000 BTUs in cooling and 3.4 kW in heating. The unit operates on a single-phase power supply of 220-240 V / 50 Hz.

Surprisingly at this price, it is a fairly quiet wall-mounted air conditioner, with a sound pressure level of 38 dB at the lowest speed and a sound power rating of 56 dB. The Intelligent Air feature automatically adjusts the air conditioner's louvers to better distribute the airflow according to the set mode. In air conditioner mode, the louvers direct the airflow upward. The cool air flowing downward lowers the room temperature evenly and quickly. In heating mode, the louvers direct the airflow downward.

Remko KWT 240 DC 3
9/10

Best premium value

Remko KWT 240 DC

The best high-end wall air conditioner

The Remko KWT 240 DC is a German-made wall-mounted air conditioner that is particularly strong. Easy to install and remove, it has a cooling capacity of 18,000 BTUs and can be used as a space heater.

1 879 £ on Amazon

Like all air conditioners (wall, split or mobile) from the German brand, the Remko KWT 240 DC is expensive. But I promise you, you get what you pay for. It's a wall-mounted reversible air conditioner measuring 55.5 cm wide and 10.3 cm high. Moreover, this wall-mounted air conditioner is easy to install and remove. Reversible, it has a cooling capacity of 18,000 BTU, ideal for a room of 80 m² with an airflow of 400m3 / h.

The main advantage of the Remko KWT 240 DC? It does not require an outdoor unit: 2 holes to fix it to the wall will suffice. Moreover, this wall-mounted air conditioner has a heat pump function and a winter fan speed control, which allow it to work properly when the outside temperature is low (-15 °C). The power in heating mode reaches 3.22 kW.

Klarstein Windwaker Eco 4
8/10

Powerful

Klarstein Windwaker Eco

A very powerful split wall air conditioner

The Klarstein Windwaker Eco series is best known for its self-cleaning function. The model presented here has an A+ energy efficiency rating despite its phenomenal cooling power (24,000 BTU).

719 £ on Amazon

The 24,000 BTU version of the Klarstein Windwaker Eco is impressive in more ways than one. First of all, this power allows it to cool the air in very large rooms, up to 117 m². We are also speechless because of the A++ / A+ energy class of the device, never seen at this level. To put it simply, this wall-mounted air conditioner has the energy-saving function while ensuring lightning temperature drops in the room. And at maximum power, the noise level is only 67 dB.

Apart from its air cooling performance, this reversible wall air conditioner has a heating capacity of 6.9 kW. With 6 fan speeds, 3 night modes and horizontal and vertical oscillation, the Windwaker Eco will adapt to everyone's needs. And how can we not mention the self-cleaning function, which makes life easier for users? Note the airflow of 1250 m³/h in cooling mode.

Mitsubishi MSZ-DM35VA 5
8/10

Reversible

Mitsubishi MSZ-DM35VA

The best 12,000 BTU reversible wall air conditioner

The Mitsubishi MSZ-DM35VA is a reversible wall-mounted air conditioner with an A+ energy class. It uses an inverter compressor for its refrigerant gas, while offering a good quality/price ratio.

560 £ on Amazon

Ideal for use in a room as large as 40 square meters, this 12,000 BTU reversible wall-mounted air conditioner features a wide-angle airflow system, as well as an automatic swivel vane, allowing you to extend the airflow to all corners of a room. Designed to heat or cool, the Mitsubishi MSZ-DM35VA offers a versatile yet affordable air conditioning solution.

Indoors, the maximum sound level is 52 dB. The unit runs on R410A gas and has an A+ energy rating in both cooling and heating modes . Unlike conventional models with a grilled air intake, the Mitsubishi MSZ-DM35VA has a flat panel finish with smooth contours. There is also a top air intake that not only improves aesthetics, but also helps reduce operating noise.

Buying guide • November 2023

Best wall-mounted air conditioner (fixed air conditioner)

Any specific needs?

