Boiler/Radiator zone conversion

[Jon Mulholland]

Hi all, I know there is a lot more needed for a real estimate, but wondering if anyone has experience splitting one “zone” of radiators that runs through two floors into two separate zones?

My situation is, I have two units (one on each floor) both with radiator heat, but the same thermostat controls both floors, and is located on the 2nd floor (top unit).

I would love to give tenants in each unit the ability to control their own heat.  Anyone have experience with this, and have a high level ballpark of what I’m looking at?  My gut says it would be expensive, and possibly not worth it in the end, but thought I’d ask the forum.  Thanks!