make sure taps at both ends of of the rariator are open find the bleed valve and open it (there may be two bleed screws on a double radiator) switch heating on and wait for the watter to run out of the bleed valve this is ok for gravity systems if you have a combi boiler you will have to fill the system to the apropriate level (usually between 0.5-1.5 bar)and keep bleeding the radiators untill all the air is gone
RS, October 2004
