ITHERME GYPSUMDEK 18 - Underfloor Heating System
Verified by manufacturer 2 days ago
ITHERM E GYPSUMDEK 18 is an ultra-low profile structural underfloor heating panel designed to deliver efficient heat output with minimal increase in floor height.
Application
The ITHERME GYPSUMDEK 18 system is installed directly onto a joisted subfloor, with heating pipework laid into the pre-routed channels and finished using a thin self-levelling screed, gypsum screed panel, or plywood layer before the final floor finish is applied.
Description
The ITHERME GYPSUMDEK 18 is an ultra-low profile structural underfloor heating panel designed for joisted subfloor constructions where minimal height build-up is required. With an overall thickness of just 18 mm, the system installs directly onto the subfloor and requires only a thin self-levelling screed or alternative covering prior to the final floor finish. The pre-routed pipe channels securely house the heating pipework, supporting efficient heat transfer and consistent thermal performance across the floor area while maintaining structural integrity.
Features and benefits:
- Ultra-thin 18 mm panel designed for minimal floor height increase.
- Pre-routed channels tightly encase pipework for secure installation.
- Requires only 3–5 mm self-levelling screed, or alternative slim covering options.
- Provides even heat distribution and strong system output.
- Suitable for structural joisted subfloor applications.
- Compatible with all common floor finishes, including tiles.
- Factory-sealed gypsum board offers dimensional stability and durability.
- Non-flammable material classified to Euroclass A2.
General information
Color | Grey |
Finish | Other |
Material | Gypsum 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 EPS insulation panel, 1200 x 600 x 18 mm. |
Floor components | 6 mm ply. 3-5 mm self levelling compound. Itherme Gypsumplate 9 mm gypsum panel. Itherme Gypsumplate 18 mm gypsum panel. |
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 Gypsumdek 18 in accordance with acoustic specification. |
Floor finish | Manufacturer guidanceSupplied by others, insert requirements. |
Sustainability data
Material | Gypsum Expanded polystyrene (EPS) |
Literature
Product Data Sheet - ITHERME GYPSUMDEK 18
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