hello all, i have a merrimack and my wife brought a giant wrouth iron steamer. i took temps with a gun and the merrimack is at like 500 degrees and i usually have the fan on medium to high so i know that cools the top. Are these things supposed to steam? are u supposed to see it? i have even put potpourri in but it doesn't get hot enough to make it smell nice. water does dissipate a little. Should i get a smaller steamer made of metal? or is that a waste of money?