I have an electric dryer that is not vented (the hot air is spewed into the bathroom). I was originally going to have it externally vented, but my contractor thinks it would be adequate to vent it into the furnace room (where my gas furnace is). Is this within code? What happens to the moisture? I live in a 900 sq ft brownstone condo and the "furnace room" is no bigger than 10 x 10.