I have a spare radiator after fitting a towel rail type in the bathroom so I am going to fit it in the living room to give a boost on very cold days. If I put T pieces into the flow and return in the hall way it would mean a long run, about 25 feet, to the rad. Or I could divert the flow & return to run closer to the rad then put connections into the rad. Would it matter if there was a very long run off the flow and return to the rad. This will be run under the floor and I intend to insulate the pipesto cut down heat losses.
Thanks
Kevin