ITHERME RETRODEK 18 - Underfloor Heating System
Verified by manufacturer 2 days ago
ITHERM E RETRODEK 18 is an ultra-low profile underfloor heating system that delivers efficient heat output with minimal impact on floor height.
Application
The ITHERME RETRODEK 18 system is installed directly onto concrete or structural joisted subfloors, with heating pipework laid into the pre-routed EPS panels and finished with optional plywood, fibre cement, gypsum board, or self-levelling compound before applying the final floor finish where required.
Description
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.
General information
Color | Silver |
Finish | Other |
Material | Aluminium Expanded polystyrene (EPS) |
Shape | Rectangle |
Length | 1200 mm |
Width | 600 mm |
Height | 18 mm |
Uniclass | |
CAWS | T90/478 Underfloor electric heating cables T90/450 Insulation to pipework to control heat loss T9/336 Insulation for heating system pipework |
Specification data - Underfloor low-temperature hot water heating systems
Classification data | |
Heat source | Manufacturer guidanceInsert requirements or omit. |
Pumps | Manufacturer guidanceInsert requirements or omit. |
Pipework | |
Distribution | Itherme VE-FLEX pipes, 12 x 2 mm. Guidance for specification option: PE-RT/EVOH/PE-RT, five layer oxygen diffusion barrier pipe to DIN 4726 (SKZ,KOMO Cert). |
Underfloor | Itherme VE-FLEX pipes, 12 x 2 mm. Guidance for specification option: PE-RT/EVOH/PE-RT, five layer oxygen diffusion barrier pipe to DIN 4726 (SKZ,KOMO Cert). |
Jointing materials | Manufacturer guidanceInsert requirements or omit. |
Insulation | Not required. Required. Guidance for specification option: To requested specifications. Supplied by others, insert requirements. |
Pipe accessories | Manufacturer guidanceInsert requirements or omit. |
Pipe supports | RETRODEK pre-routed 300 Kpa, EPS insulation panel, 1200 x 600 x 18 mm. |
Floor components | Not required. 6–18 mm ply. Guidance for specification option: Optional. Applied prior to floor finish. 6 mm fibre cement panel. Guidance for specification option: Optional. Applied prior to floor finish. Self levelling compound. Guidance for specification option: Optional. Applied prior to floor finish. |
Structural deck | 18 mm ply structural (supplied by others). |
Acoustic insulation | Not required. Acoustic layer (supplied by others). Guidance for specification option: Optional acoustic layer installed prior to RETRODEK 18 in accordance with acoustic specification. |
Floor finish | Manufacturer guidanceSupplied by others, insert requirements. |
Sustainability data
Material | Aluminium Expanded polystyrene (EPS) |
Literature
Product Data Sheet - ITHERME RETRODEK 18
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