Please select the desired size in the top right of the product image 90 watts / m2: floor temperature temperature as a economical additional heating Electrical thin bed heating with 90/160/22 watts / m2: as an additional or full value heating Complete set: controller with floor sensor + heating mat + installation instructions Info: In 2021 we gradually switched to 100 watts / 150 watts and 200 watts / m2 But do not damage the heating cable or lay them over the cross on top of each other The carrier grille may be cut to lay the heating back in parallel or around the corner. Please note our information on the statutory battery regulation in the area of terms and conditions.