The best wall air conditioner in 2021

The best entry-level wall air conditioner

The best high-end wall air conditioner

A very powerful split wall air conditioner

The best 12,000 BTU reversible wall air conditioner

Your guide : Samuel

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Comparison table of the best wall-mounted air conditioners (stationary air conditioners)

TOP OF THE TOP CHEAP HIGH END EXCELLENT REVERSIBLE
Daikin Sensira FTXC35B 6
9/10
Haier Geos Plus 7
7/10
Remko KWT 240 DC 8
9/10
Klarstein Windwaker Eco 9
8/10
Mitsubishi MSZ-DM35VA 10
8/10
OUR SELECTION
Daikin Sensira FTXC35B
Haier Geos Plus
Remko KWT 240 DC
Klarstein Windwaker Eco
Mitsubishi MSZ-DM35VA
How could we do a wall air conditioner comparison without talking about Daikin? With a power of 3.5 kW in heating and 12,000 BTU in cooling the Daikin Sensira FTXC35B is a must.
Haier introduces its new Geos Plus wall air conditioner with R32 refrigerant. Thanks to the Intelligent Air function, it ensures a more uniform air distribution. Given the price, it will be perfect for small budgets.
The Remko KWT 240 DC is a German-made wall-mounted air conditioner that is particularly strong. Easy to install and remove, it has a cooling capacity of 18,000 BTUs and can be used as a space heater.
The Klarstein Windwaker Eco series is best known for its self-cleaning function. The model presented here has an A+ energy efficiency rating despite its phenomenal cooling power (24,000 BTU).
The Mitsubishi MSZ-DM35VA is a reversible wall-mounted air conditioner with an A+ energy class. It uses an inverter compressor for its refrigerant gas, while offering a good quality/price ratio.
Cooling capacity
12,000 BTU
12,000 BTU
18,000 BTU
24,000 BTU
12 000 BTU
Energy efficiency class
A++ / A+ (heating)
A++ / A+ (heating)
A+ / A (heating)
A++ / A+ (heating)
A+ / A+ (heating)
Noise level
55 dB
56 dB
58 dB
63 dB
52 dB
Optimal cooling coverage
35 m²
35 m²
80 m²
70-117 sq. m.
40 m²
Type of refrigerant used
R32 gas
R32 gas
R410A gas
R290 gas
Gas R410A

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Buying guide - wall-mounted air conditioner (fixed air conditioner)

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How to choose your wall-mounted air conditioner (fixed air conditioner)

Faced with the multiple offers on the market, the choice of a wall-mounted air conditioner can be quite complex. In order to find the best equipment for your needs, a number of criteria must be taken into account. Here are some tips on how to choose the right unit.

#1 - The technology

The type of technology used by the manufacturer can help you in your choice. Manufacturers are constantly innovating and offering more and more advanced, environmentally friendly units. Check the type of technology and favor models with low energy consumption. For your comfort, choose quiet units. Your air conditioner should be able to act as a heater during the cold season, generating warm air to heat the rooms.

#2 - Room air treatment

The choice of an air conditioner that can cool and dehumidify the air can be interesting, especially if you live in a hot and humid region. Brand-name models offer a variety of features. The best air conditioners with an ionizer mode can purify the air in the room, thanks to the action of negative ions.

Some models have electrostatic air filters to remove dust and bacteria. Units equipped with an activated carbon filter have the advantage of eliminating bad odors. Check the features offered by the manufacturer: depending on the climate and the ambient temperature, it may be wise to choose an air conditioner that can be used in ventilation mode.

#3 - The cooling capacity

The cooling capacity of the air conditioner determines the unit's ability to cool your home. If the wattage is underrated, the unit must run much longer to achieve cool air in the rooms. If you choose a unit that is too powerful for the size of your home, it will have a significant impact on your electricity costs. In order to properly evaluate the necessary power, it is recommended to carry out a thermal assessment, which will take into account various parameters: the number of occupants, the dimensions of the rooms, the insulation, the sunshine, the height of the ceiling...

#4 - After-sales service

To

ensure the longevity of your wall-mounted air conditioner, regular maintenance is essential. Before you buy, ask about the availability of replacement parts. The quality of the after-sales service is also a factor to consider. Major brands usually have a strong service team and can take care of your operating problems quickly.

