clanking radiator!!! Help and information on all topics relating to your central heating, air conditioning and ventilation issues.

[rose]

having problems with heating system...some rads are very hot and some are warmish/but more on the cold side. one radiator in particular starts clanking when (i think) the target temperature has been reached, but not too sure if that is right. I feel that some rads are drawing heat from others...could this be right? any advice welcome

[htg engineer]

Do you have trv's fitted ? if so the pins can sometimes stick.

The system may also need venting or the pump may be on it's way out.

htg