Hi - I am very new to this forum and have looked for an answer but not succeded so hoping someone out there can advise me.
I have a system fed by a valiant combie boiler feeding aluminium rads from 22 and 18mm pipes (am in spain) The rads are all connected TBOE with the hot feed and control valves to the top. My problem is that although the balance seems OK in that all rads heat up together and seem to reach the same temperature only the top half of the rads are warm - the bottoms remain cold why? Would it make any sense to change the connections to bottom only or feed through the bottom instead of the top?
I have a system fed by a valiant combie boiler feeding aluminium rads from 22 and 18mm pipes (am in spain) The rads are all connected TBOE with the hot feed and control valves to the top. My problem is that although the balance seems OK in that all rads heat up together and seem to reach the same temperature only the top half of the rads are warm - the bottoms remain cold why? Would it make any sense to change the connections to bottom only or feed through the bottom instead of the top?
