Electric heating cabel Hornisse 3,6mm (37,8m)

Product detailed description

Electric heating cables embedded in screed layers are a common solution for underfloor heating in residential and commercial buildings. Installers typically work with these cables in new constructions or renovations, where even heat distribution is required. The system is particularly useful in rooms with cold zones, such as near windows or in bathrooms, where additional heat sources are needed. The cable is laid directly onto a 3.6 mm screed base, allowing it to be concealed beneath various floor types, including tiles, panels, or stone. The installation process requires careful planning to ensure the cable is not damaged and that the system operates efficiently over its service life.

These cables are flexible and suitable for both residential and commercial applications. They are often used in living rooms, kitchens, and bathrooms, as well as in offices and service areas. The system is designed to be energy-efficient, with precise temperature control and rapid heat-up times. The cable’s construction includes a fluoropolymer-insulated core and a PVC outer sheath, providing mechanical and environmental protection. The installation must be carried out in accordance with the manufacturer’s guidelines to ensure safety and performance.

Technical parameters

The technical parameters listed in the table are essential for correctly sizing and selecting the cable. The power output of 18 W/m and the total length of 37.8m determine the total wattage and the area that can be heated. The maximum operating temperature of the cable is 45°C, which must be considered when designing the system to avoid overheating. The minimum installation temperature is 5°C, ensuring that the cable is not affected by cold conditions during installation.

Installation and connection

The installation of the heating cable involves laying it directly onto a 3.6 mm screed layer. The cable must be spaced evenly to ensure uniform heat distribution. The maximum bend radius is 50 mm, and the cable must not be bent beyond this to avoid damage. The supply cable is a two-core cable with an earthing braid and has a length of 2.5 m. It must be connected to a 230V power supply with appropriate circuit protection. The installation must be carried out in a clean and dry environment, with the minimum installation temperature of 5°C. Common installation mistakes include incorrect spacing, excessive bending, and failure to secure the cable properly before pouring the screed.

Compatibility and accessories

This heating cable is compatible with standard underfloor heating systems and must be used with a suitable thermostat for temperature control. Additional accessories required for installation include the thermostat, circuit breaker, and any necessary mounting hardware. Related products include other lengths of the same cable, such as the 15m, 22.2m, 44.4m, 61.1m, 67.8m, 83.3m, and 105.6m variants. These can be used to cover different room sizes and heating requirements. The cable must be ordered in the correct length to match the area to be heated, and all electrical connections must be made by a qualified electrician.

Technical background for designers

The operating principle of the heating cable is based on resistive heating, where electrical current passes through the conductors, generating heat. The outer sheath is made of PVC, offering additional protection against mechanical damage and environmental factors. The cable is designed to be embedded in a screed layer, which acts as a thermal mass to distribute the heat evenly. The efficiency of the system depends on the correct spacing of the cable, the thickness of the screed, and the type of floor covering. The maximum operating temperature of 45°C must be maintained to ensure the longevity of the system and to prevent overheating.

Service and operation

Once installed, the heating cable requires minimal maintenance. The system should be checked periodically to ensure that the thermostat is functioning correctly and that there are no signs of overheating or damage. The cable itself is not designed for regular servicing, and any faults should be addressed by a qualified technician. The system should be operated within the specified temperature range to avoid premature wear. The cable is protected against moisture and mechanical damage, which contributes to its long service life. No specific service intervals are required, but any issues with the system should be investigated promptly to prevent further damage.

Frequently asked questions

Can the heating cable be used in a bathroom?
Yes, the cable is suitable for use in bathrooms and other areas where additional heat is required. It is protected against moisture and can be installed in screed layers beneath tiles or other waterproof floor coverings.

What is the maximum operating temperature of the cable?
The cable is designed to operate at a maximum temperature of 45°C. This temperature must be maintained to ensure the system functions correctly and to prevent overheating.

Can the cable be cut to a shorter length?
No, the cable must be used in its full length as specified. Cutting the cable will affect the power output and may cause uneven heating or system failure.

What is the minimum installation temperature?
The minimum temperature for installation is 5°C. The cable must not be installed in conditions below this temperature to avoid damage and ensure proper performance.