need to replace expansion vessel on a worcester bosch 24 cdi

10 Dec 2006
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United Kingdom
hi all,i am going to replace the expansion vessel on my worcester 24 cdi combi, as the old vessel diaphragm has split/perished. i am going to leave the existing vessel in position and fit the new vessel seperately in the airing cupboard where the boiler is located.the current vessel takes a feed from the side of the pump,but i am thinking of taking a feed to the new vessel from either the flow or return pipes that come below the boiler can i connect the vessel to either the flow or return pipes.the central heating is in a bungalow and feeds 9 rads. can i use a universal expansion vessel ie not worcester,and what size would i need,can anyone recommend a particular make cheaper than worcesters own.finally can expansion vessels be fitted anywhere on the heating system or do they have to be located within a certain distance from the boiler.thanks velo
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it should be located near the pump and behind it to keep system pressure positive. so on the return would be ideal. however if it has to go on the flow i cant see it being a major problem.

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