Plumbing Question

Hi i have a 20yrs -25yrs baxi burmuda boiler when it first comes on in the morning just have hot water on not heating on now you get a lound knocking noise which lasts for about 3 mins

boiler about 25-30 yrs old
have 8mm cooper pipe for my rads
thermostat on wall is new
timer is new
can only have water on and heating off ,but cant have heating on it own



2 Answers

It can be converted to do this

Answered 14th Aug 2011

Paul Caton Gas Services

Member since 23 Mar 2010

The noise is probably Air in the System or the system has a blockage(s) or Heat Exchanger is scaled up restricting flow. I would bleed all your radiators to make sure full of water, open any air valves and make sure no air in system also. Otherwise call in a Plumber to check the system.

Reason why you cannot have Heating on its own is because it has to have Hot WAter on to switch Boiler on. You can have a new programmer fitted and rewired so that you could have either working independantly, this would be completed by an electrician.

Pipe Dreams Plumbing Services

Answered 14th Aug 2011

Pipe Dreams Plumbing Services

Member since 9 Sep 2009

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