Wall heating against mold

Mold is a tiresome problem in many existing buildings. The wall heating, which has become increasingly popular in recent years, offers a number of aspects that speak in favor of avoiding mold. So whether a wall heating against mold is suitable, you can learn afterwards.

The wall is already being heated when the mold is removed immediately

Even looking at the procedure for the immediate removal of mold shows that the wall heating has potential against mold spores. Because often the wall is dried flat with the help of an infrared heater. In order to understand if and why a wall heating against mold could help and what is important to note, mold growth must be understandable. In addition, the functional principle of a wall heater.

First, it should be noted that there are two different technical heating techniques:

  • the convection heating
  • the heating with radiant heat

functional principle convection heating and resulting mold growth

A classic hot water central heating is a convection heating. The air in the room is heated. The warm room air only rises. Inevitably, there is a tendency towards the coldest components in the room. As a rule, these are likely to be the areas of the outer wall.

Here the air cools down. However, cold air can absorb less moisture than warm air. In other words, cooling air must give off moisture in the area of ​​cooling. This area is called the relative dew point. Thus, the condensation reaches parts of the outer wall or in very cool areas behind furniture. Mold now forms here when the moisture load is regular.

Functional principle of wall heating and consequent mold avoidance

Wall heating works on the principle of heat radiation. It is thus primarily the illuminated body and less heated the room air. This creates a feeling of comfortable warmth. 18 degrees warm room air is perceived as 21 degrees. This is one of the reasons why the wall heating is often in demand for the old building.

With the old building, however, the functioning of the wall heating can be explained very well. In particular, why an old building without sufficient insulation for the wall heating is rather unsuitable and why the wall heating should be installed in the outer wall.

The functional principle of wall heating

Primarily, illuminated bodies and objects are heated. However, some convective heat is just as inevitable. The warm air rises like a convection heater. It is sucked down from the coldest area, usually a wall. Here it cools down and falls even faster down. Then it is sucked in again by the wall with the wall heating; the cycle starts again.

If the wall heating were now on an inner wall and the outer wall an uninsulated old building exterior wall, the cooling would be so extreme that the feeling of cold feet prevails constantly. Therefore, the wall heating should always be mounted on the outer wall, which is also insulated to the outside accordingly. The cooling on interior walls is less strong, as these walls are only slightly cooler. This also leads to rather small temperature fluctuations.

This also results in less humidity. Correctly mounted, namely on the outer wall, this still mostly cold wall is also eliminated. Now there is another effect, since it is primarily bodies and objects that are heated, not the air in the room.

Lower temperature differences and less humid air

It feels warmer in a really "cooler" room. Thus, the humidity from home is lower. This can also form less condensate. So on the one hand, the temperature fluctuations are lower, since the conventionally coldest wall is equipped with a wall heating. Due to the low cooling, significantly less condensation occurs, with the humidity also being lower than in a room that is heated by convection heat.

Tips & TricksThe wall heating is therefore a real alternative to prevent mold when properly and optimally installed. Especially in damp rooms such as the bathroom, the wall heating can then make even better use of its advantages.
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