sorry put this in the wrong place orginally
so i have 8 x 6.5 meters of radatiors i am in a 3 bed 1950s semi so its of
average size, my combi boiler runs my ch and hot water i can only get some rads to heat up if i turn of the ones that are on then the ones that are cold heat up but one stays cold in one corner, once i turn the other rads back on these go cold again, i have tried all the things suggested in faqs so any idea what my problem could be and whats size kw boiler should i have for my system, i curently have a logic combi boiler, thanks for any advice in advance guys
so i have 8 x 6.5 meters of radatiors i am in a 3 bed 1950s semi so its of
average size, my combi boiler runs my ch and hot water i can only get some rads to heat up if i turn of the ones that are on then the ones that are cold heat up but one stays cold in one corner, once i turn the other rads back on these go cold again, i have tried all the things suggested in faqs so any idea what my problem could be and whats size kw boiler should i have for my system, i curently have a logic combi boiler, thanks for any advice in advance guys