SANHA wall heating module demonstrates specific advantages
Wall heating systems are among the most efficient types of heat transfer. As surface heating, they are extremely well suited for combination with heat pumps, for example. In contrast to comparable systems, SANHA wall heating modules offer the advantage that they can provide heat both in the low temperature range and up to 60 °C. In addition, they are much easier to install. They are also much easier to install.
An old building in the south of Essen is currently being fitted with wall heating modules. This is an example of how our systems can demonstrate their advantages and support energy-efficient refurbishment at the highest level in a technology-neutral way.
The building, built in 1977, is currently undergoing a comprehensive energy refurbishment. This includes efficient façade insulation as well as a modern heating system based on natural gas condensing heating. A total of two floors with five rooms (one downstairs, four upstairs) are to be heated. The calculated heating load of the upper floor (85 m²) is around 2.5 kW (assuming 30 K to the outside temperature), which is optimally provided by wall heating modules, while the first floor is supplied with heat via underfloor heating.
The client opted for SANHA® wall heating modules primarily because of their high flexibility. The maximum heat output is up to 210 W/m², which is higher than comparable products. This means that wall heating modules can be operated very efficiently in the low temperature range during the transitional period and still use the high possible flow temperatures of the natural gas heating system on particularly cold days.
Another reason why the client chose SANHA® wall heating modules was the ease of installation: using a mounting rail and dowels, they are much easier to install than underfloor heating, for example; there is no need for labor-intensive ripping up of the floor and subsequent re-installation, drying times for the screed, etc. – a clear advantage.
Added to this was the fact that neither the wall heating modules nor the underfloor heating generate any convection or dust: “As an allergy sufferer, this aspect was very important to me,” says the client. The upper floor, which is particularly exposed to the sun on hot days, can also be cooled by the wall heating modules if necessary. This is particularly true for a studio with high ceilings.
Dew point undercutting and mold prevention
Wall heating also makes sense when it comes to preventing mold on the walls. Mold develops when water vapor from the air condenses on colder objects, i.e. when the temperature falls below the dew point (or dew point temperature). The type of ventilation also plays a role: it is better to ventilate several times a day than to keep the window tilted. Conventional convection heating systems cannot prevent moisture loss or condensation in every situation, as the warm air collects on the ceiling and sinks downwards after cooling – and can provide an ideal breeding ground for mold in the cooler areas of the wall.
Wall heating works on the principle of the sun
Wall heating, on the other hand, does not primarily heat the air, but warms objects and people through heat radiation – similar to the sun. This is not only perceived as very pleasant, but also ensures lower humidity. In addition, this type of panel heating does not cause any draughts or swirling up of dust. Conventional radiators, on the other hand, lead to the air movement described above, which is caused by layers of different temperatures. For ideal protection against mold growth, operation at a minimum temperature of 16 °C is advisable (climatic conditions in Central Europe; the dew point can shift under very cold or very dry climatic conditions).
Room heating and cooling
With the wall heating module, SANHA® provides a system for room heating and cooling (room heating) that is characterized in particular by exceptional living comfort, very simple installation, significantly better energy efficiency due to a lower average room temperature and particularly health-friendly properties. This system is ideal for both new buildings and the renovation of existing buildings.
Wall heating modules are supplied ready to use with a surface that can be painted or wallpapered directly. The SANHA® wall heating module is a prefabricated element that is installed in a similar way to a panel radiator. It consists of a galvanized sheet steel frame in which a multi-layer composite pipe (PE-RT/AL/PE-RT) is inserted and enclosed with a special heating mortar. The element is encased in cardboard paper. The maximum heat output is up to 210 W/m², which is higher than comparable products.
Notes on storage and transportation
The SANHA® wall heating modules must be treated similarly to drywall panels on the construction site, i.e. protected from moisture in particular. The modules must not be placed on the connecting pipes. The modules are delivered on pallets. When transporting individual modules, bending must be avoided. They must therefore be transported on edge. There is a banderole with corresponding instructions on each module. This label must be removed during assembly.