Underfloor Heating Guide

Assembly Instructions – 8 Steps

Installed according to DIN EN 1264-4: staples, pressure test 6 bar, heating protocol.

Calculate assembly height & insulation thickness

Formula: EPS + Pipe + Screed. GEG R-values, minimum build-up 71 mm.

EPS vs. Mineral Wool Staple Plate

WLG 035/040/045 in comparison: λ-value, compressive strength, price.

Costs 2026: from €7.90/m²

EPS WLG 040 from €7.90/m² without screed. Calculation 20–100 m².

Assembly instructions – 8 steps

Glue the fleece, press in the pipe – no stapling, no tools.

Slim vs. Silent - Which version?

Slim (2 mm) or Silent (5 mm, 28 dB DIN 4109): the decision-making aid.

Planning hook-and-loop system in new construction

Installation Heights Slim/Silent, WP-Compatibility, Planning Basics.

2026 Costs: Slim & Silent Prices

Slim from €12.50/m², Silent from €16.49/m². Calculation for 20–100 m².

Assembly Instructions – 5 Steps

Adhere the dimpled sheet, clip in the pipe, pour the screed. Structure from 18 mm.

Retrofitting old buildings without chiseling

18–22 mm, wet construction vs. dry construction, 20–30% heating cost savings.

Calculate Pipe Quantity & Heating Circuits

Laying distance, heating load, number of heating circuits according to DIN EN 1264.

Costs 2026: from €11/m²

Foil from €11/m², screed €49/m². Calculation with KfW funding information.

Assembly Instructions – 10 Steps

DIN EN 1264-4: System panels, heat spreader plates, pressure test 6 bar.

Retrofitting old buildings without wet screed

0–24h instead of 21 days drying. 25–37 kg/m² instead of 100 kg/m².

Underfloor heating on wooden joist ceilings

Wood fiber: 56 dB impact sound, breathable, ecological.

Costs 2026: EPS vs. Wood Fiber

EPS from €31/sqm, wood fiber from €37/sqm. Calculation for 20–100 sqm.

Montageanleitung – Noppenplatte verlegen

Noppenplatte verlegen, Rohr eindrücken, Fließestrich vergießen. Aufbau ab 18 mm ohne Clips.

Aufbauhöhe & Systemdicke

N-PS 11 mm + Rohr + Fließestrich = ab 18 mm gesamt. GEG R-Wert und Mindestaufbau.

Verlegeanleitung: Rohrabstand & Heizkreise

Verlegeabstand 10–20 cm, Rohrlänge berechnen, Heizkreisanzahl nach DIN EN 1264.

Kosten 2026: Noppensystem ab 11 €/m²

Noppenplatte + Rohr + Randdämmstreifen ab 11 €/m². Kalkulation 50–200 m² mit Estrichkosten.

Choosing a Thermostat: ZigBee, WiFi, or Wired

ZigBee vs. WiFi vs. Wired – System Comparison for Underfloor Heating according to GEG § 61.

Upgrade control: Individual room control starting from €34

Retrofit actuator + thermostat without chiseling. Simply fulfill GEG § 61 obligation.

Smart Home Integration: ZigBee 3.0 & Home Assistant

Integrate FBH Control into Home Assistant, Apple Home & Google. EGATE-PRO Gateway.

Control with heat pump: TPI & night setback

TPI algorithm, nighttime setback, and thermostat for heat pump optimized operation.

PE-RT vs. PE-Xa vs. Multilayer Composite Pipe Comparison

3-way comparison: price, flexibility, diffusion tightness, and heat pump suitability.

Laying underfloor heating pipes: Stapler & clip rail

9 Steps: Bending Radius, Expansion Joints, Pressure Testing & DIN 18560 Heating Protocol.

Calculate Pipe Length: Formula & Table 2026

Formula L = A÷e + 2×lead, laying distance table 10–25 cm, max. circuit length.

Heating Pipe Costs 2026: PE-RT from €0.48/m

PE-RT from €0.48/m, PE-Xa €0.66/m, multi-layer composite pipe €0.70/m. Total cost for 100 m².

Buying a manifold for underfloor heating: Stainless steel vs. brass

Stainless Steel vs. Brass, 2–12 circuits, with/without flow meters. PZH certified, 5-year warranty.

Install a manifold: Step-by-step

Wall mounting, pipe connection, bleeding, pressure testing & commissioning. DIY in approx. 3 hours.

Hydraulic Balancing UFH: Set Flow Rates

Set flowmeter, formula Q = P÷(ΔT×1.163), calibration table. GEG § 60 mandatory.

Heating Circuit Manifold Costs 2026: 4 to 12 Circuits

Stainless steel from €50, complete set €90–€180. Price overview 4, 6 and 12 circuits. DIY vs. professional.