Hydronic radiant floor heating systems use a boiler to heat up hot water and a pump to circulate the hot water in plastic pipes installed in a concrete slab. The pipes, embedded in the floor, carry heated water that conducts warmth to the surface of the floor where it broadcasts energy to the room.
Separated radiant heat zones are controlled by one thermostat and served by a manifold which distributes the flow of warm water to the individual circuits of tubing within each zone.