Kermi x-net C11 Noppensystem

x-net C11 knob system The classic among underfloor heating systems - rational in every direction.

Underfloor heating for wet screed. Pleasant climate for every season and highest energy efficiency. x-net C11 is the optimised floor heating system by virtue of innovative developments and carefully engineered detailed solutions for heating and cooling based on proven knob plate technology. Perfectly matched system components and a reasonable assembly system for clean and safe installation in residential and commercial buildings.

Kermi x-net C11 Noppensystem

System benefits

  • Heating and cooling
  • Optimal for one-man pipe laying
  • Best-suited for flowing screeds
  • Perfect protection for the pipe during the shell construction phase due to the knob structure
  • Layout spacing for system reasons which complies with standards

Kermi-Plus benefits

  • Two pipe dimensions can be processed:
    1. x-net 5-layer pipe 14 x 2
    2. x-net 5-layer pipe 16 x 2
  • Diagonal installation of the pipe in the panel without additional pipe fasteners
  • High impact resistance
  • High pipe retention force
  • A suitable system panel for every application: 1. Impact sound insulation for floors separating apartments 2. Rigid foam insulation for high payloads
  • Large-sized panels for fast insulation installation
  • Heating technology tested according to DIN EN 1264 and DIN Certco-certified


Knob palette

Kermi x-net C11: Geradliniger Rohrverlauf parallel zu den Plattenrändern oder diagonal
Pipes laid in straight lines parallel to the plate edges or diagonal without additional pipe fasteners.
Kermi x-net C11: Plattenverbund durch seitlich überstehende Tiefziehfolie
Simple plate joints with thermoforming film overlapping at the side to ensure screed-separating protective cover as defined in DIN 18560.
Kermi x-net C11: Verknüpfung von stumpfstoßenden Platten
Butt-joint plates connected by x-net C11 connecting strip as accessory, e.g. for re-using leftover pieces.
Kermi x-net C11: Schnelle Verlegung durch großformatige Platten
Large plates for fast installation, ideal for pipe laying by a single person.
Kermi x-net C11: Rohr während der Rohbauphase geschützt in Noppenstruktur
Pipe remains well-protected by the knob structure during the entire shell construction phase.
Kermi x-net C11: Einsatz versch. Rohrdimensionen, 14 x 2 links, 16 x 2 rechts
The special knob undercut on the sturdy thermoforming film allows the use of different pipe dimensions (picture left: 14 x 2; picture right: 16 x 2)  and ensures optimal retention in the knob plate.

x-net 5-layer-PE-Xc tube

Kermi x-net C11: Rohraufdruck mit Angabe von Restlänge und bereits verbrauchter Rohrlänge
Printed marks on the pipe indicate the remaining pipe length and length already used, allowing optimal utilisation of pipe coils.
High flexibility allows tight bending radii and reduces the restoring forces in pipe elbows.
Kermi x-net Rohr und Rohrverbinder
Pipes and pipe connectors as defined in DIN 4726 and DIN EN ISO 15875 are tested and monitored regularly by an accredited independent testing institute.

x-net detail solutions - movement joint profile 10/100

Kermi x-net C11: Abdichtung der Bewegungsfuge am Noppengrund durch das x-net Abdichtungsprofil Noppe
The expansion joint at the knob base is sealed by the x-net knob sealing profile. This allows freedom of movement over the entire screed cross-section.
Kermi x-net C11: Ausschnitt der Rohrdurchgänge mit x-net Ausklinkzange
Pipe passages cut out with x-net notching pliers. Cut-out positioning is simplified by printed grid markings at the grid dimensions of the x-net C11 knob plate.
Kermi x-net C11: Breiter Klebefuß und seitliche Kunststoffverstärkung
Wider adhesive foot and lateral plastic reinforcement for vertical stability and straight-line positioning. The x-net adhesive pipe protection strip is used for protecting crossed pipes.

Detailed solutions - x-net C11 combination set

Kermi x-net C11: Abmessung der planebenen Dämmplatte
Dimensions of the flat insulation panel are adapted to the knob plate grids. For easy cutting between the knobs.
Kermi x-net C11: Estrichdichter Übergang dank x-net C11 Überlappstreifen
The xnet C11 overlap strip ensures a screed-separating transition.
Kermi x-net C11: Kombi-Set zum einfachen Herstellen von Türdurchgängen
The x-net C11 combi set for easy creation of doorways allows different knob alignment in each room.

Detail solutions - x-net edge insulating strips H 160 mm

Kermi x-net C11: Klebestreifen zur Wandfixierung des x-net Randdämmstreifens H 160 mm
Adhesive strip for wall-fixing of x-net edge insulation strip H 160 mm. Height adjusted to the floor structure so that there is no adhesive residue visible in the wall area afterwards.
Kermi x-net C11: Dichte Fixierung auf der Noppenplatte
Sealed fixing of the protective film using the x-net sealing profile on the knob plate.
Kermi x-net C11: Mehrfach-Abreiß-Schlitzung
Multiple tear-off slits for fast tool-free cutting of the edge insulation strip without leaving marks on the wall plaster.

x-net unwinding unit

For tension- and twist-free unrolling of the x-net tube pipe system from the packaging.

Kermi x-net C11: eigenentwickelte Abrollvorrichtung
All individual parts are solid, manufactured with high precision, and designed for longevity, i.e. developed and designed by Kermi.
Kermi x-net C11: Werkzeugfrei zusammenbaubar, einfacher Transport der x-net Abrollvorrichtung
Can be assembled and disassembled in a very short time, in a few simple steps without tools. The x-net pipe unwinder can even be carried in a backpack.
Kermi x-net C11: Jederzeit transportbereit
Any remaining pipe stays in the packaging, protected against dirt and damage and ready to be transported at any time.

x-link connection fitting

The combination of a bathroom radiator and underfloor heating is becoming increasingly popular. What was missing was a visually and technically convincing solution for the connection problem.

Using the x-link connection fitting, it is quick and easy to connect the underfloor heating circuit via the bathroom radiator to the existing radiator network.

x-net C11 product film


The classic among underfloor heating systems - rational in every direction

- Two pipe dimensions can be laid
- Diagonal installation of the pipe in the panel without additional pipe fasteners
- High impact resistance
- High pipe retention force
- Rigid foam insulation version and with impact sound insulation

Kermi: Clear advantages. Complete service.

Kermi - Zertifizierte Qualität

Certified quality

  • Kermi is certified according to DIN EN ISO 9001;2008, 14001:2004 and 50001:2011
  • Components comply with current standards and directives
  • Regular monitoring of core components by independent testing institutes
Kermi x-net C11: Mit bestem Kundenservice

Complete support for the customer

  • Competent in-house service team for fast telephone assistance
  • Professional, unbureaucratic processing of complaints
Kermi System-Fortschritt bis ins Detail

System knowledge down to the details

  • Carefully engineered system technology developed in-house for easier, fast, safe work
  • Many Kermi innovations
  • Kermi special solutions for individuals working in the trades

Links for specialist partners


Kermi Unterlagen für Fachpartner

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