In fairness to all, we don't discuss pricing on the Wall. Thanks for your cooperation.
I am replacing some old cast iron radiators with some new ones. The old radiators were piped with the supply and return piping at the bottom of the radiators, this was an old gravity type hot water system. I am also replacing the boiler, the new system will have a circulator pump. My question is: what is the best piping arrangement on the radiators as far as supply and return piping? Thank you.