Pipework Banging when boiler gets up to temperature?

[jago192]

My pipework on my central heating system (taxi duo etc) keeps banging when the boiler gets up to temperature. I have bleed all radiators but didn't seem to do anything?

any help will be much apperaticed

 

[ShaunCorbs]

Sounds like there's not many clips / clips too tight with no felt so there rubbing on the timbers due to expansion and contraction