Last updated: August 10, 2021

Welcome to our big convector test 2021. Here we present all the convectors we have tested in detail. We have compiled detailed background information and added a summary of customer reviews on the web. We would like to make your purchase decision easier and help you to find the best convector for you.

You will also find answers to frequently asked questions in our guide. If available, we also offer interesting test videos. Furthermore, you will also find some important information on this page that you should definitely consider if you want to buy a convector.


  • Convectors are heating devices that cause air to circulate in the room by drawing in, heating and discharging air, thereby heating the room.
  • Basically, a distinction is made between three different types of convectors: mobile convector or free-standing convector, wall-mounted convector and flat convector or underfloor convector.
  • Convectors can never replace a central heating system, but should only provide supplementary heating.

The Best Convector: Our Choices

Guide: Questions you should ask yourself before buying a convector

What is a convector?

A convector is a direct heating device that is used to heat the air in a room. In contrast to a classic radiator, which generates radiant heat, convectors generate convection heat. Although radiant heat is healthier than convection heat and also feels more pleasant and warmer, convection heat heats the room more evenly. How such convection heat is generated is explained in the next paragraph.

How does a convector work?

A convector uses warm water and air circulation in the room to increase the room temperature. In doing so, the convector sucks in the air flowing in below and heats it. To do this, the convector is equipped with a pipe and aluminium fins surrounding the pipe.

The warm air leaves the convector again at the top and also continues to rise upwards in the room. In this way, the room is heated. The air cools down again, falls down and can then be sucked up again by the convector. This creates an air circulation that warms the room.

Since a convector works with air circulation, clothes must never be hung up to dry on it!

For which rooms is a convector suitable?

Since convectors come in many different sizes and shapes, they can be used pretty much anywhere. They are especially often used in public buildings or shops, for example in large shop windows.

Convectors are particularly suitable for heating rooms that are rarely used, such as guest rooms (Image source: / Hans).

Convectors are also often used to heat rarely used rooms, such as guest rooms. In principle, however, convectors should not and cannot be used as the sole room heater. However, they are well suited as supplementary heaters, for example in the bathroom or on particularly cold days.

When does a convector make sense?

Due to the way they work, convectors give off heat very quickly and are also energy-saving. Due to the lightness and mobility of mobile convectors, they are particularly suitable, for example, when there is a higher heat demand on some days than on average days.

For example, on the first cold days of autumn or when the air cools down more than average in summer due to persistent bad weather.

What does a convector cost?

Mobile convectors are available for less than 20€. The price of floor-standing convectors starts at around 100€. Of course, both variants are also available in more expensive price categories with prices up to 850€.

What alternatives are there to convectors?

Alternative heating options besides convectors are radiators, fan heaters or infrared heaters.

Convectors are a more variable and, depending on the type, also a more mobile alternative to radiators (image source: / ri).

While the use of radiators makes sense above all when rooms are to be heated constantly, the other three alternatives, like the convector, make sense above all when it is a matter of targeted and additional heating. The following table should give you a quick overview of the advantages and disadvantages of the different heating options.

Alternative Advantages Disadvantages
Fan heater Generates heat quickly, Mobile, Can be used in many ways Only suitable for small rooms, Loud fan, Fire hazard with insufficient air supply
Radiator Noiseless, Fire-safe Takes longer to heat up,
Infrared Provides targeted heat, Saves electricity, Keeps humidity constant Must be permanently installed

Whether you prefer a convector, a fan heater, a radiator or an infrared heater depends, of course, on your personal needs.

Decision: What types of convectors are there and which is the right one for you?

When you decide to buy a convector, there are three alternatives to choose from:

  • mobile convector or free-standing convector
  • Convector with wall mounting
  • flat convector or underfloor convector

The three product types actually only differ from each other in their construction. All three product types have advantages and disadvantages, and it depends on the intended use which convector suits you better. In the following paragraphs we would like to help you decide.

What distinguishes a mobile convector or free-standing convector and what are its advantages and disadvantages?

The mobile convector, also called a free-standing convector, is characterised by its simple start-up. All you need to do is connect it to the power supply and the convector is ready for use in any room.

Often, these convectors are also equipped with castors, which further increase the mobility of the convector. Although such convectors hardly differ from fan heaters, they usually have a significantly higher output.

Since the convector draws in cold air and emits warm air and heats the room with the help of this air circulation, care should always be taken that this air circulation is not interrupted, i.e. the unit should be placed as freely as possible in the room.

