A pellet-fired barbecue including an elevated barbecue pan fired by a pellet-burning pot mounted below the bottom of the barbecue. A heat baffle plate is disposed within the pan above the top of the pot, and forced-air mechanism produces movement of hearted air within the barbecue....http://www.google.es/patents/US4823684?utm_source=gb-gplus-sharePatente US4823684 - Pellet-fired barbecue