Not sure about the drum beat, at 6.30 in the morning it does sound a bit like the best of Q 'N' R though!
So you think bleeding the radiators or changing the thermocouple might fix it then, so is it maybe just a case of trapped air in the system?
Just moved into a new apartment and have been very disappointed and astonished with the noise of my Baxi Bahama boiler everytime it is switched on. There is a continuous banging noise, like a drum beat, which continues for the entire time I have the system switched on. I have read on other...