My son is renovating the basement of his 1940's era house. He's having the big old iron hot-water radiator pipes that hang below the ceiling replaced with flexible black Pex(?) tubing and put up into the ceiling. A plumber mentioned to him that some people are choosing to dispose of the radiators and instead just loop the pex tubing all around inside the walls behind the drywall - like radiant heat.
My questions are: does anyone have an opinion about this? Will it cost more to heat a room like this instead of having a radiator in it? Are there any other pros or cons?
Thanks,
Donk