It's the height of summer, it's 30 degrees outside and you want to find refuge from the heat in your flat? Unfortunately, you find that the temperatures inside are similar and there is no cooling in sight. The installation of a mobile air conditioner can help you and provide sufficient cooling.
With our large mobile air conditioner test 2021 we want to help you find the best mobile air conditioner for you. We compare monobloc, split and non-exhausting air conditioners with each other and tell you what the advantages and disadvantages of the individual models are. With this guide, you can keep a cool head and make the right purchase decision!
- 1 Weekly newsletter with the best personal finance tips
- 2 Summary
- 3 The Best Mobile Air Conditioner: Our Choices
- 4 Buying and evaluation criteria for mobile air conditioners
- 5 Decision: What types of mobile air conditioners are there and which one is right for me?
- 6 Guide: Frequently asked questions about mobile air conditioners answered in detail
- 6.1 What is a mobile air conditioner?
- 6.2 What are the different types of mobile air conditioners?
- 6.3 What does a mobile air conditioner cost?
- 6.4 What alternatives are there to the mobile air conditioner?
- 6.5 What is the power consumption of a mobile air conditioner?
- 6.6 What is the best way to transport a mobile air conditioner?
- 6.7 How do I clean a mobile air conditioner properly?
- Mobile air conditioners are used to keep the room temperature low or to cool it. They are particularly compact and flexible in use.
- Essentially, there are mobile air conditioners with an exhaust air hose in the monobloc and split versions, as well as models that cool without an exhaust air hose. These non-exhausting air conditioners work with the condenser principle.
- The energy efficiency and consequently the power consumption of mobile air conditioners is an important point in deciding on the right product. The higher an air conditioner is rated in the energy efficiency categories, the more efficiently it cools.
The Best Mobile Air Conditioner: Our Choices
Buying and evaluation criteria for mobile air conditioners
Here we will show you which criteria you should pay attention to in order to choose the right one from the wide range of mobile air conditioners. The criteria that will help you compare mobile air conditioners include:
- Energy efficiency class
- Maximum cooling capacity
- Suitability for maximum room size
- Size and weight
In the following paragraphs, we explain in more detail what you should look for in each criterion.
Energy efficiency class
As with any electronic device, it is also important to pay attention to the energy efficiency class of mobile air conditioners. Energy efficiency in general indicates the ratio between the energy supplied and the energy yield.
Mobile air conditioners are classified in energy efficiency classes A+++ to D, with A+++ being the best class.
This means that the better an air conditioner is rated, the lower its electricity costs. However, what also needs to be considered is the interplay between price and energy efficiency. Despite the higher initial cost of an appliance with good energy efficiency, one should also keep in mind the lower electricity costs incurred while using the air conditioner.
Maximum cooling capacity
When choosing the right mobile air conditioner, the maximum cooling capacity is of course also decisive. The cooling capacity is not only an essential criterion for measuring electricity consumption, but also for the place of use. Basically, there are two units to look for when buying an air conditioner. The first is the unit BTU, which is the abbreviation for British Thermal Unit.
This describes the heat energy used to heat one pound of water by one degree Fahrenheit. On the other hand, the unit watt is used, which is more common in Germany. BTU and watt are of course also related - 1000 BTU/h correspond to 293.71 watts. Good mobile air conditioners are available from 1000 watts.
Suitability for maximum room size
As already briefly mentioned in the previous point, the maximum output of a mobile air conditioner plays a role in its use. This also includes suitability for the maximum room size.
When selecting a suitable air conditioner, the room size is primarily important. Then there is the question of whether the room is well insulated and how strong the direct sunlight is.
If the room is well insulated, the number of square metres is multiplied by 60; if it is poorly insulated and exposed to strong sunlight, the number is multiplied by 100.
The result is the cooling capacity suitable for the room size. Basically, a monobloc air conditioner is sufficient for rooms up to about 65 cubic metres, and a split air conditioner should be used for larger rooms up to about 120 cubic metres.
Depending on where you want to use the mobile air conditioner, the noise level naturally also plays a major role. In principle, mobile air conditioners are louder than permanently installed air conditioners due to the external removal of the air.
In general, it is usually the case that air conditioners are a little louder at the beginning of their operating time because they run at maximum power. In normal operation, mobile air conditioners for indoor use have an average decibel level of around 20 to 50 decibels. This corresponds, at maximum, to about the volume of a normal conversation.
