Hi Chris
Thanks a lot for your reply. We moved into this house only in Januar so unfortunately we haven't got a lot of history. All I can say is that it is a conventional boiler, branch Worcester Delglo2. When we switch on central heating you can hear it firing up and the water is running...
I was wondering if somebody could help me out on this. When we are turning on the central heating our radiators only go lukewarm (bottom gets hot but top not). After a while (1 or 2 hours) being on all the radiators get cold and do not warm up for the rest of the evening. That way the house...