Hi I wish to replace a radiator. without draining the whole system. I believe i can depressurise the boiler but don't khow how to

John, March 2009

hi john you dont need to depressuise the boiler just turn off the radiator valves and undo the unions and drain it.when you refit the radiator fill the system with the filling loop near the boiler untill gauge reads 1 bar open the valves and vent till full then presurise till gauge reads 1 bar thats it

ajm heat, March 2009