Last updated: August 9, 2021

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If you want to retreat to a cooled flat during the hot summer months, invest in an inverter air conditioner. The integrated inverter technology of this air conditioner keeps your flat permanently cool. The technology enables lower power consumption despite continuous performance by being able to regulate the temperature and not running at full speed. Even in the winter months you are well provided for, as an inverter air conditioner also offers the option of heating the flat.

With our inverter air conditioner test 2022 we want to make sure that you are fully informed about the product. We have defined two product types, which include the inverter air conditioner as a split and as a monobloc unit. In addition, we have selected the different advantages and disadvantages so that you can find the air conditioner that is perfect for you.


  • The integrated inverter technology of an inverter air conditioner generates a permanently cooled flat by maintaining a constant regulated temperature.
  • Basically, inverter air conditioners are also differentiated between two product types, a split and a monobloc unit. While the split unit consists of several components, the monobloc unit comprises only one element.
  • An inverter air conditioner is ideal for a long-term investment, as it is durable and energy-saving. On the other hand, it is somewhat more expensive to purchase than a classic air conditioner.

The Best Inverter Air Conditioner: Our Picks

Buying and evaluation criteria for inverter air conditioners

If you have decided to buy an inverter air conditioner, you are faced with a large selection. In the following, we have listed some criteria that should help you in your purchase decision. In summary, these are:

In the following, you will find out which aspects you should pay attention to when buying an inverter air conditioner.


Basically, inverter air conditioners, just like conventional air conditioners, differ between a monobloc and a split unit. The main difference between the two types of units is that a monobloc air conditioner consists of only one element.

A split unit, on the other hand, usually consists of two or more components. Thus, the indoor unit of the split air conditioner is located in the room and the associated compressor is located on the outside wall. In a monobloc unit, the indoor and outdoor units are contained in one element. In the guide to this article later on, we have listed both the advantages and disadvantages of the two product types to help you make your decision.

Energy efficiency class / performance

If you have decided on an inverter air conditioner, you should find out about the energy efficiency class and the performance of the product before buying.

In principle, inverter air conditioners are more energy-efficient and durable than conventional on-off air conditioners due to the inverter technology.

The technology ensures that less electricity is consumed. So if you are looking for an air conditioner that does not consume a lot of electricity, an inverter air conditioner might be right for you. Split units also have a higher energy efficiency compared to monobloc air conditioners, which can be attributed to the external compressor.

Size / Dimensions

The different product types of inverter air conditioners naturally have an influence on the size and dimensions of the unit. A split unit consists of two elements and therefore has a larger size and overall higher weight than a monobloc air conditioner.

The weight of the indoor unit of an inverter air conditioner is usually around 15 kilograms upwards. The outdoor unit usually weighs about 35 kilograms upwards. The indoor unit of a monobloc unit weighs approximately 35 to 39 kilograms. Some units may exceed this weight.


In principle, both split and monobloc air conditioners have a high noise level.

However, air conditioners with integrated inverter technology are quieter than classic air conditioners.

If you want to position the air conditioner in the bedroom, for example, an air conditioner with such technology is suitable because it is quiet and disturbs your sleep less.


Many inverter air conditioners have simple and convenient controls.

Many models can be easily controlled via WLAN, Wifi, apps or remote controls.

Some units can be controlled from any location using an app on your smartphone or tablet. This way, you can control your air conditioner conveniently, even if you are not on site.

If you prefer to control your air conditioner manually or with a remote control, this is of course also possible. Just be aware that there are inverter air conditioners with this function. Maybe it will come in handy one day when you are not at home. Furthermore, many devices offer the possibility to connect the system with the Smarthome function or the WLAN.

Guide: Questions you should ask yourself before buying an inverter air conditioner

Before you decide to invest in an inverter air conditioner, we have selected a few facts and answers on the subject. In this way, we want to support you in your decision.

What is special about an inverter air conditioner and what advantages does it offer?

Basically, an inverter air conditioner differs from a conventional on-off air conditioner in several aspects. The latter of the two is switched on and off as needed.

The inverter air conditioner, on the other hand, runs continuously but still has a lower power consumption.

This technology works by regulating the power as needed rather than using it completely all the time. This is done by adapting the speed to the environment. This makes the inverter air conditioner up to 30% more energy-efficient than a classic air conditioner.

In addition, an air conditioner with inverter technology is characterised by its durability. Although it is more expensive to buy than an on-off air conditioner, you can use it for a long time with proper care and regular maintenance. In general, inverter air conditioners are quieter in operation than traditional air conditioners.

