ITHERME RETRODEK 18 - Underfloor Heating System

The ITHERME RETRODEK 18 is an ultra-low profile underfloor heating system designed for structural joisted subfloor and concrete floor constructions where minimal height increase is required. The system uses a high-density, pre-routed EPS insulation panel with a factory-bonded aluminium heat diffusion foil to securely house the heating pipework and support efficient heat transfer. Its slim 18 mm build-up allows it to integrate easily into refurbishment and retrofit projects while remaining compatible with a wide range of floor finishes.

Features and benefits:

• Ultra-thin 18 mm panel designed to minimise floor height build-up.
• Pre-routed channels securely encase pipework for stable installation.
• High-density EPS insulation rated at 300 kPa for strength and durability.
• Factory-bonded aluminium heat diffusion foil for even heat distribution.
• Compatible with Itherme VE-FLEX 12 x 2 mm PE-RT/EVOH/PE-RT pipe to DIN 4726 standards.
• Offers design flexibility with 150 mm and 200 mm pipe centre options.
• Suitable for installation over concrete or structural joisted subfloors.
• Accepts all common floor finishes, including direct tiling, with optional overlay if required.