Size and weight
The size and weight of mobile air conditioners are also not unimportant, as they have a considerable influence on the installation and the place of use. The smaller and lighter a unit is, the more compact and easier it is to install. On average, the size dimensions of mobile air conditioners are around 90 x 50 x 30 cm. It should be noted that monobloc units are usually a little smaller than split units.
This difference is also relevant for the weight. The average weight of monobloc air conditioners is between 10 and 30 kilograms, while split air conditioners are considerably heavier at up to 50 kilograms.
Decision: What types of mobile air conditioners are there and which one is right for me?
Of course, there is not just one type of mobile air conditioner. Essentially, a distinction is made between three different types, which, together with their advantages and disadvantages, are shown in the following table.
|Monobloc air conditioner||Single unit, handy and easy to transport||Requires external exhaust, often quite loud depending on sound insulation|
|Split air conditioner||Relatively quiet, can be used for large rooms||Less mobile than monobloc air conditioner, external exhaust|
|Non-exhausting air conditioner||Inexpensive and handy, works with condensation||Not suitable for large rooms due to low power, often very loud|
If you want to learn more about the different types of mobile air conditioners, you can read more in the next sections.
Guide: Frequently asked questions about mobile air conditioners answered in detail
What is a mobile air conditioner?
The mobile air conditioner works on the same principle as a refrigerator, for example: the coolant in the unit extracts heat from the air and cools it to a comfortable temperature compared to the outside temperature.
The decisive advantages of a mobile air conditioner are its handiness and flexibility. It can be easily transported and therefore flexible installation is possible in almost all rooms. The only prerequisite is that it be installed near a window or door so that the warm air can be conveyed outside through the exhaust hose.
What are the different types of mobile air conditioners?
Basically, as already described in detail in the previous section, a distinction is made between three different designs. There are:
- Monobloc units
- Split units
- Non-discharging units
Each of these types of design offers individual differences. Depending on what you have in mind, there are also significant differences in colour, size and function. Many designs of modern air conditioners offer additional functions besides the cooling function. For example, they also function as a dehumidifier, fan or heater. Newer models even have WLAN and are thus even more convenient to operate.
What does a mobile air conditioner cost?
|Type||purchase costs||operating costs|
|Non-removable air conditioner||low||high|
The prices of mobile air conditioners vary greatly depending on the desired performance, brand and available features. Inexpensive models can be purchased for as little as around 100 euros, while the price range extends to around 800 euros.
What alternatives are there to the mobile air conditioner?
If you are looking for alternatives to mobile air conditioning, we have collected some options for you here:
- Fan: As a general rule, a ceiling fan cools better than a floor fan because it distributes the draught better in the room. Fans are generally very inexpensive to buy and have a much lower power consumption than mobile air conditioners. The decisive disadvantage, however, is that a fan only has an effect on a limited space. In addition, the air is not actually cooled, but the resulting draught only ensures that you feel a cooling sensation.
- Room humidifier: A room humidifier is essentially the same as a non-exhausting air conditioner, as it also works with a water tank and the principle of condensation. The room air is enriched with water, which increases the humidity and improves the existing room climate. However, the cooling is only limited and, in terms of time, cannot be used for as long as an actual mobile air conditioner.
- Fighting the heat yourself: In summer, it is especially important to ventilate properly. The best time to ventilate is in the early morning, when the outside air has not yet heated up. During the day, you should make sure that windows facing the sun are well closed and, at best, darkened.
What is the power consumption of a mobile air conditioner?
What is the best way to transport a mobile air conditioner?
Others are convinced that the units can also be transported lying down. Possible dangers, such as the suspension being damaged or even jumping out of the holder, are technically quite possible, although not probable. If there is no other option than to transport it lying down, then put it upright after transport and wait around 24 hours before putting it into operation.
How do I clean a mobile air conditioner properly?
If the air conditioner is heavily used, it is necessary to clean it weekly. Not only will this prevent the formation of unpleasant odours, but it will also optimise the performance of the air conditioner. When cleaning, not only the air filter but also the condenser should be cleaned. It is important to disconnect the unit from the power supply!
- Air filter: For a major cleaning of the air filter, it is sufficient to clean the grille of the air conditioner with a hoover. To also clean the air filter of smaller dirt particles and bacteria, you should remove it and wash it with soapy water. After the filter is dry again, it can be reinstalled normally.
- Condenser: The condenser is cleaned with foam sprays, which are available in specialised shops. These disinfect the ventilation system and rid the unit of germs. For mobile air conditioners with a condensation water tank, it is necessary to empty it daily.
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