adding zone

601fitter

Hi, thinking this is my first thread here but whow knows.. Anyway, I'm going to add a little radiation in the basement of my one story ranch house.. this house has a continuous loop system (prefab home from the 70s) I was thinking of changing it over to a two pipe reverse but the little house seems to heat pretty well so I'll leave well enough alone, but to the question.. what's a simplest most cost effective way to add another loop in the basement?
Thanks