Vents installed in the surrounding block wall are always recommended. Smoke reduction is achieved by hot fire and lots of air. Adding vents to nearly any wood- burning firepit will increase air flow, facilitating easier starting, better burning and less smoke. Our patent pending SureFlo™ vents have a unique design for space-saving storage (for dealers) and easy installation. Unlike other vent brands and styles, no block cutting or drilling is required with SureFlo™ vents. These vents can also be used for venting gas pits. Check out our competitive prices.