have been helping a friend out sorting out her house pipework. I have replaced the cylinder etc. and moved rads and header tanks for water and heating.she wants to put 2 rads in the attic which measure 50 cm heigh,(fitted and connected) but the bottom of the heating header is 65 cm high, so there is a minimum of 15 cm head.will it work? no room to raise header as would end up in the middle of the bedroom! any comments appreciated.
Just so long as the top of the highest rad is lower than the bottom of the header tank and you can fill the rads without trapping any air then yes it should work.