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Connection from imbedded Pex to CI radiator?
Renovating my 2-story building. It was heated by a circulating hot water system with cast iron radiators. I may want to reuse some of the decent looking existing 1930’s CI radiators to heat the renovated cellar or perhaps use new cast iron baseboard. Rather than have piping coming down from ceiling I’d like to feed the six radiators individually via a manifold w pex S/R feeds embedded in the slab. Mod-con system design max temp 140 degree. Should I decide to use a floor-mounted radiator, the clearance from top of concrete to the connection could be minimal, less than a few inches. Can anyone recommend an assembly for such connections?