If you are looking for an air conditioner that is durable, has a low noise level and guarantees low power consumption, an air conditioner with inverter technology is the right choice for you.

Inverter Klimaanlage-1

By using an inverter air conditioner, you can retreat to a comfortably cooled home.
(Image source: Toa Heftiba / Unsplash)

What types of inverter air conditioners are there?

Just like classic air conditioners, inverter air conditioners also distinguish between different types of products.

They can also be divided into monobloc and split units. The former of the two consists of only one element. Split units comprise two or more components. In the following, we have selected the advantages and disadvantages of the two product types so that you can get an overview of the devices.

Inverter air conditioner as a split unit

Inverter air conditioner as a split unit

A split air conditioner with integrated inverter technology offers some advantages and disadvantages that you should inform yourself about in advance. We have listed a few below.

  • Durability
  • quiet operation
  • low power consumption
  • powerful
  • high installation effort
  • fixed installation
  • expensive

The inverter air conditioner is characterised by its durability, low-noise operation and energy efficiency, which results in lower power consumption. However, as a split unit, the installation effort is significantly higher because it is a fixed installation. Therefore, the inverter air conditioner as a split unit is very expensive compared to an inverter air conditioner as a monobloc unit or a classic air conditioner.

Inverter air conditioner as a monobloc unit

Inverter air conditioner as a monobloc unit

The second product type of the inverter air conditioners is the monoblock unit. This air conditioner consists of only one element and has inverter technology. Here, too, we have filtered out some advantages and disadvantages.

  • Mobility
  • durability
  • lower power consumption
  • easy installation
  • no outdoor unit required
  • less powerful

The inverter air conditioner as a monobloc is also characterised by its durability and low power consumption. However, it does not require an outdoor unit and can therefore be mobile. Since it is not a fixed installation in this case, the installation of this air conditioner is much easier. However, monobloc air conditioners are usually less powerful than split units because they do not have an external compressor.

For whom are inverter air conditioners suitable?

Inverter air conditioners are particularly suitable for a project that will be used for several years. For example, if you live in an attic flat, you might consider investing in an inverter air conditioner.
It is suitable for both cooling in summer and heating in winter.

Although such an air conditioner pays off with lower electricity consumption, it is somewhat more expensive to buy than classic air conditioners.

Therefore, you should consider in advance whether an air conditioner with inverter technology suits your ideas. If you are only looking for a smaller and cheaper version of an air conditioner or its functions, we have selected some alternatives to an inverter air conditioner for you in the further course of this article.

What does an inverter air conditioner cost?

The purchase of an inverter air conditioner is significantly more expensive compared to an air conditioner without inverter technology. Nevertheless, it makes sense to invest in such a technology, as the operating costs are considerably lower and guarantee a lower power consumption. Below we have provided you with an overview of the price range of an inverter air conditioner and a classic air conditioner. The tables also include the division into split and monobloc units.
Inverter air conditioner Price range Classic air conditioner Price range
Split unit ca.600-1.800€ Split unit ca. 350-900€
Monoblock unit ca. 500-1.500€ Monoblock unit ca. 200-800€

As can be seen in the table, a classic air conditioner is much cheaper to buy than an inverter air conditioner. The prices can vary depending on the size and additional equipment and can go beyond this.

What are the alternatives to an inverter air conditioner?

If an inverter air conditioner does not meet your expectations and you prefer to look for another product, we have listed a few alternatives here.
Alternative Description
Classic air conditioner A classic air conditioner, for example as a mobile air conditioner, can do its job practically anywhere.
Fan A fan swirls the air around and thus provides you with cooling.
Dehumidifier The dehumidifier helps to keep the air dry so that mould cannot develop.

If you live in a flat that you don't own, but which is only a rented flat, you could think about a mobile air conditioner. This is practical and convenient to take with you when you move, as these units are usually handy and not too heavy. Another alternative is a fan. If you only want to cool a small room, such as your bedroom, you can use the classic fan. You can turn it on and off as needed. The fan is a cost-effective alternative to an air conditioner.

Are inverter air conditioners also suitable for heating a room?

Inverter air conditioners are not only suitable for cooling in summer, but also for heating in winter. If you are looking for a product that provides both functions, the inverter air conditioner may be right for you.

Inverter Klimaanlage-2

The inverter air conditioner allows you to heat your home in winter. So nothing stands in the way of a cosy evening at home.
(Image source: Paola Chaaya / Unsplash)

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