DANFOSS DEVI 140F1757 DEVImat 150 Thin-Bed Electric Underfloor Heating Mat Set 150W/m², 4m², 0.5 x 8m, 600W

For homeowners and tilers installing electric underfloor heating beneath tiles, natural stone, laminate, wood, or vinyl, the DANFOSS DEVI 140F1757 DEVImat 150 provides a complete thin-bed heating solution. This mat set covers 4 m² with a power density of 150 W/m², delivering 600 W of total output at 230 V AC. The mat measures 0.5 m wide by 8 m long, with a twin conductor cable of approximately 3.5 mm diameter and a 3 m connection cable for flexible installation.

Key specifications

• Power density: 150 W/m²
• Heated area: 4 m²
• Mat dimensions: 0.5 m x 8 m
• Total power output: 600 W
• Operating voltage: 230 V AC
• Cable type: Twin conductor
• Cable diameter: Approx. 3.5 mm
• Connection cable length: 3 m
• IP protection class: IPX7
• Installation depth: Approx. 3.5-4 mm (within tile adhesive)
• Minimum installation temperature: -5 °C
• Maximum operating temperature: 90 °C
• Conductor material: Copper
• Insulation material: FEP/XLPE

Why choose it

The DEVImat 150 is engineered for thin-bed installations, embedding directly into tile adhesive for efficient heat transfer. Its twin conductor design reduces electromagnetic fields, and the IPX7 rating ensures protection against water ingress, making it suitable for wet areas like bathrooms. The pre-spaced mat simplifies installation, saving time on site.

Ideal use cases

• Primary or supplementary heating under tile, stone, laminate, wood, or vinyl floors
• Bathrooms, kitchens, and other wet areas where IPX7 protection is required
• Renovation projects where minimal floor height build-up is desired

Good to know

The mat is approved to CE standards and operates on a standard 230 V AC supply. It can be installed at temperatures as low as -5 °C, allowing work in unheated spaces during colder months. Always follow the manufacturer's installation instructions and local electrical regulations.