... ISO,CE ROHS 4,workv voltage:110V,220V,240V 1,floor heating cable,such as under ceramic tile2,warranty:50 years3, ... continuity and security of insulation layerFloor heating system work progress:Reserve the position of thermostat,clean the floor and flat fround,supply with ... maintainance 72 hours ,do not power8,other contruction9,install the thermostat temperature controlled Floor Heating Cable