Central heating query

[Von1]

Ever since I moved into this house (at least 10 years ago) one of the central heating radiators is always warm/hot. If I turn it off the one in the next room heats up, and so on. Can anyone explain the reason for this and should it be happening? If not, what can I do to remedy it, bearing in mind I have no clue about plumbing.
Also, is it bumping up my gas bill??

 

[diverdee]

is your hot water system on permantly.if so sounds like some rads are being used as a heat sink.is it a 4 pipe boiler or three

 

[Deleted member 105431]

possible 3port letting by (if you leave hw on constant) and yes it is wasting gas!

 

[spudkey]

could be the system is not correctly designed, return pipe from rads connected in wrong place causing reverse circulation

 

[Von1]

Thanks for your replies.

Firstly I have no idea about the pipes/boiler as it is behind the fireplace and I wouldn't know what to look at if I found it.

I don't know if this answers any of your questions but the heating and hot water are timed to come on twice a day via the central heating timer, although the radiator is hot all the time. The immersion heater is never on. I don't understand why the radiator is hot if the heating system is supposed to be off. Am I being really stupid??

I've asked plumbers/heating engineers in the past about it but have never really received a satisfactory explanation.

Any idea what I can do?