wrote in message
Sorry, Ed, but you'll confuse him with the bit about forced-air being
dryer. Not so. Whether air is heated at furnace heat-exchanger, or at
skin of radiator, a given temp rise will result in precisely the same
change of relative humidity. Humidification with forced-air is a
piece-of-cake.

While you are scientifically correct. my nasal passages tell me different.
At least that is my experience with two houses I lived in with forced hot
air heat. Maybe older, less efficient equipment was a factor.