Scarifying for Underfloor Heating – Fast and Effective Installation!

Scarifying for Underfloor Heating – What You Should Know?

Scarifying for underfloor heating is an increasingly popular method of installing heating systems in homes and commercial buildings. It allows for thermal comfort without breaking the floor or raising its level. In this article, we take a look at the scarifying process, its advantages, and recommend devices that are ideal for this type of work.

What Does the Scarifying Process for Underfloor Heating Look Like?

The entire process consists of several steps:

Preparation – assessing the type of screed, insulation, and taking measurements.
Scarifying – cutting grooves for heating pipes using a concrete scarifier.
Pipe installation – precisely placing the pipes and connecting them to the heat source.
Testing – checking the system’s functionality and making adjustments if necessary.
Finishing – securing the installation and completing the floor layer.

Scarifying is a quick and effective solution – it allows for fast floor preparation for underfloor heating installation with minimal interference in the existing structure.

How to Choose the Right Concrete Scarifier?

Choosing the right scarifier for underfloor heating depends on the type of substrate, the scope of work, and the required precision. Here are some key parameters to consider:

Motor power – higher power enables more effective scarifying of harder surfaces.
Scarifying depth and width – adjusted to the diameter of heating pipes.
Power supply – single-phase (230 V) and three-phase (400 V) models for different working conditions.
Dust extraction system – ability to connect a vacuum cleaner for clean and safe operation.

Below are proven scarifier models that perform excellently in underfloor heating installations.

HE-120 Manual 230 V Scarifier for Underfloor Heating Grooves

HE-120 Manual 230 V is a stable and efficient concrete scarifier, ideal for cutting grooves for heating pipes. Equipped with a 2.2 kW (230 V) motor, it allows for a scarifying depth of up to 25 mm. With a working efficiency of 100 m² in 8 hours, the machine is highly effective.

Motor power: 2.2 kW
Power supply: 230 V
Maximum scarifying depth: 25 mm
Groove width: 16–17.3 mm
Weight: 74 kg

HE-120 Manual 400 V Scarifier for Underfloor Heating Grooves

HE-120 Manual 400 V is the 400 V version of this scarifier, designed for harder screeds. It features a powerful 4 kW motor, making it ideal for demanding conditions.

Motor power: 4 kW
Power supply: 400 V
Maximum scarifying depth: 25 mm
Minimum distance from wall: 10 cm
Weight: 74 kg

HE-120 AUTOMATIC 230 V Scarifier for Underfloor Heating Grooves

The automatic model HE-120 230 V makes work easier by eliminating the need for manual guidance. Thanks to its integrated control system, it ensures uniform and precise scarifying. The unit weighs 95 kg.

Motor power: 2.2 kW
Power supply: 230 V
Maximum scarifying depth: 25 mm
Minimum distance from wall: 12 cm
Weight: 95 kg

Summary – Why Invest in Scarifying for Underfloor Heating?

Energy savings – underfloor heating delivers the same thermal comfort as radiators at a room air temperature 1–2°C lower, which according to the Wavin white paper (prepared with LCP Delta) reduces heat demand by around 10–20%. The low flow temperature (approx. 35°C) also raises the efficiency of heat pumps and condensing boilers.
Thermal comfort – even heat distribution across the entire room.
Aesthetics – no visible radiators allow for flexible interior design.

If you have questions about choosing the right scarifier, contact our specialists – we’ll be happy to help you find the best solution.