Kermi x-net C21 wall heating plaster system

x-net C21 wall heating plaster system Get more flexibility.

Optimal panel heating / cooling for plastered wall surfaces. When it is a matter of keeping system temperatures low and generating optimal homeliness in your living space or in rooms used in a comparable manner, panel heating is absolutely the right choice. Depending on the situation, the wall heating provides a problem-free alternative or is an ideal supplement to underfloor heating. In the case of cladding with increased heat transmission resistance, e.g. a wooden board flooring, or if existing floor coverings are to be retained during refurbishment, or if for example, the underfloor heating power is not enough.

The x-net C21 wall heating plaster system is the optimal panel heating / cooling solution for rooms with plastered walls. The normal types of plaster are: gypsum, lime, lime-gypsum, gypsum-cement or cement-based plaster as well as clay plaster.

Kermi x-net C21 wall heating plaster system

System benefits

  • Radiant heat
  • Low flow temperatures
  • Quick reactions due to minimal pipe covering
  • Can be easily combined with floor heating
  • Heating and cooling

Kermi-Plus benefits

  • Per heating circuit wall areas of up to 10 m² can be occupied due to the pipe dimension 14 x 2 mm
  • Reliable flow ventilation due to the pipe dimension 14 x 2 mm
  • Single connection or connection in the Tichelmann system on the heating circuit manifold
  • Simple to process and 100 % oxygen diffusion-proof mkv composite pipe
  • Pipe layout of wall heating that has been installed can be made visible with x-net thermofoil
  • Universally adaptable to wall areas in any shape
  • Only approx. 25 mm structural thickness of the unfinished solid wall up to the plaster surface (depending on how flat the unfinished solid wall is and on the plaster used)
  • Suitable for all usual types of plaster


x-net C21 wall heating plaster system

Kermi x-net C21: rail ends with plug connectors
Rail ends with plug connectors allow straight connection of the one-metre pieces at the required length, without tools.
Kermi x-net C21: Wandheizung Putzsystem Anbringung mit Schrauben oder Nägeln
Wall-mounting is done with screws or wall nails. The self-adhesive strip on the back makes installation easier by fixing the rail in place.
Kermi x-net C21: Verbindungsstege aus widerstandsfähigem Kunststoff
Free positioning for optimal hold, for example in a brick joint. Connection bridges made of impact-proof plastic prevent splitting when wall nails are knocked in.
Kermi x-net C21: rail width omega-shaped pipe clips with 5 cm grid
Rail-width omega-shaped pipe clips in a 5 cm grid ensure easy installation and secure pipe retention.
Kermi x-net C21: mkv composite pipe - flexible bypassing of wall installations such as sockets
The mkv composite pipe without restoring forces can be laid flexibly around wall fittings, such as electrical sockets.
Kermi x-net C21: horizontal layout of pipes allows plaster to be applied more easily
The horizontal pipe layout makes plastering easier. The low structure height allows plaster thicknesses starting from 25 mm. This makes special sizes, for example around door frames and window sills, unnecessary.

x-net mkv composite pipe

Kermi x-net C21: pipe inscription indicates remaining length and pipe length already used
Printed marks on the pipe indicate the remaining length and pipe length already used, allowing optimal utilisation of pipe coils.
Kermi x-net C21: assembly-friendly, flexible mkv composite pipe
Installation-friendly mkv composite pipe with high flexibility and pipe elbows that have no spring-back forces.
Kermi x-net pipe and pipe connection
Extensive range of press-on and screw connectors.

x-net unwinding unit

Kermi x-net C21: rugged individual components of the x-net unrolling unit
Solid components, manufactured with high precision and designed for longevity – inherent in every Kermi-designed product.
Kermi x-net C21: straightforward transportation with the x-net unrolling unit
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 C21: remaining pipe protected in carton
Remaining pipe stays in the packaging, protected against dirt and damage and ready to be transported at any time.

x-net wall heating connection

Kermi x-net C21: Tichelmann connection of x-net wall heating
An extensive range of fittings allows single connections or Tichelmann connections to be made with ease.
Kermi x-net C21: pipe elbow installed on the wall
Pipe bends installed "in loops" on the panel do not make any contact with the screed plate. In the case of thin-layered floor structures, this prevents sound transmission and mechanical damage to the pipe.
Kermi x-net C21: connection of x-net wall heating to underfloor heating at distributor
x-net panel heating can be optimally combined with floor heating and connected to the same manifold.

x-net controls

Heating comfort at the press of a button.

Clever control for panel heating and cooling. This means the desired heating comfort can be set individually for every room. Clever control also means: Save cleverly. x-net control is available in two product lines, to precisely suit the particular requirements.

x-net C21 product film

 For new and old buildings. Comfortable warmth with quick reaction from the wall.

  • Per heating circuit wall areas up to 10 m² available based on pipe dimension 14 x 2.0
  • Reliable flow venting based on pipe dimension 14 x 2.0
  • Single connection or connection in the Tichelmann system on the heating circuit manifold
  • Simple to process and 100 % oxygen diffusion-proof mkv composite pipe
  • Universally adaptable to wall areas in any shape
  • Only approx. 25 mm structure thickness from the unfinished solid wall to the plaster surface

Kermi: Clear advantages. Complete service.

Comprehensive Kermi system x-optimised

  • Energy savings up to 34 %
  • Optimally matched components
  • Everything from a single source, from planning to commissioning

This means "Kermi system x-optimised"

12 good reasons for Kermi system x-optimised

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 download technical data sets

Support with order process and planning

  • Support with order preparation
  • Support with a wide range of services during system planning
  • Dimensioning data set for liNear software
  • Comprehensive software for dimensioning rooms
  • Comprehensive information material
  • Extensive technical Internet portal
Kermi x-net C11: with outstanding customer service

Complete customer service

  • Nationwide service team as well as field service teams for fast on-site assistance
  • Competent in-house service team for fast telephone assistance
  • Professional, unbureaucratic processing of complaints
  • Detailed initial training on-site
  • Detailed planning and design consultation
Kermi system knowledge down to the last detail

System knowledge in great detail

  • Carefully engineered system technology developed in-house for easier, fast, safe work
  • Many Kermi innovations
  • Kermi special solutions for practical application by tradespeople

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