radiator balancing

Hi, I have an installed a new radiator on a one pipe system, It is directly above the bypass and doesn’t have any bends. The inlet side pipe is red hot yet the outlet is approx 30% cooler. The radiator also feel cooler on the outlet side. I have checked for air and the pressure is 2 bar. lock...

Hi all, is it absolutely necessary to find the order rads are on the system in aid to balance them effectively? I have no idea where my radiators are with respect to 1 through 10 and have tried the running around and touching method with little success! Is it acceptable just to check flow and...