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The damage of the heating cable insulation due to the steel reinforcement led to a short circuit and complete interruption of the cable.
We’ve prepared a new chapter "The most common causes of failures" for you, where we will gradually add illustrative examples of the mistakes, that can occur during the installation of our products. You can find the chapter in the Support section.
The cut in the heating cable was repaired with a breakable terminal block and insulated with black electrical insulating PVC tape. As the several layers of adhesive tape show, the person in question certainly didn´t want to underestimate the repair….
The unprofessionally performed repair of heating cables results, unnecessarily, in significantly higher damage.
This is one case when an investor asked for our opinion before the floor was covered. The heating cables are insufficiently attached, the clips are too far apart, and the cable is “floating” on the floor. If the screed had been poured, the cables may have come into contact with one another or even crossed, which would have led to the overheating and interruption of the cable. In the right half of the photo, there are loose cables in the immediate vicinity of the floor probe gooseneck, which would have...
The most common mistakes when laying heating cables and mats
Virtually the whole connector has been pulled into the perimeter wall, where there is no reliable heat dissipation. The second mistake is the bending of the heating cable immediately after the connector – heating and the different expansion of materials in the bend create cyclic mechanical stress on the joint, which can lead to its interruption
A very common mistake is the damaging or incorrectly placement of heating cable connectors.
Selected Fenix products were tested by the Electrotechnical Testing Institute in Prague-Trója. The aim was to measure the electromagnetic fields of the products according to the valid technical standards. The results show that all of the measured values are well below acceptable limits.
Heating mats for direct heating systems
Heating mats are placed directly under floor tiling, in a thin layer of flexible sealant. They are easy to install and are highly economical to operate in connection with suitable temperature regulation. They are suitable for use as main heating systems as well as systems providing floor heating for added comfort.
Heating mats for semi-storage heating
Heating mats in a layer of thermally conductive material (anhydrite, concrete…). They are typically easy and fast to install, and they are particularly suitable for use as main heating systems.
Ice and snow melting
We offer special mats for outdoor applications in which the cable isn’t fixed to material, but is connected by fastening strips. After placement in sand the cable is thus better surrounded by backfill.
AL MAT heating mats
They are intended to be used under laminate and wooden floating floors installed in what are classified as humid areas – e.g. in bathrooms. They are a variant of ECOFILM heating foils for applications where ECOFILM cannot be used.
Heated rubber S-MAT
Heated rubber mat for the protection of entrance clean-off zones in shops, shopping centres and other areas with foot traffic against snow and ice.

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