how drain bathroom radiator to add thermostat?

need to know what sort of heating system is

es
July 2008

you will need to drain your complete system, or use a freezing kit to remove the radiator valves & replace with thermostatic one, you can remover the radiator without draining down, but the if you remove the valves the system will need draining first (remember to add inhibitor when refilling too!)

T
July 2008