I have a turn-of-the century brick house that I am renovating. It is not very big, aprox. 1800 sqft. I have replaced all of the original glass with double-pane insulated glass, and am adding 3" of insulation on all of the walls. I need to make a choice of heating options. I live in utah, so the winters get pretty cold. I have thought about radiator heating, but I don't know how efficient/economical this solution is. It would be the easiest to implement cuz I wouldn't have to run any heating ducts, just some piping to radiators. Any input?