#5 - Noise level

Thenoise emitted by an air conditioner is an important parameter, on which the comfort of use will depend. Be aware that the packaged air conditioner will be noisier than a wall-mounted air conditioner, with a sound level between 50 and 70 dB. The split air conditioner has a sound level between 45 and 55 dB. If the unit is to be installed in a bedroom, choose a model with the silent option. With this feature, the noise level is gradually reduced to below 20 dB.

How do I clean the air filters in my wall-mounted air conditioner?

Air conditioning should be serviced regularly to ensure proper operation. Failure to do so can result in increased energy consumption.

Cleaning the air filters is one of the most important steps in maintaining an air conditioner. It should be done every 2 weeks. During the maintenance, you may be able to change air filters that are in poor condition.

  • Turn off your unit before servicing. Open the air conditioner case and unclip the filters from their base.
  • Gently tap the air filters to remove dust, and remove any dusty lint from the grilles by hand. Then remove the dust residue with a vacuum cleaner fitted with a suitable nozzle.
  • Next, immerse the filters in a basin of warm water. Gently rub them with a sponge containing Marseille soap to remove persistent dirt.
  • Finish by rinsing with clear water and let the filters dry in the open air.

Attention

Before servicing the air filters, remember to turn off the air conditioner's indoor unit and unplug it.

Heat and additional modes of wall-mounted air conditioners

Wall-mounted air conditioners with extra modes can keep your space comfortable year-round. In addition to cooling, the most common additional mode that customers look for is "heating" mode. Many wall air conditioners offer extra heat during the winter months and typically use electric heat or a heat pump to provide heat.

Electric heat uses an internal coil to produce heat and a fan to disperse it throughout your space. A heat pump is the opposite of an air conditioner: it transfers heat from a cooler area using mechanical energy. Because heat pumps move heat instead of creating it, they are generally more efficient than electric heating systems. Electric heaters tend to be more reliable and are popular in areas of greater climate change.

The heating mode is not intended to heat your entire home and should be considered as supplemental heating for specific rooms. The other most sought after modes in a wall air conditioner are :

  • Dehumidification mode helps the air conditioner remove excess moisture from your home.
  • Fan-Only mode is ideal for keeping the room free of clutter on days when Cool mode is not needed.
  • Standby mode is a quieter operating mode that uses less energy and is a great option when you're sleeping.

The different types of wall-mounted air conditioners (stationary air conditioners)

Buying a wall-mounted air conditioning system for the first time can be confusing. To help, here's a brief guide to the different types of wall-mounted air conditioners that use a refrigerant to move heat energy from the inside to the outside.

Wall-mounted packaged air conditioners

Wall-mounted packaged air conditioners are an attractive solution for older buildings where planning does not allow for the installation of an external condenser. The wall-mounted packaged air conditioner attaches high on the wall and two air pipes are routed from the back directly through the wall.

The disadvantage of all types of packaged air conditioners The disadvantage of all types of wall-mounted split units is that they are slightly deeper than wall-mounted splits, because the condenser is contained within the wall unit. They usually have a heat pump so that the air can be heated in winter and cooled in summer. The best cheap air conditioners Are often one-piece wall-mounted air conditioners

Wall-mounted split air conditioners with technical installation

Thistype of wall-mounted air conditioner does not have quick-connect interconnecting pipes supplied with the air conditioner, which means that the installation of the wall-mounted unit and outdoor condenser is custom-made for the building, making it necessary to hire a professional .

Although the installation of these air conditioners is quite costly, the advantage is that the installation is neat and fits the building perfectly which inevitably increases the resale value of the building. There is a wide variety of engineered wall-mounted air conditioners on the market, so there is a wider choice of capacities, features and aesthetics.

Easy to install wall-mounted split air conditioners

In contrast toengineered air conditioners, so-called "easy-mount" air conditioners come with the piping and interconnecting cable in a plastic sheath or "umbilical cord" that has a quick-connect end. The system, including the tubing, is pre-charged with refrigerant and is designed so that the unit can be installed by you even if you're a bit handy with DIY.

