Underfloor Heating – The Most Popular Radiant Heat System

Low Profile Underfloor Heating – When It’s About Retrofitting Thermal Comfort Plus Saving Energy Costs

Warm water underfloor heating is widely used and accepted for providing surface heating and in some cases also cooling especially in new buildings. However, unnecessarily high supply temperatures and slow response speeds owing to the thickness of the heating screed are frequent points of criticism with conventional construction methods.

This is where low profile underfloor heating is able to make the most of its advantages. With this technology, the heating pipes are located just under the surface and close to one another. BEKA capillary tube mats and the BEKA single pipe technology are the suitable components to use here.


Heat Distribution Underfloor Heating

Advantages of Low Profile Underfloor Heating

  • Low supply temperatures
  • High energy-efficiency
  • Rapid thermal response
  • Uniform surface temperatures
  • Ideal for retrofitting


Thin-Layer Underfloor Heating with BEKA Capillary Mats

The structural design of thin-layer warm water underfloor heating systems is described in standard technical specifications for surface heating and cooling systems. If the substrate is sufficiently loadbearing, the thin-layer underfloor heating system can even be installed directly on the existing floor. This is particularly advantageous in retrofitting projects with a view to optimising costs and reducing construction time.

The thin capillary tubes in the BEKA capillary tube mats, which have an outer diameter of just 4.5mm, only have to be covered within the structure by a self-levelling compound with a total thickness of 10mm (that is approved by manufacturers of underfloor heating systems). The new surface finish for the floor can then be laid on this layer. The typical BEKA capillary tube mat used here is the P.VS20.

Other Radiant Heating Systems

Icon wall heating / cooling
Radiant Wall Heating

Pleasant radiant heat from the climate wall


Icon ceiling heating and cooling
Cooling Ceiling

Cooling ceiling - thermal comfort all year round

Technical Data and Layer Structure [PDF]: Low Profile Underfloor Heating

Underfloor Heating with BEKA Capillary Tube Mats

Underfloor Heating

Low Profile Underfloor Heating with BEKA Single Pipe Technology

The heating tubes in the BEKA single pipe system for low profile underfloor heating only have an outer diameter of 10mm. They can be installed in knobbed mats or clamp rails. The underfloor heating manufacturer-approved self-levelling compound that is poured over the heating tubes only has to have a minimum thickness of 17mm. Polyethylene-RT 5-layer composite tubing is used, which is diffusion-tight according to DIN 4726 ISO 24033/22391/21003.

This defined quality enables an easy installation of the polyethylene pipes in existing heating systems without being concerned about corrosion effects. It is precisely this material quality that makes underfloor heating with BEKA single pipe technology highly interesting for modernisation and retrofitting projects of all kind.


Up for a DIY solution? Retrofit low profile underfloor heating with heating kits from FLEXIRO

Rapid response to temperature changes, very uniform surface temperatures, high specific heating capacities even with supply temperatures of only 30°C – does it need more reasons to retrofit a low profile underfloor heating?