How is radiant heat more comfortable?
No drafts. Less dust. Heat is where you need it. In a room heated with radiant heat, the temperature at the floor is very close to the temperature higher up. In a room heated with scorched air, the temperature at the ceiling is considerably higher than the temperature at the floor. This is the opposite of what you want from a comfort standpoint. People are more comfortable when their feet are warm, and even tend to prefer a lower room temperature if their feet are warm.