right, i have small flat, gunna have a combi, only have 5 rads, will i need an extra expansion vessel? if yes can it go anyware arround the system? or does it have to be right next to the boiler? Cheers BR
BR, No, unless you are using old fashioned radiators with high water content, the built-in expansion vessel will suffice. If you tell me the make and model of the boiler, I can probably find you an installation manual with the spec.
cheers.....i aint got a clue what the rads are...dont even av boiler yet..ill let the plumber worry about it then BR