  • Easy start-up
  • Flexibility
  • Mobile with castors
  • Higher output than fan heaters
  • Takes up space in the room
  • Requires power connection
  • Exposed cables

What are the features of a wall-mounted convector and what are its advantages and disadvantages?

Wall-mounted convectors are permanently mounted directly on the wall. This way, it loses the advantage of flexibility, but is more space-saving. Convectors of this type are particularly popular in bathrooms as supplementary heating or in rooms that are rarely heated, such as guest rooms, etc.

To make the air circulation as efficient as possible, it is advisable to install the convector near large windows, where it can quickly intercept and heat the cold air.

  • One-time installation
  • Space-saving
  • No or hardly any free cables
  • Ideal as additional heating
  • Flexibility
  • Installation by a specialist necessary

What distinguishes a flat convector or underfloor convector and what are its advantages and disadvantages?

Flat convectors or underfloor convectors are either recessed into the floor or are also used for large window fronts such as shop windows. There, they are installed under the window sill, for example. In this way, they can take over the function of underfloor heating at certain points.

In addition to the high output, the space-saving installation is one of the major advantages. However, this installation is very complex and should only be carried out by a specialist. In addition, this type of convector is not mobile either, which means that several such convectors may be needed in a residential unit.

  • One-time installation
  • Space-saving
  • No or hardly any free cables
  • Ideal as additional heating
  • High performance
  • Flexibility
  • Installation by specialist necessary

Purchase criteria: You can use these factors to compare and evaluate convectors

In the following, we will show you which aspects you should pay attention to when buying your convector. The criteria to consider when buying include:

  • Size and weight
  • Power
  • Design
  • Additional equipment

In the following paragraphs, we will explain to you what is important in each of the criteria.

Size and weight

The required size of the convector depends largely on the room in which it is to be used. Not only the size of the room, but also the air circulation in the room is decisive. For wall-mounted convectors and underfloor convectors, it is highly advisable to consult an expert to achieve the best result.

For mobile free-standing convectors, the size of the room and the weight are decisive factors. Both criteria vary greatly depending on the unit. In order to be able to use the advantage of mobility effectively, the unit should not be too heavy and should definitely be equipped with castors. In addition, it is important to ensure that mobile convectors have enough space in the room and that nothing restricts the air circulation they generate in the room.


Convectors are very powerful. Especially with mobile convectors, the power should be considered as a purchase criterion, as they are quite expensive when operated at high power. Built-in fans may have a performance-enhancing effect. With regard to the performance of mobile convectors, it is also advisable to consult an expert, which is why it is a good idea to buy a convector from a specialist shop.


Although convectors are available in many different designs, they usually resemble a classic radiator.

Additional equipment

As already mentioned, fans are a popular additional equipment for convectors, as they significantly increase the effectiveness of the convectors. As they can be very noisy, there are also models where the fan can be switched off separately from the convector. In addition, the most popular additional features include overheating protection, frost protection and a thermostat.

Convectors give the home a cosy warmth not only in winter, but also on cold summer days (Image source: / JillWellington).

While the overheating protection switches the unit off when the temperature is too high, the forest protection switches the unit on when the room temperature reaches minus degrees. The thermostat, on the other hand, contributes to a more efficient use of the convector.

Facts worth knowing about convectors

What is the output of a convector?

The power to be provided by the convector depends on the size of the room. For example, a room measuring around 25 square metres requires a heater with a power of between 2,000 and 2,500 watts. Depending on the wattage, the electricity consumption and thus also the electricity costs. But these costs are the only ones incurred by a convector apart from the purchase.

How can a convector be cleaned?

During the year, a lot of dust and dirt builds up in the convector, especially between the slats. There are different ways to clean a convector, but each approach requires creativity and patience. For example, you can either use specially designed radiator brushes.

These are available in specialist shops or at fairgrounds and enable thorough cleaning. Cleaning with compressed air is somewhat quicker. However, caution is advised. And here, too, great patience is needed, as too much pressure can damage the convector and fling the dust through the air unnecessarily.

What can I do if the convector is defective?

It depends on the type of convector. With underfloor convectors and wall convectors, the advice of a specialist is needed and definitely pays off. With the smaller, mobile convectors, the cause of the defect is usually overheating.

Because they are so inexpensive to buy, repairing them is usually no longer worthwhile, so it makes more sense to buy a new one.

Photo source: / Andrei Sitnikov

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