There are a few companies that offer these heaters but they are for industrial use and are not cheap. Pro Heat is one, Salamander is another
here are some web sites that may help
salamander dealer.
http://www.infraredheaters.com/ese.htmreptile heaters
http://secure.cartsvr.net/catalogs/catalog.aspThere are tons more online just do a dogpile search for "ceramic heaters"