Our unique designed rectifying air-flow system allows for best and excellent cooking of meats with natural flavors and juices. For safety, in addition to the Flame Failure Safety Device and Back-Fire Protection Device, etc., a high efficiency Oil Filter and A large capacity Water (Drain) Pan are equipped on roaster unit. Minimized internal cooking components are easily removal for daily cleaning. Gas Metal Heating Plate Type Model JX-M Gas Ceramic-made Charcoal Type Model JX-S Charocal Type (With a gas burner) Model JX-C Lava-Rock Type Model JX-B Rectangular Grilling Area Type Model KTN Enamel-Coating Charcoal Pot Type Model CHU Japanese "Shichirin" Charcoal Pot Type Model C7U