Pipe above two port gets hot as does return. Able to take ground floor rads off and get short burst of that hot water but it is not pushing round the system.
Hi,
I have a Worcester Bosch Greenstar 24i system, installed in 2009 with a megaflop indirect cyclinder. The primaries are 28mm, split into a 28mm 2-port for heating and a 22mm 2-port for hot water. The 28mm 2-port for CH was changed and is wired correctly.
The issue is if the hot water is on...