Hi all:

I have a 2600 sq ft 2 story home built in 1846. I also have cast iron
radiators in both floors, which are the primary heat source. We have an oil
fired boiler which is five years old & 87% efficient att last measurement.
We would like to convert to radiant floor heat as we have total access to
the underside of the first floor. Anyone have experience/advice on
retrofit of a radian heat system in older homes?

Randy