System panels for accommodating a heating cable and laying under laminate and wooden floors. The system is an electric heating system for controlling the temperature of laminate and wooden floor coverings in dry construction. To determine the number of system panels required, the total area must be determined taking into account the amount of waste required. The result must be rounded up or down to the nearest meter. The required heating cable is determined by multiplying the heated area by a factor of 10. A mounting set is required for each thermostat to position the floor sensor. Not suitable for damp rooms, bathrooms, etc. Packaging unit consisting of 5 m system panels, width: 500 mm, length: 1000 mm, thickness: 13 mm, U-value: 3.0 W/mK, impact sound insulation: 3db, heating cable length per m: 10.0 m, max. permissible heating output: 100 W/m,