Wall heating is in increasing demand. Especially for the bathroom, there are many homeowners who are interested here. What has to be considered with a wall heating in the bathroom, we have summarized below for you.
Wall heating - modern, but not really new
Although wall heating has gained in popularity only in recent years, it is a heating principle, which already used the ancient Romans. The large tiled stove also uses this principle. Conventional hot water heaters with ordinary radiators work on convection heat.
The wall heating in the bathroom
The air in the room is heated. Especially in the bathroom, therefore, a conventional heating always means very humid indoor air, as air with increasing temperature is known to absorb more water. This humidity then often condenses on the outer wall, as this is the coldest.
Advantages of wall heating compared to other heating systems
In contrast, wall heating works on the principle of radiant heat. That is, not the room air, but the illuminated bodies are heated. The most important advantage: a room tempered to 18 degrees Celsius is perceived by the direct illumination as 21 degrees warm. At the same time, six to seven percent more heating energy would be needed for every additional degree of heating at temperatures above 18 degrees Celsius. The wall heating thus offers numerous advantages:
- less heating costs possible
- more comfortable heat
- less dust formation (dust is not stirred up by heated air as much as convection heating)
- less humidity (just in the bathroom one aspect)
However, the wall heating should preferably be in the outer wall to be assembled. Why, we explain in the linked article in detail.
Integration options for wall heating in the bathroom
The wall heating in the bathroom is popular next to the exterior wall, especially in small bathrooms, also in the shower area and on walls with mirrors (less fogged). However, it is again to be considered that the walls with wall heating on the one hand as possible should not be delivered (radiant heat otherwise does not reach the body to be heated). On the other hand, extreme care should be taken when hammering in nails or drilling holes in order not to damage the wall heater.
Tiled walls and wall heating
Tiles on the wall with wall heating are basically no problem. However, with tile adhesives the strong thermal expansion must be considered. High-quality flex tile adhesive is therefore an important prerequisite. In case of damage to the wall heating, it must also be taken into account that the wall must be opened. So it should be available accordingly replacement tiles. In addition, highly cementitious wall coverings and plasters are rather unsuitable because cement lead to severe cracking. Lime, gypsum and clay plasters are thinly applied well. Die Wall heating is particularly important in the exterior wall
In the case of small bathrooms, the wall surface on the outside wall is often additionally significantly reduced by the window area. In this case, a large-scale design of the wall heating is also very important. But as already mentioned, the wall heating can be extended in the bathroom very well on other walls such as mirror wall and a shower wall and even offers additional benefits.
Tips & Tricks Something more problematic is the wall heating in the old building. In particular, in an old building without insulation wall heating may not be so advantageous. Much heat is then emitted to the outside. But the wall heater should always include the outer wall, if it can be installed in other interior walls.