However, recent regulatory changes require that these now require installation by a qualified refrigeration engineer. This change has meant that the choice of this type of split air conditioner has decreased, mainly because if it has to be installed by a refrigeration engineer, it is actually more expensive than an engineered model.

Solar wall air conditioner or reversible air conditioner?

Solar wall air conditioner

The electricity required for its operation is generated by photovoltaic solar panels. The device is then connected to the solar cables. One of the main advantages of using a solar device is, of course, that the energy source is free. Another advantage is that the solar air conditioner is environmentally friendly and does not pollute the atmosphere. It uses refrigerants, which are present in cold production systems.

Reversible air conditioner

It combines the functions of heating and cooling. Better known as an air-to-air heat pump, the device allows for significant energy savings. It can be used all year round, in winter and summer. During the cold season, the calories in the air are captured by the outdoor unit. The warm air is then distributed through the rooms. In summer, the indoor unit expels the warm air into the house.

Verdict

The choice of a wall-mounted air conditioner can be quite difficult, given the various technologies embedded in the most recent models. However, for the more eco-friendly, solar-powered units are to be preferred. On the other hand, if you want both heating and air conditioning, the reversible one is ideal.

Why buy a wall-mounted air conditioner?

Quickly controlled temperature

Because it is positioned close to the ceiling where heat and moisture wander, a wall-mounted air conditioner works efficiently. In no time at all, it can cool or heat any room to the temperature you want. It then maintains that temperature throughout the day.

Easy to install

A wall-mounted air conditioner can be installed as part of a new build or as part of a renovation to replace your heating system. There is no need to call in an engineer or a specialist in the field to set it up. Moreover, it does not require major structural work. In addition, an installation manual is included with the unit.

Small footprint

Today's wall-mounted air conditioners are increasingly compact and discreet, taking up little space. It is available in several shapes that come in neutral or coloured designs. It will be easy for you to find a model that will blend in perfectly with your interior decoration.

Silencer

Thanks to advances in technology, wall-mounted air conditioners are also getting quieter. Long gone are the ranges that emitted very high levels of decibels. In order to optimize acoustic comfort, today's air conditioners run almost inaudibly. This allows you to work well during the day and sleep better at night.

Adjustable air flow

Do you want to send the air through the whole room or directly to you? Thanks to the horizontal and vertical slats, the air flow can be controlled. You can regulate the air direction with the remote control according to your wishes.

Economical

A wall-mounted air conditioner consumes little electricity thanks to its coefficient of performance of between 4 and 5. You can control the power of your unit with other well thought out features to reduce energy expenditure, while optimizing comfort and having well sanitized air.

The best brands of wall-mounted air conditioners (stationary air conditioners)

In our opinion, the best brands of wall-mounted air conditioners (stationary air conditioners) in 2022 are :

Daikin
Mitsubishi Electric
Fujitsu
Hisense
Remko

Daikin is a leading brand in wall-mounted air conditioners, with 17 subsidiaries worldwide, 4 sales offices and a network of sales contacts in more than 50 countries in Europe, the Middle East and Africa, and is a trusted name in stationary air conditioners.

After Daikin, Mitsubishi Electric is the best brand of wall-mounted air conditioners present in the UK. Its products are highly reputed and most professionals use them for their premises and industrial installations.

Headquartered in Shiodome City Center Minato (Tokyo), Fujitsu is a brand mainly specializing in semiconductors, software and IT service supplies. It is the world's third largest IT services company.

Hisense is a Chinese brand that focuses on Full HD and 4K UHD TVs, smartphones, combination and American refrigerators and freezers. In China, it is No. 1 in TVs and is among the best in home appliances.

It is a German company, present all over Europe and specialized in heating and air conditioning technology. Remko air conditioners are not the most affordable on the market. But they are among the most efficient. And that's what you want in hot weather.

What is the price for a wall-mounted air conditioner (fixed air conditioner)

The diagram below will help you to get an idea of the typical prices for each price range (entry-level, mid-range and high-end).

