My mother-in-law has radiant heat in a ranch build on a cement slab. Of the seven zones, one has ruptured a has been shut off. Since the house is a ranch, I was thinking that an HVAC person could remove the boiler and install a furnace and pipe all of the duct work through the empty attic. This way, central a/c could be added to the system at the same time.
The house is in mass, so I was also thinking of converting from oil to natural gas. Gas is on the street. The furnace that national grid sells is American standard. I'm still in the process of finding reviews on it.
Any body have thoughts on this. Any help would be appreciated.