Floor heating is either electric, with heating cables or mats under the floor, or hydronic, with warm water running through pipe in the floor. Warmboard is hydronic.
A heat source, such as an air-to-water heat pump, warms the water. A manifold sends it through loops of pipe laid in the channels of the Warmboard panels, and the panels’ aluminium face spreads the heat across the floor. Each room or zone can have its own setting.