However, more expensive does not necessarily mean better.

We therefore advise you to always consult our ranking before deciding, rather than blindly relying on price ranges.

Entry-level
200 £ to 800 £
Mid-range
800 £ to 1800 £
High-end
more than 1800 £
Price range diagram

Tips

Do not use your wall-mounted air conditioner too frequently

When you constantly run your wall air conditioner, your body will start to get used to the coolness of the air. As a result, you will feel a big difference in temperature between your indoor and outdoor environment, and this may affect your health. Because of this, it would be better to limit the use of the air conditioner.

Save on the consumption of your wall air conditioner

The air conditioner is only useful when you are at home. If you're out running an errand or going to work, it's out of the question to leave it running. This will save you money on your electric bill.

Remember to maintain your air conditioner by calling a professional

It is true that some maintenance of your air conditioner is your responsibility, such as regular cleaning of the air filters and the outside of the unit. However, it is necessary to have it checked by a certified professional at least once a year. The indoor unit of your wall-mounted air conditioner should be placed at a minimum height of 2 meters, on a sturdy support. Also, the air diffusion should not be hindered or directly directed to people for their own health. As for the outdoor unit, it should be installed vertically in a place protected from wind and heat.

How to position your wall-mounted air conditioner

There are various ways to cool your home without using air conditioning. First, be sure to open the windows in the early morning and at night when the wind is cool. You can also use blinds to prevent the sun from heating your windows. Having green plants in your home is also a great way to lower the temperature.

Cool your home even without air conditioning

FAQ

Which wall-mounted air conditioner to choose?

The best wall air conditioner depends on your needs and budget. Read our buying guide to find out which products are the best at the moment.

How does a wall-mounted air conditioner work?

A wall-mounted air conditioner works by drawing warm air from the room into the unit. The warm air that enters the unit is led over the air conditioning evaporator and will be cooled. The cooled air is blown back into the room. The air conditioner pushes the warm air from the condenser through the vents on the back of the unit so that it does not heat the room.

Are wall-mounted air conditioners quiet?

Overall, wall-mounted air conditioners are quiet comfort solutions. Designed to be installed in bedrooms, hotel rooms, dorm rooms, assisted living facilities and more, they are designed for situations where noise levels are important. Some wall-mounted units are as quiet as 50 dB, which is about as loud as the refrigerator in your kitchen.

Can a wall-mounted air conditioner be installed in any room?

A wall-mounted air conditioner is a good choice for cooling a room if you don't want to board up the window or if a particular room has no window. They are reasonably energy efficient and have a wide range of capacities. If you don't have an existing hole in the wall, the unit may require professional installation.

How to install a wall-mounted air conditioner?

Installation involves drilling a hole in a wall to mount the air conditioner. Brackets or sleeves are used to support the weight of the unit. Once the air conditioner is installed in the wall, it is plugged into the nearest electrical outlet and a weatherproof stripping is placed around the air conditioner to prevent outside air and water from entering the building.

Sources

Note: Below are some of the sources we have consulted in writing this article. Links to other sites are not continuously updated. It is therefore possible that a link may not be found. Please use a search engine to find the desired information.
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  12. , learnmetrics.com
  13. , pickhvac.com
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  18. , chauffage-et-climatisation.fr
  19. , mphenligne.com
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  21. , amazon.co.uk
  22. , climatiseurmural.org
  23. , testepourvous.com
  24. , chauffage-et-climatisation.fr
  25. , tranclimatisation.com
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  33. , fr.411answers.com
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Updates

March 2022 : Translation of this buying guide from our partner meilleurtest.fr

See more
Our selection
Daikin Sensira FTXC35B 11
Daikin Sensira FTXC35B
Haier Geos Plus 12
Haier Geos Plus
Remko KWT 240 DC 13
Remko KWT 240 DC
Klarstein Windwaker Eco 14
Klarstein Windwaker Eco
Mitsubishi MSZ-DM35VA 15
Mitsubishi MSZ-DM35VA

Lecteurs

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