With a water-based underfloor heating system, a series of pipes connected to your boiler circulate warm water throughout the floor in each room, operating in a similar manner to the radiators in your house.  

 

Alternatively, you can connect the underfloor water pipes to a solar water-heating system, air-source or ground-source heat pump. The pipes will be connected to your heat source using a manifold (essentially a central system allowing all the pipes to work together). 

 

The bigger the system, the more pipes it will have and the more complex the manifold will be. The system will also be fitted to a thermostat (or thermostats, if you're having more than one zone) so that you can regulate the temperature. 

 

Here you can see a water fed underloor heating ststem manifold and controls with all the wiring expertly installed by Redwood Electrical.