Baking ovens; Barbecue grills; Cooking grates adapted for barbecue grills; Cooking grids adapted for barbecue grills; Fireplace inserts, comprised of andirons, artificial logs and artificial embers powered by gas or electricity; Folding portable charcoal, propane and gas fired barbecues, stoves, and grills; Gas burners; Hot plates for household purposes; Oven gas igniters; Safety accessories for gas pipes, namely, flashback arrestors and reverse flow check valves