Calculate Underfloor Heating Staple System

Calculate material requirements for the tacker underfloor heating system – EPS insulation boards, PE-Xa heating pipes, tacker clips, and edge insulation strips for wet screed. The tacker system is the most affordable hot water underfloor heating system, starting at €8/m² and from 65 mm total height – a standard solution for new builds with cement screed. Enter your area and immediately receive the insulation board quantity, pipe length, number of heating circuits, and complete set price.

What the configurator calculates – Tacker System Underfloor Heating

Based on your room area and chosen insulation thickness, the configurator determines:

  • EPS insulation board (WLG 035, 040 or 045): Room area + 5% waste
  • PE-Xa EVOH heating pipe: approx. 6.7 m/m² with 15 cm pipe spacing (new build standard)
  • Tacker clips: approx. 8–10 pcs. per m²
  • Heating circuits & manifolds: max. 100 m per circuit – for 120 m² typically 8 heating circuits
  • Edge insulation strips: Room perimeter in linear meters

Example calculation for 120 m² new build: 126 m² EPS WLG 040 · 800 m heating pipe (8 heating circuits) · ~1,000 tacker clips · 70 linear meters edge insulation strips – Complete set starting from approx. €960.

Häufige Fragen

How much material do I need for 120 m² of staple system underfloor heating in a new build?
For 120 m² of new construction with a 15 cm pipe spacing: approx. 126 m² EPS insulation boards, approx. 800 m PE-Xa heating pipes (8 heating circuits of max. 100 m each), approx. 1,000 staples, and approx. 70 linear meters of edge insulation strips. Complete set price starting from approx. €960 – the configurator calculates all quantities automatically.
What is the price of the Tacker System Underfloor Heating Complete Set for 150 m²?
The complete tacker system set (EPS WLG 040, heating pipe, tacker clips, edge insulation strips) costs from approx. €8/m² – so for 150 m², it's from approx. €1,200. With a set discount from €800/€1,500 order value. Not included: cement screed (approx. 80 kg/m² with 45 mm cover) and installation work.
How do I calculate the number of heating circuits for my underfloor heating tacker system?
With the tacker system, a heating circuit may have a maximum of 100 m of pipe (∅ 16 mm). Formula: Total pipe length ÷ 100 = Minimum number of heating circuits (round up). Example: 150 m² × 6.7 m/m² = 1,005 m of pipe → 11 heating circuits → manifold with 12 outlets. The configurator calculates this automatically.
EPS or mineral wool insulation board for the staple system – which one should I choose?
EPS (Styrofoam) WLG 040 is sufficient for standard new builds according to GEG – the most affordable option. Mineral wool WLG 035 offers better thermal insulation and soundproofing, and is mandatory for some KfW and BEG funding schemes. For new builds without funding requirements: EPS WLG 040. The configurator will ask for your requirements and select the appropriate variant.
Calculate staple system: Which screed and how much do I need?
For the tacker system, cement screed CT (min. 45 mm above pipe, approx. 80 kg/m²) or CAF flowing screed CA (min. 35 mm above pipe, better for heat pumps) are recommended. Total buildup: EPS board (20–60 mm) + pipe + screed = 65–120 mm. The screed requirement is not calculated in the configurator, but separately by your screed layer.