retrofit and old hot water system

joe_37

I am retro fitting an old hot water system. I will be adding one radiant system and reuseing alot of the old raditors. I want to add thermostic valves to the raditors and pipe them off of a manifold. I will also be adding a indirect. I want to run a primay loop in the boiler room and take the other zones off as sencodarys. Also was thinking of useing so sort of outdoor rest control but not sure of how to control the thing. Any sugjestions would be greatly apperitaced thanks,