I have never had experience with a fireplace until i moved into this mobile home with one built in. I have been using it a little without any problems but now a neighbor came by and told me the cone in the cap is upside down. The cap has a cone shaped piece in it that is "pointing" down like a funnel but is inclosed inside the overall cap. First i'm not sure if he is correct and second if he is how would i get inside the enclosed cap to turn it around?