No open fire of any type shall be permitted at anytime in the City of Woonsocket. This includes domestic yard trash fires and leaf burning. Open fire is defined as any fire within which the products of combustion are emitted into the open air and are not directed through a stack or chimney. Barbecue pits shall be used only for the cooking of food and not as an incinerator. Charcoals, or similar type cooking fuel, shall be the only fuel permitted in barbecue pits.