as in prev thread?

depends! if you have a new expansion vessell fitted behind the boiler then yes i think its a big job, because from what a remember you require the boiler pretty much removing from the wall to replace the vessell, the easier option is to have a new vessell fitted somewhere else, only problem with that is its a little bigger than a football but shouldn't take half as much time! hope this helps!

kev!
December 2007