The Umat200 (200W/m2) very thin underfloor heating mat kit is designed for installation on concrete floors under floor tiles in high heat loss areas, such as conservatories. *Please check that your floor finish is suitable for underfloor heating before purchasing. The underfloor heating mat is 0.5m wide and can be shaped to fit any free floor area which is at least 10-15% larger than the size of the mat. The Umat consists of a self adhesive fibreglass mesh with a very thin heating cable fixed to the mesh. The Umat underfloor heating mats are available in a wide range of sizes and an unlimited amount of heating mats can be used to heat any floor area. Up to 18m2 of Umat200 heating mats can be controlled by a single underfloor heating thermostat. For larger areas, please use multiple thermostats or a contactor to switch the load.